1
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Gaeta M, Travagliante G, Barcellona M, Fragalà ME, Purrello R, D'Urso A. Self-Assembled Chiral Film Based on Melanin Polymers. Chirality 2024; 36:e23695. [PMID: 38890151 DOI: 10.1002/chir.23695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 06/20/2024]
Abstract
Chirality plays a fundamental role in natural phenomena, yet its manifestation on solid surfaces remains relatively unexplored. In this study, we investigate the formation of chiroptical melanin-based self-assembled films on quartz substrates, leveraging mussel-inspired surface chemistry. Water-soluble porphyrins serve as molecular synthons, facilitating the spontaneous formation of hetero-aggregates in phosphate-buffered saline containing L- or D-DOPA. Spectroscopic analysis reveals chiral transfer from DOPA enantiomers to porphyrin hetero-aggregates, followed by the disruption of these latter and subsequent generation of chiral melanin structures in solution. Quartz substrates inserted into these solutions spontaneously accumulate homogeneous melanin-like films over days, demonstrating the feasibility of self-assembly. The resulting films exhibit characteristic UV/Vis and CD spectra, with distinct signals indicating successful chiral induction. Interestingly, the AFM characterizations reveal a distinct surface morphology, and in addition, some thermal and mechanical properties have been taken into account. Overall, this study sheds light on the formation, stability, and chiroptical properties of melanin-based films, paving the way for their application in various fields.
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Affiliation(s)
- Massimiliano Gaeta
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Catania, Italy
| | | | - Matteo Barcellona
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Catania, Italy
| | - Maria Elena Fragalà
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Catania, Italy
| | - Roberto Purrello
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Catania, Italy
| | - Alessandro D'Urso
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Catania, Italy
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2
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Singha R, Maity P, Samanta D. Chiral Induction in a Self-Assembled Pd 4 Coordination Cage with Chiral Guests. Chemistry 2024:e202401013. [PMID: 38700019 DOI: 10.1002/chem.202401013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 05/03/2024] [Accepted: 05/03/2024] [Indexed: 05/05/2024]
Abstract
The dynamic interplay of coordination bonds within metal-organic cages offers a unique avenue for structural evolution in response to external stimuli, presenting a promising strategy for the construction of chiral assemblies. This adaptability is crucial for the selective synthesis of homochiral assemblies and advancement of asymmetric catalysis. In this study, we report the self-assembly of an achiral square-planar Pd(II) acceptor with a C2-symmetric tetrapyridyl donor resulted in the formation of a racemic mixture of the chiral octahedral cage Pd4L2. The existence of this racemic mixture was confirmed using circular dichroism spectroscopy as well as single crystal X-ray diffraction analysis. We encoded chiral information into the asymmetric cavity of the cage by encapsulating chiral aromatic guests through efficient π-π stacking and hydrophobic interactions in aqueous media. The inclusion of a chiral guest induces a preference for one enantiomeric conformation of the cage over the other, effectively shifting the equilibrium towards a single, enantiopure host-guest complex. While the concept of chiral guest recognition by a chiral host is well-established, this work constitutes a remarkable example of guest-mediated chirality transfer leading to the formation of a single enantiopure coordination complex from achiral building blocks.
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Affiliation(s)
- Raghunath Singha
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar, Jatni, Khurda, Odisha, 752050, India
| | - Pankaj Maity
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar, Jatni, Khurda, Odisha, 752050, India
| | - Dipak Samanta
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar, Jatni, Khurda, Odisha, 752050, India
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3
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Sarà M, Giofrè SV, Abate S, Trapani M, Verduci R, D’Angelo G, Castriciano MA, Romeo A, Neri G, Monsù Scolaro L. Absorption and Fluorescence Emission Investigations on Supramolecular Assemblies of Tetrakis-(4-sulfonatophenyl)porphyrin and Graphene Quantum Dots. Molecules 2024; 29:2015. [PMID: 38731505 PMCID: PMC11085775 DOI: 10.3390/molecules29092015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/17/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
The one-pot synthesis of N-doped graphene quantum dots (GQDs), capped with a positively charged polyamine (trien), has been realized through a microwave-assisted pyrolysis on solid L-glutamic acid and trien in equimolar amounts. The resulting positively charged nanoparticles are strongly emissive in aqueous solutions and are stable for months. The interaction with the anionic tetrakis(4-sulphonatophenyl)porphyrin (TPPS4) has been investigated at neutral and mild acidic pH using a combination of UV/vis absorption spectroscopy together with static and time-resolved fluorescence emission. At pH = 7, the experimental evidence points to the formation of a supramolecular adduct mainly stabilized by electrostatic interactions. The fluorescence emission of the porphyrin is substantially quenched while GQDs remain still emissive. On decreasing the pH, protonation of TPPS4 leads to formation of porphyrin J-aggregates through the intermediacy of the charged quantum dots.
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Affiliation(s)
- Mariachiara Sarà
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31, 98166 Messina, Italy; (M.S.); (S.V.G.); (S.A.); (M.A.C.); (A.R.)
| | - Salvatore Vincenzo Giofrè
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31, 98166 Messina, Italy; (M.S.); (S.V.G.); (S.A.); (M.A.C.); (A.R.)
| | - Salvatore Abate
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31, 98166 Messina, Italy; (M.S.); (S.V.G.); (S.A.); (M.A.C.); (A.R.)
| | - Mariachiara Trapani
- CNR—ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31, 98166 Messina, Italy;
| | - Rosaria Verduci
- Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, University of Messina, V.le F. Stagno D’Alcontres, 31, 98166 Messina, Italy; (R.V.); (G.D.)
| | - Giovanna D’Angelo
- Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, University of Messina, V.le F. Stagno D’Alcontres, 31, 98166 Messina, Italy; (R.V.); (G.D.)
| | - Maria Angela Castriciano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31, 98166 Messina, Italy; (M.S.); (S.V.G.); (S.A.); (M.A.C.); (A.R.)
| | - Andrea Romeo
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31, 98166 Messina, Italy; (M.S.); (S.V.G.); (S.A.); (M.A.C.); (A.R.)
- CNR—ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31, 98166 Messina, Italy;
| | - Giovanni Neri
- Dipartimento di Ingegneria, University of Messina, Contrada di Dio, 98158 Messina, Italy;
| | - Luigi Monsù Scolaro
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31, 98166 Messina, Italy; (M.S.); (S.V.G.); (S.A.); (M.A.C.); (A.R.)
- CNR—ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31, 98166 Messina, Italy;
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4
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Yang YH, He R, Qin Y, Zhang L. Metal-ion-triggered symmetry breaking of completely achiral azobenzene amphiphiles in water. NANOSCALE 2024. [PMID: 38639490 DOI: 10.1039/d3nr06668a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Achieving control over symmetry breaking of completely achiral components in the aqueous phase is a significant challenge in supramolecular chemistry. Herein, we demonstrate that it is possible to construct chiral nanoassemblies by introducing metal ions (Zn2+, Fe3+, Al3+, Cu2+, and Ca2+) into completely achiral azobenzene amphiphiles with key structural factors in the pure aqueous phase. It is found that the coordination interactions, π-π stacking, hydrophilic and hydrophobic interactions, hydrogen bonding, and electrostatic interactions are crucial to the metal-ion-induced symmetry breaking of completely achiral building blocks. This study may provide an intriguing model system for constructing chiral assemblies based on completely achiral molecules.
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Affiliation(s)
- Yun-Han Yang
- PCFM Lab, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China.
| | - Ran He
- PCFM Lab, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China.
| | - Yang Qin
- PCFM Lab, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China.
| | - Ling Zhang
- PCFM Lab, IGCME, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China.
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5
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Abstract
As an active branch within the field of supramolecular polymers, chiral supramolecular polymers (SPs) are an excellent benchmark to generate helical structures that can clarify the origin of homochirality in Nature or help determine new exciting functionalities of organic materials. Herein, we highlight the most utilized strategies to build up chiral SPs by using chiral monomeric units or external stimuli. Selected examples of transfer of asymmetry, in which the point or axial chirality contained by the monomeric units is efficiently transferred to the supramolecular scaffold yielding enantioenriched helical structures, will be presented. The importance of the thermodynamics and kinetics associated with those processes is stressed, especially the influence that parameters such as the helix reversal and mismatch penalties exert on the achievement of amplification of asymmetry in co-assembled systems will also be considered. Remarkable examples of breaking symmetry, in which chiral supramolecular polymers can be attained from achiral self-assembling units by applying external stimuli like stirring, solvent or light, are highlighted. Finally, the specific and promising applications of chiral supramolecular polymers are presented with recent relevant examples.
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Affiliation(s)
- Fátima García
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040-Madrid, Spain.
| | - Rafael Gómez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040-Madrid, Spain.
| | - Luis Sánchez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040-Madrid, Spain.
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6
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Gangemi CMA, Castriciano MA, D'Agostino E, Romeo A, Bonaccorsi PM, Barattucci A, Monsù Scolaro L. Rod-like nanostructures through amphiphilic OPE-porphyrin self-organization. Org Biomol Chem 2023; 21:8079-8083. [PMID: 37753842 DOI: 10.1039/d3ob01385e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
A new amphiphilic monosubstituted porphyrin functionalized by a β-D-glucoside terminated oligophenylenethylene (OPE) able to self-arrange into nano-aggregates in polar solvents has been synthesized and fully characterized in its monomeric and aggregated forms.
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Affiliation(s)
- Chiara M A Gangemi
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina, V.le F. Stagno D'Alcontres 31, 98166 Messina, Italy.
| | - Maria A Castriciano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina, V.le F. Stagno D'Alcontres 31, 98166 Messina, Italy.
| | - Ester D'Agostino
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina, V.le F. Stagno D'Alcontres 31, 98166 Messina, Italy.
| | - Andrea Romeo
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina, V.le F. Stagno D'Alcontres 31, 98166 Messina, Italy.
| | - Paola M Bonaccorsi
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina, V.le F. Stagno D'Alcontres 31, 98166 Messina, Italy.
| | - Anna Barattucci
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina, V.le F. Stagno D'Alcontres 31, 98166 Messina, Italy.
| | - Luigi Monsù Scolaro
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università degli Studi di Messina, V.le F. Stagno D'Alcontres 31, 98166 Messina, Italy.
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7
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Gaeta M, Randazzo R, Costa C, Purrello R, D'Urso A. Enantiomeric Resolution and Enantiomer Isolation of H 2 TPPS4 J-Aggregate from Aqueous Solution Is Enabled by Vortexes. Chemistry 2023; 29:e202202337. [PMID: 36224099 DOI: 10.1002/chem.202202337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 12/14/2022]
Abstract
Protonated achiral H2 TPPS4 spontaneously self-arranges at acids pH and high ionic strength to build mesoscopic J-aggregates that are intrinsically chiral. According to the symmetry rule aggregation leads to a racemate that, however, can be unbalanced by chemical (chiral pollutants) or physical stimuli (as vortexing the solution). Vortexing the title racemate, in principle, might either induce chiral separation or chiral enrichment. Indeed, herein it is shown that vortices enable the resolution of this racemic solution exploiting the tendency to deposit, onto the quartz cuvette walls, of the enantiomer favored by the stirring sense. Simultaneously, over time, it was found that the opposite chiral conformation becomes prevalent in solution realizing a significant enantiomeric resolution. Therefore, after removing all stirring-favored chiral J-aggregate from the solution, the recovering and isolating of the desired enantiomers from the cuvette walls was successfully obtained without complex procedures. In this sense, it has been demonstrated that the stirring forces are executively able to fulfil the chiral separation in H2 TPPS4 J-aggregates, employed as model of a self-assembled system in aqueous solution.
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Affiliation(s)
- Massimiliano Gaeta
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale Andrea Doria, 6, 95125, Catania, Italy
| | - Rosalba Randazzo
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale Andrea Doria, 6, 95125, Catania, Italy
| | - Carlo Costa
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale Andrea Doria, 6, 95125, Catania, Italy
| | - Roberto Purrello
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale Andrea Doria, 6, 95125, Catania, Italy
| | - Alessandro D'Urso
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale Andrea Doria, 6, 95125, Catania, Italy
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8
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Zagami R, Castriciano MA, Romeo A, Scolaro LM. Kinetic Investigations on the Chiral Induction by Amino Acids in Porphyrin J-Aggregates. Int J Mol Sci 2023; 24:ijms24021695. [PMID: 36675210 PMCID: PMC9860692 DOI: 10.3390/ijms24021695] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 01/18/2023] Open
Abstract
The self-assembling kinetics of the 5,10,15,20-tetrakis(4-sulfonato-phenyl)porphyrin (TPPS4) into nano-tubular J-aggregates under strong acidic condition and in the presence of amino acids as templating chiral reagents have been investigated through UV/Vis spectroscopy. The ability of the chiral species to transfer its chiral information to the final J-aggregate has been measured through circular dichroism (CD) spectroscopy and compared to the spontaneous symmetry breaking process usually observed in these nano-aggregates. Under the experimental conditions here selected, including mixing protocol, we have observed a large difference in the observed aggregation rates for the various amino acids, those with a positively charged side group being the most effective. On the contrary, these species are less efficient in transferring their chirality, exhibiting a quite low or modest enhancement in the observed dissymmetry g-factors. On the other side, hydrophobic and some hydrophilic amino acids are revealed to be very active in inducing chirality with a discrete increase of intensity of the detected CD bands with respect to the spontaneous symmetry breaking.
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Affiliation(s)
- Roberto Zagami
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy
| | - Maria Angela Castriciano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy
| | - Andrea Romeo
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy
- CNR-ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy
| | - Luigi Monsù Scolaro
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy
- CNR-ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy
- Correspondence: ; Tel.: +39-090-676-5711
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9
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Stefanelli M, Magna G, Di Natale C, Paolesse R, Monti D. Stereospecific Self-Assembly Processes of Porphyrin-Proline Conjugates: From the Effect of Structural Features and Bulk Solvent Properties to the Application in Stereoselective Sensor Systems. Int J Mol Sci 2022; 23:15587. [PMID: 36555226 PMCID: PMC9779260 DOI: 10.3390/ijms232415587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/04/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
Conjugating the porphyrin ring with an amino acid via amide linkage represents a straightforward way for conferring both amphiphilicity and chirality to the macrocycle. Proline residue is a good choice in this context since its conformational rigidity allows for porphyrin assembling where molecular chirality is efficiently transferred and amplified using properly honed aqueous environments. Herein, we describe the evolution of the studies carried out by our group to achieve chiral systems from some porphyrin-proline derivatives, both in solution and in the solid state. The discussion focuses on some fundamental aspects reflecting on the final molecular architectures obtained, which are related to the nature of the appended group (stereochemistry and charge), the presence of a metal ion coordinated to the porphyrin core and the bulk solvent properties. Indeed, fine-tuning the mentioned parameters enables the achievement of stereospecific structures with distinctive chiroptical and morphological features. Solid films based on these chiral systems were also obtained and their recognition abilities in gaseous and liquid phase are here described.
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Affiliation(s)
- Manuela Stefanelli
- Department of Chemical Science and Technologies, Università di Roma Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Gabriele Magna
- Department of Chemical Science and Technologies, Università di Roma Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Corrado Di Natale
- Department of Electronic Engineering, Università di Roma Tor Vergata, Viale del Politecnico 1, 00133 Rome, Italy
| | - Roberto Paolesse
- Department of Chemical Science and Technologies, Università di Roma Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Donato Monti
- Department of Chemistry, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
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10
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Peruffo N, Parolin G, Collini E, Corni S, Mancin F. Engineering the Aggregation of Dyes on Ligand-Shell Protected Gold Nanoparticles to Promote Plexcitons Formation. NANOMATERIALS 2022; 12:nano12071180. [PMID: 35407298 PMCID: PMC9000468 DOI: 10.3390/nano12071180] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/18/2022] [Accepted: 03/28/2022] [Indexed: 12/10/2022]
Abstract
The ability to control the light–matter interaction in nanosystems is a major challenge in the field of innovative photonics applications. In this framework, plexcitons are promising hybrid light–matter states arising from the strong coupling between plasmonic and excitonic materials. However, strategies to precisely control the formation of plexcitons and to modulate the coupling between the plasmonic and molecular moieties are still poorly explored. In this work, the attention is focused on suspensions of hybrid nanosystems prepared by coupling cationic gold nanoparticles to tetraphenyl porphyrins in different aggregation states. The role of crucial parameters such as the dimension of nanoparticles, the pH of the solution, and the ratio between the nanoparticles and dye concentration was systematically investigated. A variety of structures and coupling regimes were obtained. The rationalization of the results allowed for the suggestion of important guidelines towards the control of plexcitonic systems.
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Affiliation(s)
- Nicola Peruffo
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy; (N.P.); (G.P.)
| | - Giovanni Parolin
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy; (N.P.); (G.P.)
| | - Elisabetta Collini
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy; (N.P.); (G.P.)
- Padua Quantum Technologies Research Center, Via Gradenigo 6, 35131 Padova, Italy
- Correspondence: (E.C.); (S.C.); (F.M.)
| | - Stefano Corni
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy; (N.P.); (G.P.)
- Correspondence: (E.C.); (S.C.); (F.M.)
| | - Fabrizio Mancin
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy; (N.P.); (G.P.)
- Correspondence: (E.C.); (S.C.); (F.M.)
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11
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Travagliante G, Gaeta M, Purrello R, Urso AD. Supramolecular Chirality in Porphyrin Self-assembly Systems in Aqueous Solution. CURR ORG CHEM 2022. [DOI: 10.2174/1385272826666220330112648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
The self-assembly process appears as a powerful and attractive strategy for constructing complex supramolecules by the spontaneous organization of appropriate building blocks. In this scenario, water-soluble porphyrinoids lend themselves as ideal paradigms to disclose the self-assembly phenomenon by exploiting their well-known tendency to build aggregates in aqueous media via weak non-covalent forces. Nevertheless, the spontaneous organization of achiral porphyrins can result in a final chiral superstructure moving away from single-molecule behaviour to supramolecular chirality. Therefore, over the years numerous attempts have been implemented to investigate how a porphyrin aggregate, made up of achiral monomers, becomes not-symmetric and which processes govern the bias for a certain enantiomeric assembly rather than another. Thus, in this mini-review, we exclusively discuss the main strategies for designing and building chiral aggregates in water from achiral porphyrin monomers, with particular regard to their chiroptical features.
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Affiliation(s)
- Gabriele Travagliante
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, 95125 Catania, Italy,
| | - Massimiliano Gaeta
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, 95125 Catania, Italy,
| | - Roberto Purrello
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, 95125 Catania, Italy,
| | - Alessandro D’ Urso
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, 95125 Catania, Italy,
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12
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Yang X, Shen Y, Liu J, Wang Y, Qi W, Su R, He Z. Rational Design of Chiral Nanohelices from Self-Assembly of Meso-tetrakis (4-Carboxyphenyl) Porphyrin-Amino Acid Conjugates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:13067-13074. [PMID: 34711055 DOI: 10.1021/acs.langmuir.1c02213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this article, meso-tetrakis (4-carboxyphenyl) porphyrins modified with different amino acids were designed, synthesized, and researched. The chiral self-assembly behavior of these porphyrin-amino acid molecules can be precisely controlled by adjusting the pH, constituent amino acids, and temperature, thereby giving rise to chiral nanostructures with precisely tailored helical pitch and handedness. This research provides a certain reference for the design and preparation of chiral nanomaterials and has potential application prospects in chiral resolution and chiral catalysis.
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Affiliation(s)
- Xuejiao Yang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Yuhe Shen
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Jiayu Liu
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Yuefei Wang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Wei Qi
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Rongxin Su
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Zhimin He
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China
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13
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Liang J, Liang J, Hao A, Xing P. Symmetry breaking-induced double-strand helices in H-bonded coassembly. NANOSCALE 2021; 13:12929-12937. [PMID: 34477776 DOI: 10.1039/d1nr02515e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Double-strand helical structures are important in information storage of biomacromolecules, while the artificial synthesis depends on chirality transfer from the molecular to supramolecular scale, and the synthesis through symmetry breaking has yet been accomplished. In this work, we present the multiple-constituent coassembly of a melamine derivative and an N-terminal aromatic amino acid into double helical nanoarchitectures via symmetry breaking. Multiple intramolecular H-bond formation between constituents played key roles in directing the formation of helical structures. Intertwining of single helices with identical helical parameters afforded double helical structures, benefiting from the uniformity and monodispersity of nanoarchitectures. With introduction of coded chiral amino acid derivatives as chiral sources, the handedness could be readily manipulated with exclusive correlation to the absolute chirality of amino acids. Molecular flexibility of the melamine derivative facilitates the propeller-shaped complex formation to afford helical columnar coassemblies and double helical structures. This work presents a rational control over the emergence and properties of double helical structures in multiple-constituent coassemblies through symmetry breaking, which provides an alternative method towards the synthesis of topological chiral composites and chiroptical materials.
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Affiliation(s)
- Juncong Liang
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People's Republic of China.
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14
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Abstract
AbstractThe generally accepted hypothesis to explain the origin of biological homochirality (that is to say, the fact that proteinogenic amino acids are left-handed, and carbohydrates right-handed, in all living beings) is to assume, in the course of prebiotic chemical evolution, the appearance of an initial enantiomeric excess in a set of chiral molecular entities by spontaneous mirror-symmetry breaking (SMSB), together with suitable amplification and replication mechanisms that overcome the thermodynamic drive to racemization. However, the achievement of SMSB in chemical reactions taking place in solution requires highly specific reaction networks showing nonlinear dynamics based on enantioselective autocatalysis, and examples of its experimental realization are very rare. On the other hand, emergence of net supramolecular chirality by SMSB in the self-assembly of achiral molecules has been seen to occur in several instances, and the chirality sign of the resulting supramolecular system can be controlled by the action of macroscopic chiral forces. These considerations led us to propose a new mechanism for the generation of net chirality in molecular systems, in which the SMSB takes place in the formation of chiral supramolecular dissipative structures from achiral monomers, leading to asymmetric imbalances in their composition that are subsequently transferred to a standard enantioselective catalytic reaction, dodging in this way the highly limiting requirement of finding suitable reactions in solution that show enantioselective autocatalysis. We propose the name ‘absolute asymmetric catalysis’ for this approach, in which an achiral monomer is converted into a nonracemic chiral aggregate that is generated with SMSB and that is catalytically active.Our aim in this Account is to present a step-by-step narrative of the conceptual and experimental development of this hitherto unregarded, but prebiotically plausible, mechanism for the emergence of net chirality in molecular reactions.1 Introduction: The Origin of Biological Homochirality and Spontaneous Mirror-Symmetry Breaking2 Experimental Chemical Models for Spontaneous Mirror-Symmetry Breaking: The Soai Reaction and Beyond3 Spontaneous Mirror-Symmetry Breaking in Supramolecular Chemistry: Plenty of Room at the Top4 Absolute Asymmetric Catalysis: An Alternative Mechanism for the Emergence of Net Chirality in Molecular Systems
5 Experimental Realization of Top-Down Chirality Transfer to the Molecular Level6 Conclusions and Outlook
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Affiliation(s)
- Joaquim Crusats
- Section of Organic Chemistry, Department of Inorganic and Organic Chemistry, University of Barcelona, Faculty of Chemistry
- Institute of Cosmos Science (IEE-ICC), Universitat de Barcelona
| | - Albert Moyano
- Section of Organic Chemistry, Department of Inorganic and Organic Chemistry, University of Barcelona, Faculty of Chemistry
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15
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Ion-pairing effects by organic anions on the supramolecular assembling kinetics of sulfonated porphyrins. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Wu F, Guo J, Huang Y, Liang K, Jin L, Li J, Deng X, Jiao R, Liu Y, Zhang J, Zhang W, Yu L. Plexcitonic Optical Chirality: Strong Exciton-Plasmon Coupling in Chiral J-Aggregate-Metal Nanoparticle Complexes. ACS NANO 2021; 15:2292-2300. [PMID: 33356158 DOI: 10.1021/acsnano.0c08274] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Understanding the unique characteristics of plexcitons, hybridized states resulting from the strong coupling between plasmons and excitons, is vital for both fundamental studies and practical applications in nano-optics. However, the research of plexcitons from the perspective of chiral optics has been rarely reported. Here, we experimentally investigate the optical chirality of plexcitonic systems consisting of composite metal nanoparticles and chiral J-aggregates in the strong coupling regime. Mode splitting and anticrossing behavior are observed in both the circular dichroism (CD) and extinction spectra of the hybrid nanosystems. A large mode splitting (at zero detuning) of up to 136 meV/214 meV in CD/extinction measurements confirms that the systems attain the strong coupling regime. This phenomenon indicates that the formation of plexcitons modifies not only the extinction but also the optical chirality of the hybrid systems. We develop a quasistatic theory to elucidate the chiral optical responses of hybrid systems. Furthermore, we propose and justify a criterion of strong plasmon-exciton interaction: the mode splitting in the CD spectra (at zero detuning) is larger than half of that in the extinction spectra. Our findings give a chiral perspective on the study of strong plasmon-exciton coupling and have potential applications in the chiral optical field.
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Affiliation(s)
- Fan Wu
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, 10 Xitucheng Road, Beijing 100876, China
| | - Jiaqi Guo
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, 10 Xitucheng Road, Beijing 100876, China
| | - Yuming Huang
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, 10 Xitucheng Road, Beijing 100876, China
| | - Kun Liang
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, 10 Xitucheng Road, Beijing 100876, China
| | - Lei Jin
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, 10 Xitucheng Road, Beijing 100876, China
| | - Junqiang Li
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, 10 Xitucheng Road, Beijing 100876, China
| | - Xuyan Deng
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, 10 Xitucheng Road, Beijing 100876, China
| | - Rongzhen Jiao
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, 10 Xitucheng Road, Beijing 100876, China
| | - Yumin Liu
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, 10 Xitucheng Road, Beijing 100876, China
| | - Jiasen Zhang
- State Key Laboratory for Mesoscopic Physics and Department of Physics, Peking University, Beijing 100871, China
| | - Wei Zhang
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - Li Yu
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, 10 Xitucheng Road, Beijing 100876, China
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17
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Castriciano MA, Cardillo S, Zagami R, Trapani M, Romeo A, Scolaro LM. Effects of the Mixing Protocol on the Self-Assembling Process of Water Soluble Porphyrins. Int J Mol Sci 2021; 22:ijms22020797. [PMID: 33466834 PMCID: PMC7830837 DOI: 10.3390/ijms22020797] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 12/19/2022] Open
Abstract
The hierarchical self-assembling kinetics of the porphyrin 5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrin (H2TPPS44−) into J-aggregates at high ionic strength under acidic conditions and eventually in the presence of an added chiral templating agent (tartrate) were investigated through UV/Vis spectroscopy, resonance light scattering, and circular dichroism (CD). The effect of changing the mixing order of the various components in the solution on the kinetic parameters and the expression of chirality on the final J-aggregates was evaluated. In this latter case, only when the chiral tartrate anion is premixed with the porphyrin, the resulting nano-architectures exhibit CD spectra that reflect the handedness of the chiral inducer. We discuss a general mechanistic scheme, with the involvement of ion pairs or dimers that offer an alternative pathway to the aggregation process.
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Affiliation(s)
- Maria Angela Castriciano
- CNR—ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (M.A.C.); (M.T.)
| | - Sergio Cardillo
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina and C.I.R.C.M.S.B V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (S.C.); (R.Z.)
| | - Roberto Zagami
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina and C.I.R.C.M.S.B V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (S.C.); (R.Z.)
| | - Mariachiara Trapani
- CNR—ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (M.A.C.); (M.T.)
| | - Andrea Romeo
- CNR—ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (M.A.C.); (M.T.)
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina and C.I.R.C.M.S.B V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (S.C.); (R.Z.)
- Correspondence: (A.R.); (L.M.S.); Tel.: +39-090-6765-711 (L.M.S.)
| | - Luigi Monsù Scolaro
- CNR—ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (M.A.C.); (M.T.)
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina and C.I.R.C.M.S.B V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (S.C.); (R.Z.)
- Correspondence: (A.R.); (L.M.S.); Tel.: +39-090-6765-711 (L.M.S.)
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18
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Manganaro N, Zagami R, Trapani M, Castriciano MA, Romeo A, Scolaro LM. Role of Cobalt(III) Cationic Complexes in the Self-Assembling Process of a Water Soluble Porphyrin. Int J Mol Sci 2020; 22:ijms22010039. [PMID: 33375184 PMCID: PMC7792976 DOI: 10.3390/ijms22010039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 12/18/2020] [Accepted: 12/20/2020] [Indexed: 12/26/2022] Open
Abstract
Under moderate acidic conditions, the cationic (+3) complexes ions tris(1,10-phenanthroline)cobalt(III), [Co(phen)3]3+, and hexamminecobalt(III), [Co(NH3)6]3+, efficiently promote the self-assembling process of the diacid 5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrin (H2TPPS4) into J-aggregates. The growth kinetics have been analyzed according to a well-established autocatalytic model, in which the rate determining step is the initial formation of a nucleus containing m porphyrin units (in the range 2–3), followed by a stage whose rate constant kc evolves as a power of time. The observed catalytic rate constants and the extent of J-aggregation increase on increasing the metal complex concentration, with the phen complex being the less active. The UV/Vis extinction spectra display quite broad envelops at the J-band, especially for the amino-complex, suggesting that electronic dipolar coupling between chromophores is operative in these species. The occurrence of spontaneous symmetry breaking has been revealed by circular dichroism and the measured dissymmetry g-factor decreases on increasing the aggregation rates. The role of these metal complexes on the growth and stabilization of porphyrin nano-assemblies is discussed in terms of the different degree of hydrophilicity and hydrogen bonding ability of the ligands present in the coordination sphere around the metal center.
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Affiliation(s)
- Nadia Manganaro
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina and C.I.R.C.M.S.B V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (N.M.); (A.R.)
| | - Roberto Zagami
- CNR—ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (R.Z.); (M.T.); (M.A.C.)
| | - Mariachiara Trapani
- CNR—ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (R.Z.); (M.T.); (M.A.C.)
| | - Maria Angela Castriciano
- CNR—ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (R.Z.); (M.T.); (M.A.C.)
| | - Andrea Romeo
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina and C.I.R.C.M.S.B V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (N.M.); (A.R.)
- CNR—ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (R.Z.); (M.T.); (M.A.C.)
| | - Luigi Monsù Scolaro
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina and C.I.R.C.M.S.B V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (N.M.); (A.R.)
- CNR—ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (R.Z.); (M.T.); (M.A.C.)
- Correspondence: ; Tel.: +39-090-6765711
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19
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Kinetic Investigation on Tetrakis(4-Sulfonatophenyl)Porphyrin J-Aggregates Formation Catalyzed by Cationic Metallo-Porphyrins. Molecules 2020; 25:molecules25235742. [PMID: 33291399 PMCID: PMC7731138 DOI: 10.3390/molecules25235742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 11/30/2020] [Accepted: 12/03/2020] [Indexed: 11/17/2022] Open
Abstract
Under mild acidic conditions, various metal derivatives of tetrakis(4-N-methylpyridinium)porphyrin (gold(III), AuT4; cobalt(III), CoT4; manganese(III), MnT4 and zinc(II), ZnT4) catalytically promote the supramolecular assembling process of the diacid 5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrin (H2TPPS4) into J-aggregates. The aggregation kinetics have been treated according to a well-established model that involves the initial formation of a critical nucleus containing m porphyrin units, followed by autocatalytic growth, in which the rate evolves as a power of time. An analysis of the extinction time traces allows to obtain the rate constants for the auto-catalyzed pathway, kc, and the number of porphyrins involved in the initial seeding. The aggregation kinetics have been investigated at fixed H2TPPS4 concentration as a function of the added metal derivatives MT4. The derived rate constants, kc, obey a rate law that is first order in [MT4] and depend on the specific nature of the catalyst in the order AuT4 > CoT4 > MnT4 > ZnT4. Both resonance light scattering (RLS) intensity and extinction in the aggregated samples increase on increasing [MT4]. With the exception of AuT4, the final aggregated samples obtained at the highest catalyst concentration exhibit a negative Cotton effect in the J-band region, evidencing the occurrence of spontaneous symmetry breaking. The role of the nature of the metal derivative in terms of overall charge and presence of axial groups will be discussed.
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20
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Stefanelli M, Savioli M, Zurlo F, Magna G, Belviso S, Marsico G, Superchi S, Venanzi M, Di Natale C, Paolesse R, Monti D. Porphyrins Through the Looking Glass: Spectroscopic and Mechanistic Insights in Supramolecular Chirogenesis of New Self-Assembled Porphyrin Derivatives. Front Chem 2020; 8:587842. [PMID: 33195087 PMCID: PMC7593786 DOI: 10.3389/fchem.2020.587842] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 09/09/2020] [Indexed: 12/12/2022] Open
Abstract
The solvent driven aggregation of porphyrin derivatives, covalently linked to a L- or D-prolinate enantiomer, results in the stereospecific formation of species featuring remarkable supramolecular chirality, as a consequence of reading and amplification of the stereochemical information stored in the proline-appended group. Spectroscopic, kinetic, and topographic SEM studies gave important information on the aggregation processes, and on the structures of the final chiral architectures. The results obtained may be the seeds for the construction of stereoselective sensors aiming at the detection, for example, of novel emergent pollutants from agrochemical, food, and pharmaceutical industry.
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Affiliation(s)
- Manuela Stefanelli
- Department of Science and Chemical Technologies, University of Rome "Tor Vergata", Rome, Italy
| | - Marco Savioli
- Department of Science and Chemical Technologies, University of Rome "Tor Vergata", Rome, Italy
| | - Francesca Zurlo
- Department of Science and Chemical Technologies, University of Rome "Tor Vergata", Rome, Italy
| | - Gabriele Magna
- Department of Science and Chemical Technologies, University of Rome "Tor Vergata", Rome, Italy
| | - Sandra Belviso
- Department of Sciences, University of Basilicata, Potenza, Italy
| | - Giulia Marsico
- Department of Sciences, University of Basilicata, Potenza, Italy
| | - Stefano Superchi
- Department of Sciences, University of Basilicata, Potenza, Italy
| | - Mariano Venanzi
- Department of Science and Chemical Technologies, University of Rome "Tor Vergata", Rome, Italy
| | - Corrado Di Natale
- Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy
| | - Roberto Paolesse
- Department of Science and Chemical Technologies, University of Rome "Tor Vergata", Rome, Italy
| | - Donato Monti
- Department of Science and Chemical Technologies, University of Rome "Tor Vergata", Rome, Italy.,Department of Chemistry, University La Sapienza, Rome, Italy
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21
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Serusi L, Soddu F, Cuccu F, Peretti G, Luridiana A, Secci F, Caboni P, Aitken DJ, Frongia A. Synthesis of α‐Aminocyclopropyl Ketones and 2‐Substituted Benzoimidazoles from 2‐Hydroxycyclobutanones and Aryl Amines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Lorenzo Serusi
- Dipartimento di Scienze Chimiche e Geologiche Università degli Studi di Cagliari Complesso Universitario di Monserrato S.S. 554, Bivio per Sestu I-09042 Monserrato, Cagliari Italy
| | - Francesco Soddu
- Dipartimento di Scienze Chimiche e Geologiche Università degli Studi di Cagliari Complesso Universitario di Monserrato S.S. 554, Bivio per Sestu I-09042 Monserrato, Cagliari Italy
| | - Federico Cuccu
- Dipartimento di Scienze Chimiche e Geologiche Università degli Studi di Cagliari Complesso Universitario di Monserrato S.S. 554, Bivio per Sestu I-09042 Monserrato, Cagliari Italy
| | - Giuseppe Peretti
- Dipartimento di Scienze Chimiche e Geologiche Università degli Studi di Cagliari Complesso Universitario di Monserrato S.S. 554, Bivio per Sestu I-09042 Monserrato, Cagliari Italy
| | - Alberto Luridiana
- Dipartimento di Scienze Chimiche e Geologiche Università degli Studi di Cagliari Complesso Universitario di Monserrato S.S. 554, Bivio per Sestu I-09042 Monserrato, Cagliari Italy
| | - Francesco Secci
- Dipartimento di Scienze Chimiche e Geologiche Università degli Studi di Cagliari Complesso Universitario di Monserrato S.S. 554, Bivio per Sestu I-09042 Monserrato, Cagliari Italy
| | - Pierluigi Caboni
- Dipartimento di Scienze della Vita e dell'Ambiente Università degli Studi di Cagliari Via Ospedale 72 09124 Cagliari Italy
| | - David J. Aitken
- Université Paris Saclay, CNRS, ICMMO, CP3A Organic Synthesis Group, Bât 420 rue du Doyen Georges Poitou 91405 Orsay cedex France
| | - Angelo Frongia
- Dipartimento di Scienze Chimiche e Geologiche Università degli Studi di Cagliari Complesso Universitario di Monserrato S.S. 554, Bivio per Sestu I-09042 Monserrato, Cagliari Italy
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22
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Wang F, Gan F, Shen C, Qiu H. Amplifiable Symmetry Breaking in Aggregates of Vibrating Helical Molecules. J Am Chem Soc 2020; 142:16167-16172. [DOI: 10.1021/jacs.0c06932] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fang Wang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Fuwei Gan
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chengshuo Shen
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Huibin Qiu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
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23
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Carbone A, Castriciano MA, Monsù Scolaro L, Gatto I. Novel Polymeric Composite TPPS/s-PEEK Membranes for Low Relative Humidity PEFC. Polymers (Basel) 2020; 12:E1431. [PMID: 32604866 PMCID: PMC7361698 DOI: 10.3390/polym12061431] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/12/2020] [Accepted: 06/24/2020] [Indexed: 11/16/2022] Open
Abstract
Composite membranes based on different wt percentages of meso-tetrakis-(4-sulfonatophenyl)porphyrin (TPPS) embedded in a medium sulfonation degree (50%) sulfonated poly(etheretherketone) (s-PEEK) were investigated. The successful introduction of porphyrin into the membranes and the characterization of its different species into the membrane ionic domains were carried out by spectroscopic techniques. Moreover, the effect of TPPS arrangement was investigated in terms of water retention, proton conductivity and fuel cell performance at low relative humidity (RH). It was found that the introduction of this porphyrin induces a variation of the chemical-physical parameters, such as ion exchange capacity (IEC), water up-take (Wup %) λ and proton concentration ([H+]), attributable to the interactions that occur between the sulfonic groups of the polymer and the nitrogen sites of TPPS. The TPPS, in its J-aggregated form, actively participates in the proton conduction mechanism, also maintaining the adequate water content in more drastic conditions (80 °C and 50% RH). A maximum power density value of 462 mW cm-2 was obtained for the s-PEEK membrane, with a 0.77 wt % content of TPPS. This evidence suggests that the presence of J-aggregates in the proton conduction channels maintains a good hydration, even if a drastic reduction of the RH of the reactant gases occurs, preventing the membrane from a dry-out effect.
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Affiliation(s)
| | - Maria Angela Castriciano
- CNR-ISMN, c/o Dipartimento di Scienze Chimiche Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy;
| | - Luigi Monsù Scolaro
- CNR-ISMN, c/o Dipartimento di Scienze Chimiche Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy;
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy
| | - Irene Gatto
- CNR-ITAE Via S. Lucia Sopra Contesse 5, 98126 Messina, Italy;
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Occhiuto IG, Castriciano MA, Trapani M, Zagami R, Romeo A, Pasternack RF, Monsù Scolaro L. Controlling J-Aggregates Formation and Chirality Induction through Demetallation of a Zinc(II) Water Soluble Porphyrin. Int J Mol Sci 2020; 21:ijms21114001. [PMID: 32503280 PMCID: PMC7313071 DOI: 10.3390/ijms21114001] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/01/2020] [Accepted: 06/01/2020] [Indexed: 12/13/2022] Open
Abstract
Under acidic conditions and at high ionic strength, the zinc cation is removed from its metal complex with 5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrin (TPPS4) thus leading to the diacid free porphyrin, that subsequently self-organize into J-aggregates. The kinetics of the demetallation step and the successive supramolecular assembly formation have been investigated as a function of pH and ionic strength (controlled by adding ZnSO4). The demetallation kinetics obey to a rate law that is first order in [ZnTPPS4] and second order in [H+], according to literature, with k2 = 5.5 ± 0.4 M−2 s−1 at 298 K (IS = 0.6 M, ZnSO4). The aggregation process has been modeled according to an autocatalytic growth, where after the formation of a starting seed containing m porphyrin units, the rate evolves as a power of time. A complete analysis of the extinction time traces at various wavelengths allows extraction of the relevant kinetic parameters, showing that a trimer or tetramer should be involved in the rate-determining step of the aggregation. The extinction spectra of the J-aggregates evidence quite broad bands, suggesting an electronic coupling mechanism different to the usual Frenkel exciton coupling. Resonance light scattering intensity in the aggregated samples increases with increasing both [H+] and [ZnSO4]. Symmetry breaking occurs in these samples and the J-aggregates show circular dichroism spectra with unusual bands. The asymmetry g-factor decreases in its absolute value with increasing the catalytic rate kc, nulling and eventually switching the Cotton effect from negative to positive. Some inferences on the role exerted by zinc cations on the kinetics and structural features of these nanostructures have been discussed.
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Affiliation(s)
- Ilaria Giuseppina Occhiuto
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina and C.I.R.C.M.S.B V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy;
| | - Maria Angela Castriciano
- CNR-ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (M.T.); (R.Z.)
- Correspondence: (M.A.C.); (A.R.); (L.M.S.); Tel.: +39-090-6765711 (L.M.S.)
| | - Mariachiara Trapani
- CNR-ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (M.T.); (R.Z.)
| | - Roberto Zagami
- CNR-ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (M.T.); (R.Z.)
| | - Andrea Romeo
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina and C.I.R.C.M.S.B V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy;
- CNR-ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (M.T.); (R.Z.)
- Correspondence: (M.A.C.); (A.R.); (L.M.S.); Tel.: +39-090-6765711 (L.M.S.)
| | - Robert F. Pasternack
- Department of Chemistry, Swarthmore College, 500 College Avenue, Swarthmore, PA 19081, USA;
| | - Luigi Monsù Scolaro
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina and C.I.R.C.M.S.B V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy;
- CNR-ISMN Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D’Alcontres, 31-98166 Messina, Italy; (M.T.); (R.Z.)
- Correspondence: (M.A.C.); (A.R.); (L.M.S.); Tel.: +39-090-6765711 (L.M.S.)
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Fazylova V, Shevtsev N, Mikhailov S, Kim G, Ostroushko A, Grzhegorzhevskii K. Fundamental Aspects of Xanthene Dye Aggregation on the Surfaces of Nanocluster Polyoxometalates: H- to J-Aggregate Switching. Chemistry 2020; 26:5685-5693. [PMID: 32073183 DOI: 10.1002/chem.201905781] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/12/2020] [Indexed: 11/10/2022]
Abstract
The induced aggregation of the xanthene dye rhodamine B (RhB) on metal oxide centers belonging to the highly symmetric surfaces of precise nanoscale templates with Keplerate (Mo132 ) or toroidal (Mo138 ) structures has been studied. With the joint use of the Langmuir isotherm and full Stern-Volmer models, the thermodynamic reasons for dye adsorption on the nanocluster surface, such as a mixture of monomer, H-aggregate (H-dimer), and J-aggregate forms (which can coexist or switch one into another under the exact conditions), were established: this was shown through UV/Vis and fluorescence spectroscopies. By using the framework of the exciton model, it is shown that the angle (α) between the transition dipole moments of RhB is very sensitive to surface strain inside the dye sub-monolayer. As a result, it is possible to switch from H- to J-aggregates by the post-functionalization of polyoxometalate (POM)-RhB associates by the surfactant bilayer shell, which allows the surface strain to grow. Recommendations are provided for managing the appearance of H- or J-aggregates on metal oxide (or polyelectrolyte) surfaces during photovoltaic or bioimaging applications.
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Affiliation(s)
- Victoria Fazylova
- Institute of Natural Sciences and Mathematics, Ural Federal University, 19 Mira St., 620002, Ekaterinburg, Russia
| | - Nikita Shevtsev
- Institute of Natural Sciences and Mathematics, Ural Federal University, 19 Mira St., 620002, Ekaterinburg, Russia
| | - Sergey Mikhailov
- Institute of Natural Sciences and Mathematics, Ural Federal University, 19 Mira St., 620002, Ekaterinburg, Russia
| | - Grigoriy Kim
- Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 Akademicheskaya St., 620990, Ekaterinburg, Russia
| | - Alexander Ostroushko
- Institute of Natural Sciences and Mathematics, Ural Federal University, 19 Mira St., 620002, Ekaterinburg, Russia
| | - Kirill Grzhegorzhevskii
- Institute of Natural Sciences and Mathematics, Ural Federal University, 19 Mira St., 620002, Ekaterinburg, Russia
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Trapani M, Mazzaglia A, Piperno A, Cordaro A, Zagami R, Castriciano MA, Romeo A, Monsù Scolaro L. Novel Nanohybrids Based on Supramolecular Assemblies of Meso-tetrakis-(4-sulfonatophenyl) Porphyrin J-aggregates and Amine-Functionalized Carbon Nanotubes. NANOMATERIALS 2020; 10:nano10040669. [PMID: 32252418 PMCID: PMC7221796 DOI: 10.3390/nano10040669] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/14/2020] [Accepted: 03/26/2020] [Indexed: 12/12/2022]
Abstract
The ability of multiwalled carbon nanotubes (MWCNTs) covalently functionalized with polyamine chains of different length (ethylenediamine, EDA and tetraethylenepentamine, EPA) to induce the J-aggregation of meso-tetrakis(4-sulfonatophenyl)porphyrin (TPPS) was investigated in different experimental conditions. Under mild acidic conditions, protonated amino groups allow for the assembly by electrostatic interaction with the diacid form of TPPS, leading to hybrid nanomaterials. The presence of only one pendant amino group for a chain in EDA does not lead to any aggregation, whereas EPA (with four amine groups for chain) is effective in inducing J-aggregation using different mixing protocols. These nanohybrids have been characterized through UV/Vis extinction, fluorescence emission, resonance light scattering and circular dichroism spectroscopy. Their morphology and chemical composition have been elucidated through transmission electron microscopy (TEM) and scanning transmission electron microscopy (STEM). TEM and STEM analysis evidence single or bundles of MWCNTs in contact with TPPS J-aggregates nanotubes. The nanohybrids are quite stable for days, even in aqueous solutions mimicking physiological medium (NaCl 0.15 M). This property, together with their peculiar optical features in the therapeutic window of visible spectrum, make them potentially useful for biomedical applications.
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Affiliation(s)
- Mariachiara Trapani
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V. le F. Stagno D’Alcontres 31, 98166 Messina, Italy; (M.T.); (A.C.); (R.Z.); (A.R.); (L.M.S.)
| | - Antonino Mazzaglia
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V. le F. Stagno D’Alcontres 31, 98166 Messina, Italy; (M.T.); (A.C.); (R.Z.); (A.R.); (L.M.S.)
- Correspondence: (A.M.); (M.A.C.)
| | - Anna Piperno
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V. le F. Stagno D’Alcontres 31, 98166 Messina, Italy;
- Consorzio Interuniversitario Nazionale di Ricerca in Metodologie e Processi Innovativi di Sintesi, C.I.N.M.P.I.S., Unità Operativa dell’Università di Messina, V. le F. Stagno D’Alcontres, 3198166 Messina, Italy
| | - Annalaura Cordaro
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V. le F. Stagno D’Alcontres 31, 98166 Messina, Italy; (M.T.); (A.C.); (R.Z.); (A.R.); (L.M.S.)
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V. le F. Stagno D’Alcontres 31, 98166 Messina, Italy;
| | - Roberto Zagami
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V. le F. Stagno D’Alcontres 31, 98166 Messina, Italy; (M.T.); (A.C.); (R.Z.); (A.R.); (L.M.S.)
| | - Maria Angela Castriciano
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V. le F. Stagno D’Alcontres 31, 98166 Messina, Italy; (M.T.); (A.C.); (R.Z.); (A.R.); (L.M.S.)
- Correspondence: (A.M.); (M.A.C.)
| | - Andrea Romeo
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V. le F. Stagno D’Alcontres 31, 98166 Messina, Italy; (M.T.); (A.C.); (R.Z.); (A.R.); (L.M.S.)
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V. le F. Stagno D’Alcontres 31, 98166 Messina, Italy;
- Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici, C.I.R.C.M.S.B, Unità Operativa dell’Università di Messina, V. le F. Stagno D’Alcontres, 31, 98166 Messina, Italy
| | - Luigi Monsù Scolaro
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V. le F. Stagno D’Alcontres 31, 98166 Messina, Italy; (M.T.); (A.C.); (R.Z.); (A.R.); (L.M.S.)
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, V. le F. Stagno D’Alcontres 31, 98166 Messina, Italy;
- Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici, C.I.R.C.M.S.B, Unità Operativa dell’Università di Messina, V. le F. Stagno D’Alcontres, 31, 98166 Messina, Italy
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Li Y, Liu C, Bai X, Tian F, Hu G, Sun J. Enantiomorphic Microvortex‐Enabled Supramolecular Sensing of Racemic Amino Acids by Using Achiral Building Blocks. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913882] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yike Li
- CAS Key Laboratory of Standardization and Measurement for NanotechnologyCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100149 China
| | - Chao Liu
- CAS Key Laboratory of Standardization and Measurement for NanotechnologyCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100149 China
| | - Xuan Bai
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100149 China
- The State Key Laboratory of Nonlinear MechanicsInstitute of MechanicsChinese Academy of Sciences Beijing 100190 China
| | - Fei Tian
- CAS Key Laboratory of Standardization and Measurement for NanotechnologyCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100149 China
| | - Guoqing Hu
- Department of Engineering MechanicsZhejiang University Hangzhou 310027 China
| | - Jiashu Sun
- CAS Key Laboratory of Standardization and Measurement for NanotechnologyCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100149 China
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Li Y, Liu C, Bai X, Tian F, Hu G, Sun J. Enantiomorphic Microvortex‐Enabled Supramolecular Sensing of Racemic Amino Acids by Using Achiral Building Blocks. Angew Chem Int Ed Engl 2020; 59:3486-3490. [DOI: 10.1002/anie.201913882] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/04/2019] [Indexed: 01/04/2023]
Affiliation(s)
- Yike Li
- CAS Key Laboratory of Standardization and Measurement for NanotechnologyCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100149 China
| | - Chao Liu
- CAS Key Laboratory of Standardization and Measurement for NanotechnologyCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100149 China
| | - Xuan Bai
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100149 China
- The State Key Laboratory of Nonlinear MechanicsInstitute of MechanicsChinese Academy of Sciences Beijing 100190 China
| | - Fei Tian
- CAS Key Laboratory of Standardization and Measurement for NanotechnologyCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100149 China
| | - Guoqing Hu
- Department of Engineering MechanicsZhejiang University Hangzhou 310027 China
| | - Jiashu Sun
- CAS Key Laboratory of Standardization and Measurement for NanotechnologyCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 China
- School of Future TechnologyUniversity of Chinese Academy of Sciences Beijing 100149 China
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Castriciano MA, Trapani M, Romeo A, Depalo N, Rizzi F, Fanizza E, Patanè S, Monsù Scolaro L. Influence of Magnetic Micelles on Assembly and Deposition of Porphyrin J-Aggregates. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E187. [PMID: 31973230 PMCID: PMC7074871 DOI: 10.3390/nano10020187] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/14/2020] [Accepted: 01/16/2020] [Indexed: 12/13/2022]
Abstract
Clusters of superparamagnetic iron oxide nanoparticles (SPIONs) have been incorporated into the hydrophobic core of polyethylene glycol (PEG)-modified phospholipid micelles. Two different PEG-phospholipids have been selected to guarantee water solubility and provide an external corona, bearing neutral (SPIONs@PEG-micelles) or positively charged amino groups (SPIONs@NH2-PEG-micelles). Under acidic conditions and with specific mixing protocols (porphyrin first, PF, or porphyrin last, PL), the water-soluble 5,10,15,20-tetrakis-(4-sulfonatophenyl)-porphyrin (TPPS) forms chiral J-aggregates, and in the presence of the two different types of magnetic micelles, an increase of the aggregation rates has been generally observed. In the case of the neutral SPIONs@PEG-micelles, PL protocol affords a stable nanosystem, whereas PF protocol is effective with the charged SPIONs@NH2-PEG-micelles. In both cases, chiral J-aggregates embedded into the magnetic micelles (TPPS@SPIONs@micelles) have been characterized in solution through UV/vis absorption and circular/linear dichroism. An external magnetic field allows depositing films of the TPPS@SPIONs@micelles that retain their chiroptical properties and exhibit a high degree of alignment, which is also confirmed by atomic force microscopy.
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Affiliation(s)
- Maria Angela Castriciano
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina V.le F. Stagno D’Alcontres, 31 98166 Messina, Italy; (M.T.); (A.R.)
| | - Mariachiara Trapani
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina V.le F. Stagno D’Alcontres, 31 98166 Messina, Italy; (M.T.); (A.R.)
| | - Andrea Romeo
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina V.le F. Stagno D’Alcontres, 31 98166 Messina, Italy; (M.T.); (A.R.)
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali and C.I.R.C.M.S.B., University of Messina V.le F. Stagno D’Alcontres, 31 98166 Messina, Italy
| | - Nicoletta Depalo
- CNR-IPCF, Istituto Per i Processi Chimico-Fisici, 70124 Bari, Italy; (N.D.); (F.R.); (E.F.)
| | - Federica Rizzi
- CNR-IPCF, Istituto Per i Processi Chimico-Fisici, 70124 Bari, Italy; (N.D.); (F.R.); (E.F.)
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70125 Bari, Italy
| | - Elisabetta Fanizza
- CNR-IPCF, Istituto Per i Processi Chimico-Fisici, 70124 Bari, Italy; (N.D.); (F.R.); (E.F.)
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70125 Bari, Italy
| | - Salvatore Patanè
- Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, University of Messina V.le F. Stagno D’Alcontres, 31 98166 Messina, Italy;
| | - Luigi Monsù Scolaro
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina V.le F. Stagno D’Alcontres, 31 98166 Messina, Italy; (M.T.); (A.R.)
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali and C.I.R.C.M.S.B., University of Messina V.le F. Stagno D’Alcontres, 31 98166 Messina, Italy
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Samperi M, Pérez-García L, Amabilino DB. Quantification of energy of activation to supramolecular nanofibre formation reveals enthalpic and entropic effects and morphological consequence. Chem Sci 2019; 10:10256-10266. [PMID: 32015821 PMCID: PMC6968731 DOI: 10.1039/c9sc03280k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 09/16/2019] [Indexed: 01/17/2023] Open
Abstract
We show a self-assembly process leading to fibres from a system that starts far from equilibrium because of fast solvent - anti-solvent mixing and analyse the activation energies associated with the aggregation. It is in some ways reminiscent of diverse natural fibrous materials that have kinetic behaviour dominated by a rate limiting induction period followed by rapid growth. A full thermodynamic rationale for these systems and related synthetic ones is required for a full understanding of the driving force of their non-equilibrium self-assembly. Here we determine quantitatively the enthalpy and entropy of activation for the processes leading to the growth of fibres of this type, that contrasts with analysis of other systems where final energetic states are analysed. A dramatic effect is revealed whereby comparatively small changes in temperature or solvent composition (the ratio of water to ethanol) lead to alterations in the relative importance of enthalpy and entropy of activation and massive changes in the speed of fibre formation. The characteristics of the kinetic model adopted show a correlation with the fibre morphology of the self-assembled materials, which are isostructural according to diffraction experiments: the control of growth can lead to fibres only two bilayers thick. The crossover in behaviour is characteristic of the solvent mixture and the thermodynamic analysis points to the origins of this effect where different assembly routes are viable under only marginally different conditions.
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Affiliation(s)
- Mario Samperi
- School of Pharmacy , University of Nottingham , University Park , NG7 2RD , UK
- The GSK Carbon Neutral Laboratories for Sustainable Chemistry , University of Nottingham , Triumph Road , NG7 2TU , UK .
- School of Chemistry , University of Nottingham , University Park , NG7 2RD , UK
| | - Lluïsa Pérez-García
- School of Pharmacy , University of Nottingham , University Park , NG7 2RD , UK
| | - David B Amabilino
- The GSK Carbon Neutral Laboratories for Sustainable Chemistry , University of Nottingham , Triumph Road , NG7 2TU , UK .
- School of Chemistry , University of Nottingham , University Park , NG7 2RD , UK
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Magna G, Monti D, Di Natale C, Paolesse R, Stefanelli M. The Assembly of Porphyrin Systems in Well-Defined Nanostructures: An Update. Molecules 2019; 24:E4307. [PMID: 31779097 PMCID: PMC6930562 DOI: 10.3390/molecules24234307] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/15/2019] [Accepted: 11/21/2019] [Indexed: 12/26/2022] Open
Abstract
The interest in assembling porphyrin derivatives is widespread and is accounted by the impressive impact of these suprastructures of controlled size and shapes in many applications from nanomedicine and sensors to photocatalysis and optoelectronics. The massive use of porphyrin dyes as molecular building blocks of functional materials at different length scales relies on the interdependent pair properties, consisting of their chemical stability/synthetic versatility and their quite unique physicochemical properties. Remarkably, the driven spatial arrangement of these platforms in well-defined suprastructures can synergically amplify the already excellent properties of the individual monomers, improving conjugation and enlarging the intensity of the absorption range of visible light, or forming an internal electric field exploitable in light-harvesting and charge-and energy-transport processes. The countless potentialities offered by these systems means that self-assembly concepts and tools are constantly explored, as confirmed by the significant number of published articles related to porphyrin assemblies in the 2015-2019 period, which is the focus of this review.
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Affiliation(s)
- Gabriele Magna
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, via della Ricerca Scientifica, 1; 00133 Rome, Italy; (G.M.); (D.M.); (R.P.)
| | - Donato Monti
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, via della Ricerca Scientifica, 1; 00133 Rome, Italy; (G.M.); (D.M.); (R.P.)
| | - Corrado Di Natale
- Dipartimento di Ingegneria Elettronica, Università di Roma Tor Vergata, via del Politecnico, 1; 00134 Roma, Italy;
| | - Roberto Paolesse
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, via della Ricerca Scientifica, 1; 00133 Rome, Italy; (G.M.); (D.M.); (R.P.)
| | - Manuela Stefanelli
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, via della Ricerca Scientifica, 1; 00133 Rome, Italy; (G.M.); (D.M.); (R.P.)
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Thorpe SL, Snyder GN, Mammana A. Spectroscopic study of porphyrin self-assembly: Role of pH, time, and chiral template. Chirality 2019; 32:5-16. [PMID: 31713271 DOI: 10.1002/chir.23140] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/23/2019] [Accepted: 10/03/2019] [Indexed: 01/17/2023]
Abstract
In this study, we performed an ultraviolet-visible (UV-Vis) and circular dichroism (CD) spectroscopic analysis of the binary and ternary supramolecular structures formed by self-assembling the following three water-soluble porphyrins with and without a chiral template: the negatively charged, meso-Tetra(4-sulfonatophenyl) porphine (H2 TPPS4- ); the positively charged meso-trans-(di(N-methyl-4-pyridyl)diphenyl) porphine (trans-DmPyDPP) and meso-cis-(di(N-methyl-4-pyridyl)diphenyl) porphine (cis-DmPyDPP). Polyglutamic acid (both L and D enantiomers) was selected as the chiral template due to its ability to change secondary structure with pH. The propensity for the porphyrins to show an induced CD in the presence of polyglutamic acid is demonstrated. The induced chirality of all supramolecular structures was found to depend on the pH of the solution, the chirality of the polymer, and the order of addition of the positively and negatively charged porphyrins (for ternary complexes). Of particular interest is that the interaction of H2 TPPS4- with the chiral scaffold seems to undergo a dynamic rearrangement of the supramolecular structure as evident from the change in the CD spectrum over time. Moreover, experiments with ternary complexes suggest that the preferential interaction of trans-DmPyDPP with the random coil of the polymer shows promise as a sensor of protein secondary structure.
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Affiliation(s)
| | | | - Angela Mammana
- Department of Chemistry, University of Dayton, Dayton, Ohio
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33
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Wang Y, Sun Y, Shi P, Sartin MM, Lin X, Zhang P, Fang H, Peng P, Tian Z, Cao X. Chaperone-like chiral cages for catalyzing enantio-selective supramolecular polymerization. Chem Sci 2019; 10:8076-8082. [PMID: 31908753 PMCID: PMC6910136 DOI: 10.1039/c9sc02412c] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 07/29/2019] [Indexed: 01/02/2023] Open
Abstract
Chiral organic cages can assist enantio-selective supramolecular polymerization through a catalyzed assembly (catassembly) strategy, like chaperones assist the assembly of biomolecules.
Cage catalysis has emerged as an important approach for mimicking enzymatic reactions by increasing the reaction rate and/or product selectivity of various types of covalent reactions. Here, we extend the catalytic application of cage compounds to the field of non-covalent molecular assembly. Acid-stable chiral imine cages are found to catalyze the supramolecular polymerization of porphyrins with an accelerated assembling rate and increased product enantioselectivity. Because the imine cages have a stronger interaction with porphyrin monomers and a weaker interaction with porphyrin assemblies, they can fully automatically detach from the assembled products without being consumed during the catalytic process. We reveal the kinetics of the auto-detachment of cages and the chirality growth of the assemblies using spectroscopic characterization studies. We find that the passivation groups attached to the cages are important for maintaining the structural stability of the cages during catalyzed assembly, and that the steric geometries of the cages can profoundly affect the efficiency of chiral regulation. This strategy demonstrates a new type of catalytic application of cage compounds in the field of molecular assembly, and paves the way to controlling supramolecular polymerization through a catalytic pathway.
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Affiliation(s)
- Yu Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces , Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) , Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Yibin Sun
- State Key Laboratory of Physical Chemistry of Solid Surfaces , Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) , Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Peichen Shi
- State Key Laboratory of Physical Chemistry of Solid Surfaces , Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) , Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Matthew M Sartin
- State Key Laboratory of Physical Chemistry of Solid Surfaces , Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) , Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Xujing Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces , Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) , Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Pei Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces , Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) , Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Hongxun Fang
- State Key Laboratory of Physical Chemistry of Solid Surfaces , Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) , Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Pixian Peng
- State Key Laboratory of Physical Chemistry of Solid Surfaces , Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) , Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Zhongqun Tian
- State Key Laboratory of Physical Chemistry of Solid Surfaces , Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) , Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Xiaoyu Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces , Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) , Department of Chemistry , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China.,Key Laboratory of Chemical Biology of Fujian Province , Xiamen University , Xiamen 361005 , China . ; ; Tel: +86 592 2185862
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Abstract
The origin of biological homochirality, e.g., life selects the L-amino acids and D-sugar as molecular component, still remains a big mystery. It is suggested that mirror symmetry breaking plays an important role. Recent researches show that symmetry breaking can also occur at a supramolecular level, where the non-covalent bond was crucial. In these systems, equal or unequal amount of the enantiomeric nanoassemblies could be formed from achiral molecules. In this paper, we presented a brief overview regarding the symmetry breaking from dispersed system to gels, solids, and at interfaces. Then we discuss the rational manipulation of supramolecular chirality on how to induce and control the homochirality in the self-assembly system. Those physical control methods, such as Viedma ripening, hydrodynamic macro- and micro-vortex, superchiral light, and the combination of these technologies, are specifically discussed. It is hoped that the symmetry breaking at a supramolecular level could provide useful insights into the understanding of natural homochirality and further designing as well as controlling of functional chiral materials.
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35
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Invertion and methylation of pyrrole ring in tetrasulfophenylporphyrin: basicity, aggregation properties, chirality. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.12.105] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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36
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Yang Z, Pu G, Ning X, Wu Y, Zhang Z, Shan D, Lu X. J-Aggregates of zinc tetraphenylporphyrin: a new pathway to excellent electrochemiluminescence emitters. Phys Chem Chem Phys 2019; 21:10614-10620. [DOI: 10.1039/c9cp01278h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This work provides a novel strategy for developing ECL emitters via exploring the electrochemiluminescence of H- and J-aggregates for the first time.
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Affiliation(s)
- Zhaofan Yang
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou 730070
- P. R. China
| | - Guiqiang Pu
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou 730070
- P. R. China
| | - Xingming Ning
- Tianjin Key Laboratory of Molecular Optoelectronic
- Department of Chemistry
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Yali Wu
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou 730070
- P. R. China
| | - Zhen Zhang
- Tianjin Key Laboratory of Molecular Optoelectronic
- Department of Chemistry
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Duoliang Shan
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou 730070
- P. R. China
| | - Xiaoquan Lu
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou 730070
- P. R. China
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37
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Li Y, Wu Z, Ling Z, Chen H, Zhang W. Mechanistic study of the solvent-controlled Pd(ii)-catalyzed chemoselective intermolecular 1,2-aminooxygenation and 1,2-oxyamination of conjugated dienes. Org Chem Front 2019. [DOI: 10.1039/c8qo01288a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The different coordination modes in MeCN and DMSO solvents could clarify the origin of chemoselectivity.
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Affiliation(s)
- Yunyi Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- P.R. China
| | - Zhengxing Wu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- P.R. China
| | - Zheng Ling
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- P.R. China
| | - Hongjin Chen
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- P.R. China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- P.R. China
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38
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Trapani M, Occhiuto IG, Zagami R, De Luca G, Castriciano MA, Romeo A, Scolaro LM, Pasternack RF. Mechanism for Copper(II)-Mediated Disaggregation of a Porphyrin J-Aggregate. ACS OMEGA 2018; 3:18843-18848. [PMID: 31458447 PMCID: PMC6643757 DOI: 10.1021/acsomega.8b02913] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 12/19/2018] [Indexed: 05/27/2023]
Abstract
J-aggregates of anionic meso-tetrakis(4-sulfonatophenyl)porphyrin form at intermediate pH (2.3-3.1) in the presence of NiSO4 or ZnSO4 (ionic strength, I.S. = 3.2 M). These aggregates convert to monomeric porphyrin units via metallation with copper(II) ions. The kinetics for the disassembly process, as monitored by UV/vis spectroscopy, exhibits zeroth-order behavior. The observed zeroth-order rate constants show a two-term dependence on copper(II) ion concentrations: linear and second order. Also observed is an inverse dependence on hydrogen ion concentration. Activation parameters have been determined for the disassembly process leading to ΔH ≠ = (+163 ± 15) kJ·mol-1 and ΔS ≠ = (+136 ± 11) J·K-1. A mechanism is proposed in which copper(II) cation is in pre-equilibrium with a reactive site at the rim of the J-aggregate. An intermediate copper species is thus formed that eventually leads to the final metallated porphyrin either through an assisted attack of a second metal ion or through a direct insertion of the metal cation into the macrocycle core.
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Affiliation(s)
- Mariachiara Trapani
- CNR-ISMN, Istituto
per lo Studio dei Materiali Nanostrutturati, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche
ad Ambientali, 98166 V.le F. Stagno D’Alcontres 31, Messina, Italy
| | - Ilaria G. Occhiuto
- Dipartimento di
Scienze Chimiche, Biologiche, Farmaceutiche ad Ambientali, and C.I.R.C.M.S.B., University of Messina, V.le F. Stagno D’Alcontres 31, Vill. S.
Agata, 98166 Messina, Italy
| | - Roberto Zagami
- CNR-ISMN, Istituto
per lo Studio dei Materiali Nanostrutturati, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche
ad Ambientali, 98166 V.le F. Stagno D’Alcontres 31, Messina, Italy
| | - Giovanna De Luca
- Dipartimento di
Scienze Chimiche, Biologiche, Farmaceutiche ad Ambientali, and C.I.R.C.M.S.B., University of Messina, V.le F. Stagno D’Alcontres 31, Vill. S.
Agata, 98166 Messina, Italy
- CNR-IPCB, Istituto dei Polimeri, Compositi
e Biomateriali, P.le
Enrico Fermi 1, 80055 Portici, Naples, Italy
| | - Maria A. Castriciano
- CNR-ISMN, Istituto
per lo Studio dei Materiali Nanostrutturati, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche
ad Ambientali, 98166 V.le F. Stagno D’Alcontres 31, Messina, Italy
| | - Andrea Romeo
- CNR-ISMN, Istituto
per lo Studio dei Materiali Nanostrutturati, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche
ad Ambientali, 98166 V.le F. Stagno D’Alcontres 31, Messina, Italy
- Dipartimento di
Scienze Chimiche, Biologiche, Farmaceutiche ad Ambientali, and C.I.R.C.M.S.B., University of Messina, V.le F. Stagno D’Alcontres 31, Vill. S.
Agata, 98166 Messina, Italy
| | - Luigi Monsù Scolaro
- CNR-ISMN, Istituto
per lo Studio dei Materiali Nanostrutturati, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche
ad Ambientali, 98166 V.le F. Stagno D’Alcontres 31, Messina, Italy
- Dipartimento di
Scienze Chimiche, Biologiche, Farmaceutiche ad Ambientali, and C.I.R.C.M.S.B., University of Messina, V.le F. Stagno D’Alcontres 31, Vill. S.
Agata, 98166 Messina, Italy
| | - Robert F. Pasternack
- Department of Chemistry & Biochemistry, Swarthmore College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
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39
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Randazzo R, Gaeta M, Gangemi CMA, Fragalà ME, Purrello R, D'Urso A. Chiral Recognition of L- and D- Amino Acid by Porphyrin Supramolecular Aggregates. Molecules 2018; 24:molecules24010084. [PMID: 30591641 PMCID: PMC6337589 DOI: 10.3390/molecules24010084] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 12/20/2018] [Accepted: 12/21/2018] [Indexed: 11/27/2022] Open
Abstract
We report of the interactions between four amino acids lysine (Lys), arginine (Arg), histidine (His), and phenylalanine (Phe) with the J-aggregates of the protonated 5,10,15,20-tetrakis(4-sulfonatophenyl)-porphyrin H4TPPS. Several aspects of these self-assembled systems have been analyzed: (i) the chiral transfer process; (ii) the hierarchical effects leading to the aggregates formation; and, (iii) the influence of the amino acid concentrations on both transferring and storing chiral information. We have demonstrated that the efficient control on the J-aggregates chirality is obtained when all amino acids are tested and that the chirality transfer process is under hierarchical control. Finally, the chiral porphyrin aggregates obtained exhibit strong chiral inertia.
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Affiliation(s)
- Rosalba Randazzo
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy.
| | - Massimiliano Gaeta
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy.
| | | | - Maria Elena Fragalà
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy.
| | - Roberto Purrello
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy.
| | - Alessandro D'Urso
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy.
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40
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Vithanage BCN, Xu JX, Zhang D. Optical Properties and Kinetics: New Insights to the Porphyrin Assembly and Disassembly by Polarized Resonance Synchronous Spectroscopy. J Phys Chem B 2018; 122:8429-8438. [PMID: 30102542 DOI: 10.1021/acs.jpcb.8b05965] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
With their unique photochemical properties, porphyrins have remained for decades the most interested chemicals as photonic materials for applications ranging from chemistry, biology, medicine, to photovoltaic. Porphyrins can self-assemble into higher order structures. However, information has been scant on the kinetics and structural evolution during porphyrin assembly and disassembly. Furthermore, quantitative understanding of the porphyrin optical activities is complicated by the complex interplay of photon absorption, scattering, and fluorescence emission that can concurrently occur in porphyrin samples. Using meso-tetrakis(4-sulfonatophenyl)porphyrin as the model molecule, reported herein is a combined UV-vis extinction, polarized Stokes-shifted fluorescence, and polarized resonance synchronous spectroscopic (PRS2) study of porphyrin assembly and disassembly in acidic solutions. Although porphyrin assembly and disassembly occur instantaneously upon the sample preparation, both processes last at least a few months before reaching their approximate equilibrium states. The two processes were monitored in situ by quantifying the porphyrin fluorescence and scattering depolarizations as well as its extinction, absorption, scattering, and fluorescence emission cross sections. In addition to a series of new insights to the porphyrin assembly and disassembly, the methodology described in this work opens the door for the in situ study of the structural and optical properties of photonic materials comprising molecular assembly.
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Affiliation(s)
- Buddhini C N Vithanage
- Department of Chemistry , Mississippi State University , Mississippi State , Mississippi 39762 , United States
| | - Joanna Xiuzhu Xu
- Department of Chemistry , Mississippi State University , Mississippi State , Mississippi 39762 , United States
| | - Dongmao Zhang
- Department of Chemistry , Mississippi State University , Mississippi State , Mississippi 39762 , United States.,Department of Chemistry , Xihua University , Chengdu 610039 , China
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41
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Design principles of chiral carbon nanodots help convey chirality from molecular to nanoscale level. Nat Commun 2018; 9:3442. [PMID: 30143608 PMCID: PMC6109168 DOI: 10.1038/s41467-018-05561-2] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 07/11/2018] [Indexed: 01/01/2023] Open
Abstract
The chirality of (nano)structures is paramount in many phenomena, including biological processes, self-assembly, enantioselective reactions, and light or electron spin polarization. In the quest for new chiral materials, metallo-organic hybrids have been attractive candidates for exploiting the aforementioned scientific fields. Here, we show that chiral carbon nanoparticles, called carbon nanodots, can be readily prepared using hydrothermal microwave-assisted synthesis and easily purified. These particles, with a mean particle size around 3 nm, are highly soluble in water and display mirror-image profile both in the UV–Vis and in the infrared regions, as detected by electronic and vibrational circular dichroism, respectively. Finally, the nanoparticles are used as templates for the formation of chiral supramolecular porphyrin assemblies, showing that it is possible to use and transfer the chiral information. This simple (and effective) methodology opens up exciting opportunities for developing a variety of chiral composite materials and applications. A promising and efficient route to chiral materials involves the transfer of chirality across length scales. Here, the authors use chiral molecular precursors to synthesize chiral carbon nanodots, which in turn can template the formation of chiral supramolecular assemblies.
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42
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Maeda T, Kuwajima Y, Akita T, Iwai Y, Komiya N, Uchida Y, Naota T. Helicity Control of Supramolecular Gel Fibers Consisting of an Achiral NiIIComplex in a Chiral Nematic Solvent. Chemistry 2018; 24:12546-12554. [DOI: 10.1002/chem.201801992] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 05/31/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Takatoshi Maeda
- Department of Chemistry Graduate School of Engineering Science; Osaka University; Machikaneyama Toyonaka Osaka 560-8531 Japan
| | - Yuuki Kuwajima
- Department of Chemistry Graduate School of Engineering Science; Osaka University; Machikaneyama Toyonaka Osaka 560-8531 Japan
| | - Takuya Akita
- Department of Chemistry Graduate School of Engineering Science; Osaka University; Machikaneyama Toyonaka Osaka 560-8531 Japan
| | - Yosuke Iwai
- Department of Chemistry Graduate School of Engineering Science; Osaka University; Machikaneyama Toyonaka Osaka 560-8531 Japan
| | - Naruyoshi Komiya
- Department of Chemistry Graduate School of Engineering Science; Osaka University; Machikaneyama Toyonaka Osaka 560-8531 Japan
- Present address: Chemistry Laboratory; The Jikei University School of Medicine; Kokuryo Chofu Tokyo 182-8570 Japan
| | - Yoshiaki Uchida
- Department of Chemistry Graduate School of Engineering Science; Osaka University; Machikaneyama Toyonaka Osaka 560-8531 Japan
| | - Takeshi Naota
- Department of Chemistry Graduate School of Engineering Science; Osaka University; Machikaneyama Toyonaka Osaka 560-8531 Japan
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43
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Occhiuto IG, Zagami R, Trapani M, Bolzonello L, Romeo A, Castriciano MA, Collini E, Monsù Scolaro L. The role of counter-anions in the kinetics and chirality of porphyrin J-aggregates. Chem Commun (Camb) 2018; 52:11520-11523. [PMID: 27709218 DOI: 10.1039/c6cc05768c] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Kinetics of the growth of TPPS4 porphyrin J-aggregates slow down in the order H2SO4 > HCl > HBr > HNO3 > HClO4, in agreement with the Hofmeister series. The rate constants and the extent of chirality correlate with the structure-making or breaking abilities of the different anions with respect to the hydrogen bonding network of the solvent.
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Affiliation(s)
- I G Occhiuto
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ad Ambientali, and C.I.R.C.M.S.B., University of Messina, V.le F. Stagno D'Alcontres 31, Vill. S. Agata, 98166 Messina, Italy. and Dipartimento di Scienze Chimiche, University of Padova, 35131, V. F. Marzolo 1 Padova, Italy
| | - R Zagami
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ad Ambientali 98166, V.le F. Stagno D'Alcontres 31, Messina, Italy.
| | - M Trapani
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ad Ambientali 98166, V.le F. Stagno D'Alcontres 31, Messina, Italy.
| | - L Bolzonello
- Dipartimento di Scienze Chimiche, University of Padova, 35131, V. F. Marzolo 1 Padova, Italy
| | - A Romeo
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ad Ambientali, and C.I.R.C.M.S.B., University of Messina, V.le F. Stagno D'Alcontres 31, Vill. S. Agata, 98166 Messina, Italy. and CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ad Ambientali 98166, V.le F. Stagno D'Alcontres 31, Messina, Italy.
| | - M A Castriciano
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ad Ambientali 98166, V.le F. Stagno D'Alcontres 31, Messina, Italy.
| | - E Collini
- Dipartimento di Scienze Chimiche, University of Padova, 35131, V. F. Marzolo 1 Padova, Italy
| | - L Monsù Scolaro
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ad Ambientali, and C.I.R.C.M.S.B., University of Messina, V.le F. Stagno D'Alcontres 31, Vill. S. Agata, 98166 Messina, Italy. and CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ad Ambientali 98166, V.le F. Stagno D'Alcontres 31, Messina, Italy.
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44
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Sang Y, Duan P, Liu M. Nanotrumpets and circularly polarized luminescent nanotwists hierarchically self-assembled from an achiralC3-symmetric ester. Chem Commun (Camb) 2018; 54:4025-4028. [DOI: 10.1039/c8cc02130a] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An achiralC3-symmetric molecule was found to self-assemble into various hierarchical nanostructures such as nanotwists, nanotrumpets and nanobelts, in which the twisted fibers showed supramolecular chirality as well as circularly polarized luminescence although the compound is achiral.
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Affiliation(s)
- Yutao Sang
- CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences
- Beijing
- P. R. China
- University of Chinese Academy of Sciences
- Beijing
| | - Pengfei Duan
- National Center for Nanoscience and Technology, China
- P. R. China
| | - Minghua Liu
- CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences
- Beijing
- P. R. China
- University of Chinese Academy of Sciences
- Beijing
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45
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Zagami R, Castriciano MA, Romeo A, Scolaro LM. Spectroscopic investigations on chiral J-aggregates induced by tartaric acid in alcoholic solution. J PORPHYR PHTHALOCYA 2017. [DOI: 10.1142/s1088424617500183] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Chiral J-aggregates of meso-tetrakis(4-sulfonatophenyl)porphyrin (TPPS[Formula: see text] have been obtained in ethanol solution triggered by addition of both enantiomeric forms of tartaric acid. A detailed spectroscopic investigation has been performed on aggregates obtained by a well-defined mixture protocol of reactants. Our findings show as both aggregation process and induced supramolecular chirality essentially depend on the concentration of the reactants. Contrary to what occurs in aqueous solution, TPPS4 in ethanol solution shows: (i) at low porphyrin concentration, an aggregation behavior characterized by a L-tartaric acid threshold whereas the D-tartaric does not work even at high concentrations, so revealing an enantiomeric discrimination; (ii) at high porphyrin concentration, a large kinetic discrimination of D- vs. L-enantiomer.
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Affiliation(s)
- Roberto Zagami
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, V.le F. Stagno D’Alcontres 31, 98166 Messina, Italy
| | - Maria Angela Castriciano
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, V.le F. Stagno D’Alcontres 31, 98166 Messina, Italy
| | - Andrea Romeo
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, V.le F. Stagno D’Alcontres 31, 98166 Messina, Italy
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali and C.I.R.C.M.S.B., V.le F. Stagno D’Alcontres 31, 98166 Messina, Italy
| | - Luigi Monsù Scolaro
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, V.le F. Stagno D’Alcontres 31, 98166 Messina, Italy
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali and C.I.R.C.M.S.B., V.le F. Stagno D’Alcontres 31, 98166 Messina, Italy
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Castriciano MA, Gentili D, Romeo A, Cavallini M, Scolaro LM. Spatial control of chirality in supramolecular aggregates. Sci Rep 2017; 7:44094. [PMID: 28275239 PMCID: PMC5343480 DOI: 10.1038/srep44094] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 01/26/2017] [Indexed: 01/14/2023] Open
Abstract
Chirality is one of the most intriguing properties of matter related to a molecule’s lack of mirror symmetry. The transmission of chirality from the molecular level up to the macroscopic scale has major implications in life sciences but it is also relevant for many chemical applications ranging from catalysis to spintronic. These technological applications require an accurate control of morphology, homogeneity and chiral handedness of thin films and nanostructures. We demonstrate a simple approach to specifically transfer chirality to the model supramolecular system of J aggregates of the protonated form of tetrakis(4-sulfonatophenyl)-porphyrin by utilizing a soft lithography technique. This approach successfully allows the fabrication of an ordered distribution of sub-micrometric structures in precise and controllable positions with programmed chirality, providing a fundamental breakthrough toward the exploitation of chiral supramolecular aggregates in technological applications, such as sensors, non-linear optics and spintronic.
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Affiliation(s)
- Maria A Castriciano
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati, Italy
| | - Denis Gentili
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati, Italy
| | - Andrea Romeo
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati, Italy.,Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, and C.I.R.C.M.S.B., V.le F. Stagno D'Alcontres 31, Vill. S. Agata, 98166 Messina, Italy
| | - Massimiliano Cavallini
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati, Italy
| | - Luigi Monsù Scolaro
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati, Italy.,Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, and C.I.R.C.M.S.B., V.le F. Stagno D'Alcontres 31, Vill. S. Agata, 98166 Messina, Italy
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Zagami R, Trapani M, Castriciano M, Romeo A, Mineo P, Scolaro LM. Synthesis, characterization and aggregation behavior of room temperature ionic liquid based on porphyrin- trihexyl(tetradecyl)phosphonium adduct. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.12.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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48
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van der Weegen R, Teunissen AJP, Meijer EW. Directing the Self-Assembly Behaviour of Porphyrin-Based Supramolecular Systems. Chemistry 2017; 23:3773-3783. [PMID: 28111823 DOI: 10.1002/chem.201605872] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Indexed: 12/11/2022]
Abstract
The self-assembly behaviour of a library of tetra-amidated porphyrin molecules decorated with a variety of solubilizing wedges is investigated as dilute solutions in methylcyclohexane. Small changes in the solubilising wedge of the porphyrins resulted in different aggregated states, as evidenced by CD and UV/Vis absorption spectroscopy. The porphyrins form co-facially stacked H-aggregates, slip-stacked J-aggregates or a mixture of both. Detailed thermodynamic and kinetic analysis showed that in all cases the formation of J-aggregates proceeds via an isodesmic mechanism whereas H-aggregates are formed via a cooperative mechanism. It is shown that these aggregates assemble in a parallel pathway, in which both compete for the monomer, compared to a sequential pathway, in which one of the aggregates interconverts into the other. Interestingly, kinetic analysis of porphyrins that only form H-aggregates in thermodynamic equilibrium revealed that the competing pathway towards J-aggregates is operational in these systems as well. Our findings show that the balance between H- and J-aggregates depends on remarkably small changes in the architecture of the solubilising wedges.
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Affiliation(s)
- Rob van der Weegen
- Laboratory of Macromolecular and Organic Chemistry, Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Abraham J P Teunissen
- Laboratory of Macromolecular and Organic Chemistry, Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - E W Meijer
- Laboratory of Macromolecular and Organic Chemistry, Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
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Trapani M, De Luca G, Romeo A, Castriciano MA, Scolaro LM. Spectroscopic investigation on porphyrins nano-assemblies onto gold nanorods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 173:343-349. [PMID: 27685002 DOI: 10.1016/j.saa.2016.09.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 09/06/2016] [Accepted: 09/17/2016] [Indexed: 05/25/2023]
Abstract
The interaction between gold nanorods (Au NRs), synthesized by a conventional seeded growth protocol, and the anionic tetrakis-(4-sulfonatophenyl)porphyrin (TPPS4) has been investigated through various spectroscopic techniques. At neutral pH, the formation of H-aggregates and the inclusion of porphyrin monomers in CTAB micelles covering the nanorods have been evidenced. Under mild acidic conditions (pH=3) a nano-hybrid assembly of porphyrin J-aggregates and Au NRs has been revealed. For the sake of comparison, Cu(II) and Zn(II) metal porphyrin derivatives as well as a cationic porphyrin have been studied in the same experimental conditions, showing that: i) CuTPPS4 forms porphyrin H-dimers onto the Au NRs; ii) ZnTPPS4 undergoes to demetallation, followed by acidification of the central core and eventually aggregation onto Au NRs; iii) cationic porphyrin does not interact with Au NRs.
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Affiliation(s)
- Mariachiara Trapani
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D'Alcontres, 31 98166 Messina, Italy
| | - Giovanna De Luca
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina and C.I.R.C.M.S.B, V.le F. Stagno D'Alcontres, 31 98166 Messina, Italy; CNR-IPCB Istituto dei Polimeri, Compositi e Biomateriali - P.le Enrico Fermi 1, 80055 Portici (NA), Italy
| | - Andrea Romeo
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D'Alcontres, 31 98166 Messina, Italy; Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina and C.I.R.C.M.S.B, V.le F. Stagno D'Alcontres, 31 98166 Messina, Italy
| | - Maria Angela Castriciano
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D'Alcontres, 31 98166 Messina, Italy.
| | - Luigi Monsù Scolaro
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati, Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, V.le F. Stagno D'Alcontres, 31 98166 Messina, Italy; Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina and C.I.R.C.M.S.B, V.le F. Stagno D'Alcontres, 31 98166 Messina, Italy.
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50
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Romeo A, Castriciano MA, Zagami R, Pollicino G, Monsù Scolaro L, Pasternack RF. Effect of zinc cations on the kinetics of supramolecular assembly and the chirality of porphyrin J-aggregates. Chem Sci 2017; 8:961-967. [PMID: 28451233 PMCID: PMC5354048 DOI: 10.1039/c6sc02686a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Accepted: 09/28/2016] [Indexed: 12/19/2022] Open
Abstract
Dilute aqueous solutions of anionic meso-4-sulfonatophenyl-porphyrin (TPPS) extract zinc(ii) ions from glass or quartz surfaces at room temperature and efficiently form the corresponding metal complex (ZnTPPS). The partial or complete formation of ZnTPPS has been probed by UV/Vis spectroscopy and both static and time-resolved fluorescence. The source of zinc(ii) ions has been clearly identified through inductively coupled plasma optical emission spectrometry. The presence of increasing amounts of ZnTPPS slows down the rate of TPPS J-aggregate formation in acid solution. This influences the nucleation step and has a profound impact on the onset of chirality in these species. This evidence indicates the important role of this adventitious metal ion in the interpretation of various spectroscopic and kinetic data for the self-assembly of the TPPS porphyrin and provides some insights into controversial findings on their chirality. The use of this metal derivative as the starting compound for in situ formation of monomeric TPPS is suggested.
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Affiliation(s)
- A Romeo
- Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali , University of Messina , V.le F. Stagno D'Alcontres, 31 , 98166 Messina , Italy .
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali , University of Messina , C.I.R.C.M.S.B , V.le F. Stagno D'Alcontres, 31 , 98166 Messina , Italy
| | - M A Castriciano
- Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali , University of Messina , V.le F. Stagno D'Alcontres, 31 , 98166 Messina , Italy .
| | - R Zagami
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali , University of Messina , C.I.R.C.M.S.B , V.le F. Stagno D'Alcontres, 31 , 98166 Messina , Italy
| | - G Pollicino
- Dipartimento di Scienze Biomediche, Odontoiatriche e delle Immagini Morfologiche e Funzionali , Sezione SASTAS , University of Messina , Messina , Italy
| | - L Monsù Scolaro
- Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali , University of Messina , V.le F. Stagno D'Alcontres, 31 , 98166 Messina , Italy .
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali , University of Messina , C.I.R.C.M.S.B , V.le F. Stagno D'Alcontres, 31 , 98166 Messina , Italy
| | - R F Pasternack
- Department of Chemistry and Biochemistry , Swarthmore College , Swarthmore , Pennsylvania PA 19081 , USA
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