51
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de Windt LNJ, Fernández Z, Fernández-Míguez M, Freire F, Palmans ARA. Elucidating the Supramolecular Copolymerization of N- and C-Centered Benzene-1,3,5-Tricarboxamides: The Role of Parallel and Antiparallel Packing of Amide Groups in the Copolymer Microstructure. Chemistry 2021; 28:e202103691. [PMID: 34766652 PMCID: PMC9300128 DOI: 10.1002/chem.202103691] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Indexed: 12/23/2022]
Abstract
An in‐depth study of the supramolecular copolymerization behavior of N‐ and C‐centered benzene‐1,3,5‐tricarboxamides (N‐ and C‐BTAs) has been conducted in methylcyclohexane and in the solid state. The connectivity of the amide groups in the BTAs differs, and mixing N‐ and C‐BTAs results in supramolecular copolymers with a blocky microstructure in solution. The blocky microstructure results from the formation of weaker and less organized, antiparallel hydrogen bonds between N‐ and C‐BTAs. In methylcyclohexane, the helical threefold hydrogen‐bonding network present in C‐ and N‐BTAs is retained in the mixtures. In the solid state, in contrast, the hydrogen bonds of pure BTAs as well as their mixtures organize in a sheet‐like pattern, and in the mixtures long‐range order is lost. Drop‐casting to kinetically trap the solution microstructures shows that C‐BTAs retain the helical hydrogen bonds, but N‐BTAs immediately adopt the sheet‐like pattern, a direct consequence of the lower stabilization energy of the helical hydrogen bonds. In the copolymers, the stability of the helical aggregates depends on the copolymer composition, and helical aggregates are only preserved when a high amount of C‐BTAs is present. The method outlined here is generally applicable to elucidate the copolymerization behavior of supramolecular monomers both in solution as well as in the solid state.
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Affiliation(s)
- Lafayette N J de Windt
- Laboratory of Macromolecular and Organic Chemistry, Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Zulema Fernández
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares and, Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Manuel Fernández-Míguez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares and, Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares and, Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Anja R A Palmans
- 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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52
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Su H, Jansen SAH, Schnitzer T, Weyandt E, Rösch AT, Liu J, Vantomme G, Meijer EW. Unraveling the Complexity of Supramolecular Copolymerization Dictated by Triazine-Benzene Interactions. J Am Chem Soc 2021; 143:17128-17135. [PMID: 34612646 PMCID: PMC8532160 DOI: 10.1021/jacs.1c07690] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
![]()
Supramolecular copolymers
formed by the noncovalent synthesis of
multiple components expand the complexity of functional molecular
systems. However, varying the composition and microstructure of copolymers
through tuning the interactions between building blocks remains a
challenge. Here, we report a remarkable discovery of the temperature-dependent
supramolecular copolymerization of the two chiral monomers 4,4′,4″-(1,3,5-triazine-2,4,6-triyl)tribenzamide
(S-T) and 4,4′,4″-(benzene-1,3,5-triyl)tribenzamide
(S-B). We first demonstrate
in the homopolymerization of the two individual monomers that a subtle
change from the central triazine to benzene in the chemical structure
of the monomers significantly affects the properties of the resulting
homopolymers in solution. Homopolymers formed by S-T exhibit enhanced stability in comparison
to S-B. More importantly,
through a combination of spectroscopic analysis and theoretical simulation,
we reveal the complex process of copolymerization: S-T aggregates into homopolymers at elevated
temperature, and upon slow cooling S-B gradually intercalates into the copolymers, to finally
give copolymers with almost 80% alternating bonds at 10 °C. The
formation of the predominantly alternating copolymers is plausibly
contributed by preferred heterointeractions between triazine and benzene
cores in S-T and S-B, respectively, at lower temperatures.
Overall, this work unravels the complexity of a supramolecular copolymerization
process where an intermediate heterointeraction (higher than one homointeraction
and lower than the other homointeraction) presents and proposes a
general method to elucidate the microstructures of copolymers responsive
to temperature changes.
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Affiliation(s)
- Hao Su
- Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Stef A H Jansen
- Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Tobias Schnitzer
- Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Elisabeth Weyandt
- Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Andreas T Rösch
- Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Jie Liu
- Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Ghislaine Vantomme
- Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - E W Meijer
- Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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53
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Iseki T, Mabesoone MFJ, Koenis MAJ, Lamers BAG, Weyandt E, de Windt LNJ, Buma WJ, Palmans ARA, Meijer EW. Temperature-dependent modulation by biaryl-based monomers of the chain length and morphology of biphenyl-based supramolecular polymers. Chem Sci 2021; 12:13001-13012. [PMID: 34745531 PMCID: PMC8513997 DOI: 10.1039/d1sc03974a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 09/06/2021] [Indexed: 12/31/2022] Open
Abstract
Supramolecular copolymerizations offer attractive options to introduce structural and functional diversity in supramolecular polymer materials. Yet, general principles and structure–property relationships for rational comonomer design remain lacking. Here, we report on the supramolecular (co)aggregation of a phenylpyridine and bipyridine derivative of a recently reported biphenyl tetracarboxamide-based monomer. We show that both arylpyridines are poor monomers for supramolecular homopolymerizations. However, the two arylpyridines efficiently influence supramolecular polymers of a biphenyl-based polymer. The phenylpyridine derivatives primarily sequestrate biphenyl monomers, while the bipyridine intercalates into the polymers at high temperatures. Thereby, these two poorly homopolymerizing monomers allow for a fine control over the length of the biphenyl-based supramolecular polymers. As such, our results highlight the potential to control the structure and morphology of supramolecular polymers by tailoring the electronic properties of additives. Supramolecular copolymerizations offer attractive options to introduce structural and functional diversity in supramolecular polymer materials.![]()
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Affiliation(s)
- Tomokazu Iseki
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology 5600 MB Eindhoven The Netherlands .,Material Science Research Laboratory, Kao Corporation Wakayama-shi Wakayama 640-8580 Japan
| | - Mathijs F J Mabesoone
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology 5600 MB Eindhoven The Netherlands .,Institute of Microbiology, Eidgenössische Technische Hochschule Zürich Vladimir-Prelog-Weg 4 8093 Zurich Switzerland
| | - Mark A J Koenis
- Van't Hoff Institute for Molecular Sciences, University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands
| | - Brigitte A G Lamers
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology 5600 MB Eindhoven The Netherlands
| | - Elisabeth Weyandt
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology 5600 MB Eindhoven The Netherlands
| | - Lafayette N J de Windt
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology 5600 MB Eindhoven The Netherlands
| | - Wybren Jan Buma
- Van't Hoff Institute for Molecular Sciences, University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands.,Institute for Molecules and Materials, FELIX Laboratory, Radboud University Toernooiveld 7c 6525 ED Nijmegen The Netherlands
| | - Anja R A Palmans
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology 5600 MB Eindhoven The Netherlands
| | - E W Meijer
- Institute for Complex Molecular Systems and Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology 5600 MB Eindhoven The Netherlands
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54
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Bäumer N, Matern J, Fernández G. Recent progress and future challenges in the supramolecular polymerization of metal-containing monomers. Chem Sci 2021; 12:12248-12265. [PMID: 34603655 PMCID: PMC8480320 DOI: 10.1039/d1sc03388c] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 09/04/2021] [Indexed: 11/21/2022] Open
Abstract
The self-assembly of discrete molecular entities into functional nanomaterials has become a major research area in the past decades. The library of investigated compounds has diversified significantly, while the field as a whole has matured. The incorporation of metal ions in the molecular design of the (supra-)molecular building blocks greatly expands the potential applications, while also offering a promising approach to control molecular recognition and attractive and/or repulsive intermolecular binding events. Hence, supramolecular polymerization of metal-containing monomers has emerged as a major research focus in the field. In this perspective article, we highlight recent significant advances in supramolecular polymerization of metal-containing monomers and discuss their implications for future research. Additionally, we also outline some major challenges that metallosupramolecular chemists (will) have to face to produce metallosupramolecular polymers (MSPs) with advanced applications and functionalities.
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Affiliation(s)
- Nils Bäumer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster Corrensstraße 36 48149 Münster Germany
| | - Jonas Matern
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster Corrensstraße 36 48149 Münster Germany
| | - Gustavo Fernández
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster Corrensstraße 36 48149 Münster Germany
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55
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Le Bras L, Dory YL, Champagne B. Computational prediction of the supramolecular self-assembling properties of organic molecules: the role of conformational flexibility of amide moieties. Phys Chem Chem Phys 2021; 23:20453-20465. [PMID: 34498627 DOI: 10.1039/d1cp02675e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two families of organic molecules with different backbones have been considered. The first family is based on a macrolactam-like unit that is constrained in a particular conformation. The second family is composed by a substituted central phenyl that allows a larger mobility for its substituents. They have however a common feature, three amide moieties (within the cycle for the macrolactam-like molecule and as substituents for the phenyl) that permit hydrogen bonding when molecules are stacked. In this study we propose a computational protocol to unravel the ability of the different families to self-assemble into organic nanotubes. Starting from the monomer and going towards larger assemblies like dimers, trimers, and pentamers we applied the different protocols to rationalize the behavior of the different assemblies. Both structures and thermodynamics were investigated to give a complete picture of the process. Thanks to the combination of a quantum mechanics approach and molecular dynamics simulations along with the use of tailored tools (non covalent interaction visualization) and techniques (umbrella sampling), we have been able to differentiate the two families and highlight the best candidate for self-assembling purposes.
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Affiliation(s)
- Laura Le Bras
- Unité de Chimie Physique Théorique et Structurale, Chemistry Department, Namur Institute of Structured Matter, University of Namur, Belgium.
| | - Yves L Dory
- Laboratoire de Synthèse Supramoléculaire, Département de Chimie, Institut de Pharmacologie, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Benoît Champagne
- Unité de Chimie Physique Théorique et Structurale, Chemistry Department, Namur Institute of Structured Matter, University of Namur, Belgium.
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56
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Basuyaux G, Amar A, Troufflard C, Boucekkine A, Métivier R, Raynal M, Moussa J, Bouteiller L, Amouri H. Cyclometallated Pt(II) Complexes Containing a Functionalized Bis‐Urea Alkynyl Ligand: Probing Aggregation Mediated by Hydrogen Bonds
versus
Pt⋅⋅⋅Pt and π−π Interactions. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gaëtan Basuyaux
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
| | - Anissa Amar
- Laboratoire de Chimie et de Physique Quantiques Faculté des Sciences, U.M.M.T.O 15000 Tizi-Ouzou Algeria
| | - Claire Troufflard
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
| | - Abdou Boucekkine
- Univ. Rennes ISCR UMR 6226 CNRS Campus de Beaulieu 35042 Rennes Cedex France
| | - Rémi Métivier
- PPSM, ENS Paris-Saclay, CNRS Université Paris-Saclay 91190 Gif-sur-Yvette France
| | - Matthieu Raynal
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
| | - Jamal Moussa
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
| | - Laurent Bouteiller
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
| | - Hani Amouri
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
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57
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Chirality and Supramolecular Copolymerizations – The Elusive Role of Subtle Solvation Effects. Isr J Chem 2021. [DOI: 10.1002/ijch.202100078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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58
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Chiral amplification of supramolecular coassemblies of chiral and achiral acylhydrazine-functionalized biphenyls and their copolymers. Polym J 2021. [DOI: 10.1038/s41428-021-00550-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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59
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Sarkar A, Sasmal R, Das A, Venugopal A, Agasti SS, George SJ. Tricomponent Supramolecular Multiblock Copolymers with Tunable Composition via Sequential Seeded Growth. Angew Chem Int Ed Engl 2021; 60:18209-18216. [PMID: 34111324 DOI: 10.1002/anie.202105342] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/25/2021] [Indexed: 01/28/2023]
Abstract
Synthesis of supramolecular block co-polymers (BCP) with small monomers and predictive sequence requires elegant molecular design and synthetic strategies. Herein we report the unparalleled synthesis of tri-component supramolecular BCPs with tunable microstructure by a kinetically controlled sequential seeded supramolecular polymerization of fluorescent π-conjugated monomers. Core-substituted naphthalene diimide (cNDI) derivatives with different core substitutions and appended with β-sheet forming peptide side chains provide perfect monomer design with spectral complementarity, pathway complexity and minimal structural mismatch to synthesize and characterize the multi-component BCPs. The distinct fluorescent nature of various cNDI monomers aids the spectroscopic probing of the seeded growth process and the microscopic visualization of resultant supramolecular BCPs using Structured Illumination Microscopy (SIM). Kinetically controlled sequential seeded supramolecular polymerization presented here is reminiscent of the multi-step synthesis of covalent BCPs via living chain polymerization. These findings provide a promising platform for constructing unique functional organic heterostructures for various optoelectronic and catalytic applications.
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Affiliation(s)
- Aritra Sarkar
- New Chemistry Unit (NCU) and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore, 560064, India
| | - Ranjan Sasmal
- New Chemistry Unit (NCU) and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore, 560064, India
| | - Angshuman Das
- New Chemistry Unit (NCU) and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore, 560064, India
| | - Akhil Venugopal
- New Chemistry Unit (NCU) and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore, 560064, India
| | - Sarit S Agasti
- New Chemistry Unit (NCU) and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore, 560064, India
| | - Subi J George
- New Chemistry Unit (NCU) and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore, 560064, India
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60
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A case study of monomer design for controlled/living supramolecular polymerization. Polym J 2021. [DOI: 10.1038/s41428-021-00478-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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61
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Sarkar S, Sarkar A, Som A, Agasti SS, George SJ. Stereoselective Primary and Secondary Nucleation Events in Multicomponent Seeded Supramolecular Polymerization. J Am Chem Soc 2021; 143:11777-11787. [PMID: 34308651 DOI: 10.1021/jacs.1c05642] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Bioinspired, kinetically controlled seeded growth has been recently shown to provide length, dispersity, and sequence control on the primary structure of dynamic supramolecular polymers. However, command over the molecular organization at all hierarchical levels for the modulation of higher order structures of supramolecular polymers remains a formidable task. In this context, a surface-catalyzed secondary nucleation process, which plays an important role in the autocatalytic generation of amyloid fibrils and also during the chiral crystallization of small monomers, offers exciting possibilities for topology control in synthetic macromolecular systems by introducing secondary growth pathways compared to the usual primary nucleation-elongation process. However, mechanistic insights into the molecular determinants and driving forces for the secondary nucleation event in synthetic systems are not yet realized. Herein, we attempt to fill this dearth by showing an unprecedented molecular chirality control on the primary and secondary nucleation events in seed-induced supramolecular polymerization. Comprehensive kinetic experiments using in situ spectroscopic probing of the temporal changes of the monomer organization during the growth process provide a unique study to characterize the primary and secondary nucleation events in a supramolecular polymerization process. Kinetic analyses along with various microscopic studies further reveal the remarkable effect of stereoselective nucleation and seeding events on the (micro)structural aspects of the resulting multicomponent supramolecular polymers.
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Affiliation(s)
- Souvik Sarkar
- New Chemistry Unit and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Aritra Sarkar
- New Chemistry Unit and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Arka Som
- New Chemistry Unit and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Sarit S Agasti
- New Chemistry Unit and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Subi J George
- New Chemistry Unit and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
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62
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Song Q, Kerr A, Yang J, Hall SCL, Perrier S. Tubular supramolecular alternating copolymers fabricated by cyclic peptide-polymer conjugates. Chem Sci 2021; 12:9096-9103. [PMID: 34276939 PMCID: PMC8261775 DOI: 10.1039/d1sc02389f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 05/29/2021] [Indexed: 11/21/2022] Open
Abstract
Supramolecular copolymers are an emerging class of materials, which bring together different properties and functionalities of multiple components via noncovalent interactions. While it is widely acknowledged that the repeating unit sequence plays an essential role on the performance of these materials, mastering and tuning the supramolecular copolymer sequence is still an open challenge. To date, only statistical supramolecular copolymers have been reported using cyclic peptide-polymer conjugates as building blocks. To enrich the diversity of tubular supramolecular copolymers, we report here a strategy of controlling their sequences by introducing an extra complementary noncovalent interaction. Hence, two conjugates bearing one electron donor and one electron acceptor, respectively, are designed. The two conjugates can individually assemble into tubular supramolecular homopolymers driven by the multiple hydrogen bonding interactions between cyclic peptides. However, the complementary charge transfer interaction between the electron donor and acceptor makes each conjugate more favorable for complexing with its counterpart, resulting in an alternating sequence of the supramolecular copolymer. Following the same principle, more functional supramolecular alternating copolymers are expected to be designed and constructed via other complementary noncovalent interactions (electrostatic interactions, metal coordination interactions, and host-guest interactions, etc.).
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Affiliation(s)
- Qiao Song
- Department of Chemistry, University of Warwick Coventry CV4 7AL UK
- Shenzhen Grubbs Institute, Southern University of Science and Technology Shenzhen 518055 China
| | - Andrew Kerr
- Department of Chemistry, University of Warwick Coventry CV4 7AL UK
| | - Jie Yang
- Department of Chemistry, University of Warwick Coventry CV4 7AL UK
| | - Stephen C L Hall
- Department of Chemistry, University of Warwick Coventry CV4 7AL UK
| | - Sébastien Perrier
- Department of Chemistry, University of Warwick Coventry CV4 7AL UK
- Warwick Medical School, University of Warwick Coventry CV4 7AL UK
- Faculty of Pharmacy and Pharmaceutical Sciences, Monash University Parkville VIC 3052 Australia
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63
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Sarkar A, Sasmal R, Das A, Venugopal A, Agasti SS, George SJ. Tricomponent Supramolecular Multiblock Copolymers with Tunable Composition via Sequential Seeded Growth. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105342] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Aritra Sarkar
- New Chemistry Unit (NCU) and School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
| | - Ranjan Sasmal
- New Chemistry Unit (NCU) and School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
| | - Angshuman Das
- New Chemistry Unit (NCU) and School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
| | - Akhil Venugopal
- New Chemistry Unit (NCU) and School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
| | - Sarit S. Agasti
- New Chemistry Unit (NCU) and School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
| | - Subi J. George
- New Chemistry Unit (NCU) and School of Advanced Materials (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur Bangalore 560064 India
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64
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Komáromy D, Tiemersma-Wegman T, Kemmink J, Portale G, Adamski PR, Blokhuis A, Aalbers FS, Marić I, Santiago GM, Ottelé J, Sood A, Saggiomo V, Liu B, van der Meulen P, Otto S. Stoichiometry alone can steer supramolecular systems on complex free energy surfaces with high selectivity. Chem 2021. [DOI: 10.1016/j.chempr.2021.05.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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65
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Matoba S, Kanzaki C, Yamashita K, Kusukawa T, Fukuhara G, Okada T, Narushima T, Okamoto H, Numata M. Directional Supramolecular Polymerization in a Dynamic Microsolution: A Linearly Moving Polymer's End Striking Monomers. J Am Chem Soc 2021; 143:8731-8746. [PMID: 34060820 DOI: 10.1021/jacs.1c02644] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Although directional chain reactions are common in nature's self-assembly processes and in covalent polymerizations, it has been challenging to perform such processes in artificial one-dimensional self-assembling systems. In this paper, we describe a system, employing perylene bisimide (PBI) derivatives as monomers, for selectively activating one end of a supramolecular polymer during its growth and, thereby, realizing directional supramolecular polymerization. Upon introduction of a solution containing only a single PBI monomer into the microflow channel, nucleation was induced spontaneously. The dependency of the aggregation efficiency on the flow rate suggested that the shear force facilitated collisions among the monomers to overcome the activation energy required for nucleation. Next, by introducing a solution containing both monomer and polymer, we investigated how the shear force influenced the monomer-polymer interactions. In situ fluorescence spectra and linear dichroism revealed that growth of the polymers was accelerated only when they were oriented under the influence of shear stress. Upon linear motion of the oriented polymer, polymer growth at that single end became predominant relative to the nucleation of freely diffusing monomers. When applying this strategy to a two-monomer system, the second (less active) monomer reacted selectively at the forward-facing terminus of the first polymer, leading to the creation of a diblock copolymer through formation of a molecular heterojunction. This strategy-friction-induced activation of a single end of a polymer-should be applicable more generally to directional supramolecular block copolymerizations of various functional molecules, allowing molecular heterojunctions to be made at desired positions in a polymer.
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Affiliation(s)
- Shota Matoba
- Department of Biomolecular Chemistry, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Chisako Kanzaki
- Department of Biomolecular Chemistry, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Kae Yamashita
- Department of Biomolecular Chemistry, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Takahiro Kusukawa
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Gaku Fukuhara
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan.,JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Tetsuo Okada
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Tetsuya Narushima
- Institute for Molecular Science and The Graduate University for Advanced Studies (Sokendai), 38 Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Hiromi Okamoto
- Institute for Molecular Science and The Graduate University for Advanced Studies (Sokendai), 38 Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Munenori Numata
- Department of Biomolecular Chemistry, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
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66
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Würthner F. Solvent Effects in Supramolecular Chemistry: Linear Free Energy Relationships for Common Intermolecular Interactions. J Org Chem 2021; 87:1602-1615. [PMID: 33973476 DOI: 10.1021/acs.joc.1c00625] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The proper choice of solvent is of major importance for all studies in supramolecular chemistry, including molecular recognition in host-guest systems, intramolecular folding, self-assembly, and supramolecular polymerization. In this Perspective, the usefulness of linear free energy relationships (LFERs) is highlighted to unravel the effect of solvents on coordinate bonding (e.g., cation-crown ether), hydrogen bonding, halogen bonding, dipolar aggregation, and π-π-stacking. For all of these intermolecular interactions widely applied in supramolecular systems, LFER relationships between the Gibbs binding energies and common solvent polarity scales including ET(30), π*, α or β based on solvatochromic dyes, scales derived from binding processes such as Gutmann donor and acceptor numbers or hydrogen bond donor and acceptor scales, or physical functions like the Kirkwood-Onsager or the Liptay-Onsager functions could be demonstrated. These relationships can now be applied toward a better understanding of the prevailing intermolecular forces for supramolecular interactions. They further enable a rational selection of the most suitable solvent for the preparation of self-assembled materials and the estimation of binding constants without the need for time-consuming comprehensive investigations of solvents.
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Affiliation(s)
- Frank Würthner
- Center for Nanosystems Chemistry (CNC), Universität Würzburg, Theodor-Boveri-Weg, 97074 Würzburg, Germany.,Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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67
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Naranjo C, Dorca Y, Ghosh G, Gómez R, Fernández G, Sánchez L. Chain-capper effect to bias the amplification of asymmetry in supramolecular polymers. Chem Commun (Camb) 2021; 57:4500-4503. [PMID: 33956018 DOI: 10.1039/d1cc00740h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The kinetically controlled amplification of asymmetry experienced in the co-assembly of chiral tribiphenylaminetricarboxamides (S)-1 and (R)-1 is investigated. The formation of metastable monomeric species through intramolecular H-bonds retards the efficient amplification of asymmetry due to a chain-capper effect.
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Affiliation(s)
- Cristina Naranjo
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Complutense de Madrid, Ciudad Universitaria, s/n, 28040, Madrid, Spain.
| | - Yeray Dorca
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Complutense de Madrid, Ciudad Universitaria, s/n, 28040, Madrid, Spain.
| | - Goutam Ghosh
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, 48149 Münster, Germany.
| | - Rafael Gómez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Complutense de Madrid, Ciudad Universitaria, s/n, 28040, Madrid, Spain.
| | - Gustavo Fernández
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, 48149 Münster, Germany.
| | - Luis Sánchez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Complutense de Madrid, Ciudad Universitaria, s/n, 28040, Madrid, Spain.
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68
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Sarkar A, Sasmal R, Das A, Agasti SS, George SJ. Kinetically controlled synthesis of supramolecular block copolymers with narrow dispersity and tunable block lengths. Chem Commun (Camb) 2021; 57:3937-3940. [PMID: 33871492 DOI: 10.1039/d1cc00332a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Synthesis of supramolecular block copolymers (BCPs) from small monomers has been recently attempted. However, the lack of dispersity and length control of the blocky segments limits its functional outcome. Herein we demonstrate the synthesis of well-defined supramolecular BCPs with tunable block lengths by varying the monomer to seed ratio in a kinetically controlled seeded supramolecular polymerization process. Structured Illumination microscopy (SIM) and spectroscopic analyses provide structural characterization of these supramolecular BCPs, which offers various possibilities as axial organic heterostructures.
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Affiliation(s)
- Aritra Sarkar
- Supramolecular Chemistry Laboratory, New Chemistry Unit, School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India.
| | - Ranjan Sasmal
- Supramolecular Chemistry Laboratory, New Chemistry Unit, School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India.
| | - Angshuman Das
- Supramolecular Chemistry Laboratory, New Chemistry Unit, School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India.
| | - Sarit S Agasti
- Supramolecular Chemistry Laboratory, New Chemistry Unit, School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India.
| | - Subi J George
- Supramolecular Chemistry Laboratory, New Chemistry Unit, School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India.
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69
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Shin M, Kim S, Lee E, Jung JH, Park IH, Lee SS. Pillar[5]- bis-trithiacrown: Influence of Host-Guest Interactions on the Formation of Coordination Networks. Inorg Chem 2021; 60:5804-5811. [PMID: 33797229 DOI: 10.1021/acs.inorgchem.1c00114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A pillar[5]-bis-trithiacrown (L) capable of metal binding and organic guest threading simultaneously has been employed, and the influence of dinitrile guests [CN(CH2)nCN (n = 2-6: abbreviated C2-C6)] on the coordination behaviors has been investigated. When the ditopic ligand L was reacted with HgCl2 in the presence of the C2-C6 guests, the shorter guests C2 and C3 afforded a two-dimensional coordination polymer [Hg7Cl14(C2@L)2]n (1) and a one-dimensional coordination polymer [(Hg3Cl6)2(C3@L)2]n (2), respectively. In 1 and 2, each dinitrile guest threads into the pillararene cavity to form a C2@L or C3@L unit via the host-guest interaction. Further linking of these units by exocyclic Hg-S bonds and anion coordination lead to the formation of coordination products with different dimensionalities. While the use of the longer guests C4-C6 under the same reactions yielded a discrete dimercury(II) complex 3, [Hg2Cl4(CH3CN@L)] which contains one acetonitrile solvent molecule because the longer dinitriles do not serve as effective guests. In the NMR and UV-vis studies, the association constants (log K1:1) for the host-guest interactions of L with the dinitrile guests are C2 (4.75) > C3 (4.17) ≫ C4 (2.85) > C5 (2.45) > C6 (too small), indicating that the shorter guests C2 or C3 interact more strongly than longer ones due to the confined interior space of L. Taken collectively, the C2 and C3 guests with proper size-matching promote the formation of coordination polymers and vice versa, suggesting that the guest size could be a controlling factor.
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Affiliation(s)
- Mingyeong Shin
- Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, South Korea
| | - Seulgi Kim
- Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, South Korea
| | - Eunji Lee
- Department of Chemistry, Gangneung-Wonju National University, Gangneung 25457, South Korea
| | - Jong Hwa Jung
- Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, South Korea
| | - In-Hyeok Park
- Graduate School of Analytical Science and Technology (GRAST), Chungnam National University, Daejeon 34134, South Korea
| | - Shim Sung Lee
- Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, South Korea
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70
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Iguchi H, Furutani H, Kimizuka N. Ionic Charge-Transfer Liquid Crystals Formed by Alternating Supramolecular Copolymerization of Liquid π-Donors and TCNQ. Front Chem 2021; 9:657246. [PMID: 33855013 PMCID: PMC8039295 DOI: 10.3389/fchem.2021.657246] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 03/04/2021] [Indexed: 11/16/2022] Open
Abstract
A new family of liquid π-donors, lipophilic dihydrophenazine (DHP) derivatives, show remarkably high π-electron-donor property which exhibit supramolecular alternating copolymerization with 7,7,8,8-tetracyanoquinodimethane (TCNQ), giving ionic charge-transfer (ICT) complexes. The ICT complexes form distinct columnar liquid crystalline (LC) mesophases with well-defined alternating molecular alignment as demonstrated by UV-Vis-NIR spectra, IR spectra, and X-ray diffraction (XRD) patterns. These liquid crystalline ICT complexes display unique phase transitions in response to mechanical stress: the columnar ICT phase is converted to macroscopically oriented smectic-like mesophases upon applying shear force. Although there exist reports on the formation of ICT in the crystalline state, this study provides the first rational identification of ICT mesophases based on the spectroscopic and structural data. The liquid crystalline ICT phases are generated by strong electronic interactions between the liquid π-donors and solid acceptors. It clearly shows the significance of simultaneous fulfillment of strong π-donating ability and ordered self-assembly of the stable ICT pairs. The flexible, stimuli-responsive structural transformation of the ICT complexes offer a new perspective for designing processable CT systems with controlled hierarchical self-assembly and electronic structures.
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Affiliation(s)
- Hiroaki Iguchi
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka, Japan.,Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Japan
| | - Hidenori Furutani
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka, Japan
| | - Nobuo Kimizuka
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka, Japan.,Center for Molecular Systems (CMS), Kyushu University, Fukuoka, Japan
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71
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Yasen W, Dong R, Aini A, Zhu X. Recent advances in supramolecular block copolymers for biomedical applications. J Mater Chem B 2021; 8:8219-8231. [PMID: 32803207 DOI: 10.1039/d0tb01492c] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Supramolecular block copolymers (SBCs) have received considerable interest in polymer chemistry, materials science, biomedical engineering and nanotechnology owing to their unique structural and functional advantages, such as low cytotoxicity, outstanding biodegradability, smart environmental responsiveness, and so forth. SBCs comprise two or more different homopolymer subunits linked by noncovalent bonds, and these polymers, in particular, combine the dynamically reversible nature of supramolecular polymers with the hierarchical microphase-separated structures of block polymers. A rapidly increasing number of publications on the synthesis and applications of SBCs have been reported in recent years; however, a systematic summary of the design, synthesis, properties and applications of SBCs has not been published. To this end, this review provides a brief overview of the recent advances in SBCs and describes the synthesis strategies, properties and functions, and their widespread applications in drug delivery, gene delivery, protein delivery, bioimaging and so on. In this review, we aim to elucidate the general concepts and structure-property relationships of SBCs, as well as their practical bioapplications, shedding further valuable insights into this emerging research field.
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Affiliation(s)
- Wumaier Yasen
- School of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China and School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
| | - Ruijiao Dong
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China. and Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UK.
| | - Aliya Aini
- School of Foreign Languages, Xinjiang University, Urumqi 830046, China
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
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72
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Minev D, Wintersinger CM, Ershova A, Shih WM. Robust nucleation control via crisscross polymerization of highly coordinated DNA slats. Nat Commun 2021; 12:1741. [PMID: 33741912 PMCID: PMC7979912 DOI: 10.1038/s41467-021-21755-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 01/29/2021] [Indexed: 11/09/2022] Open
Abstract
Natural biomolecular assemblies such as actin filaments or microtubules can exhibit all-or-nothing polymerization in a kinetically controlled fashion. The kinetic barrier to spontaneous nucleation arises in part from positive cooperativity deriving from joint-neighbor capture, where stable capture of incoming monomers requires straddling multiple subunits on a filament end. For programmable DNA self-assembly, it is likewise desirable to suppress spontaneous nucleation to enable powerful capabilities such as all-or-nothing assembly of nanostructures larger than a single DNA origami, ultrasensitive detection, and more robust algorithmic assembly. However, existing DNA assemblies use monomers with low coordination numbers that present an effective kinetic barrier only for slow, near-reversible growth conditions. Here we introduce crisscross polymerization of elongated slat monomers that engage beyond nearest neighbors which sustains the kinetic barrier under conditions that promote fast, irreversible growth. By implementing crisscross slats as single-stranded DNA, we attain strictly seed-initiated nucleation of crisscross ribbons with distinct widths and twists. For programmable DNA self-assembly, it is desirable to suppress spontaneous nucleation to enable all-or-nothing assembly of nanostructures far larger than a single DNA origami. Here the authors introduce crisscross polymerization of elongated slat monomers that engage beyond nearest neighbors, providing strictly seed-initiated nucleation of crisscross ribbons with distinct widths and twists.
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Affiliation(s)
- Dionis Minev
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA.,Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA.,Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA.,Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA
| | - Christopher M Wintersinger
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA.,Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA.,Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA.,Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA
| | - Anastasia Ershova
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA.,Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA.,Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA
| | - William M Shih
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA. .,Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA. .,Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA.
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73
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Liu J, Schotman MJG, Hendrix MMRM, Lou X, Marín San Román PP, Voets IK, Sijbesma RP. Effects of structural variation on the self‐assembly of bis‐urea based bolaamphiphiles. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20200888] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Jie Liu
- Department of Chemical Engineering and Chemistry, Institute for Complex Molecular Systems Eindhoven University of Technology Eindhoven The Netherlands
| | - Maaike J. G. Schotman
- Department of Biomedical Engineering, Institute for Complex Molecular Systems Eindhoven University of Technology Eindhoven The Netherlands
| | - Marco M. R. M. Hendrix
- Department of Chemical Engineering and Chemistry, Institute for Complex Molecular Systems Eindhoven University of Technology Eindhoven The Netherlands
| | - Xianwen Lou
- Department of Chemical Engineering and Chemistry, Institute for Complex Molecular Systems Eindhoven University of Technology Eindhoven The Netherlands
| | - Patricia P. Marín San Román
- Department of Chemical Engineering and Chemistry, Institute for Complex Molecular Systems Eindhoven University of Technology Eindhoven The Netherlands
| | - Ilja K. Voets
- Department of Chemical Engineering and Chemistry, Institute for Complex Molecular Systems Eindhoven University of Technology Eindhoven The Netherlands
| | - Rint P. Sijbesma
- Department of Chemical Engineering and Chemistry, Institute for Complex Molecular Systems Eindhoven University of Technology Eindhoven The Netherlands
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74
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Raynal M, Li Y, Troufflard C, Przybylski C, Gontard G, Maistriaux T, Idé J, Lazzaroni R, Bouteiller L, Brocorens P. Experimental and computational diagnosis of the fluxional nature of a benzene-1,3,5-tricarboxamide-based hydrogen-bonded dimer. Phys Chem Chem Phys 2021; 23:5207-5221. [PMID: 33625418 DOI: 10.1039/d0cp06128j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Precise characterization of the hydrogen bond network present in discrete self-assemblies of benzene-1,3,5-tricarboxamide monomers derived from amino-esters (ester BTAs) is crucial for the construction of elaborated functional co-assemblies. For all ester BTA dimeric structures previously reported, ester carbonyls in the side chain acted as hydrogen bond acceptors, yielding well-defined dimers stabilized by six hydrogen bonds. The ester BTA monomer derived from glycine (BTA Gly) shows a markedly different self-assembly behaviour. We report herein a combined experimental and computational investigation aimed at determining the nature of the dimeric species formed by BTA Gly. Two distinct dimeric structures were characterized by single-crystal X-ray diffraction measurements. Likewise, a range of spectroscopic and scattering techniques as well as molecular modelling were employed to diagnose the nature of dynamic dimeric structures in toluene. Our results unambiguously establish that both ester and amide carbonyls are involved in the hydrogen bond network of the discrete dimeric species formed by BTA Gly. The participation of roughly 4.5 ester carbonyls and 1.5 amide carbonyls per dimer as determined by FT-IR spectroscopy implies that several conformations coexist in solution. Moreover, NMR analysis and modelling data reveal rapid interconversion between these different conformers leading to a symmetric structure on the NMR timescale. Rapid hydrogen bond shuffling between conformers having three (three), two (four), one (five) and zero (six) amide carbonyl groups (ester carbonyl groups, respectively) as hydrogen bond acceptors is proposed to explain the magnetic equivalence of the amide N-H on the NMR timescale. When compared to other ester BTA derivatives in which only ester carbonyls act as hydrogen bond acceptors, the fluxional behaviour of the hydrogen-bonded dimers of BTA Gly likely originates from a larger range of energetically favorable conformations accessible through rotation of the BTA side chains.
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Affiliation(s)
- M Raynal
- Sorbonne Université, CNRS, IPCM, UMR 8232, 4 Place Jussieu, 75252 Paris Cedex 05, France.
| | - Y Li
- Sorbonne Université, CNRS, IPCM, UMR 8232, 4 Place Jussieu, 75252 Paris Cedex 05, France.
| | - C Troufflard
- Sorbonne Université, CNRS, IPCM, UMR 8232, 4 Place Jussieu, 75252 Paris Cedex 05, France.
| | - C Przybylski
- Sorbonne Université, CNRS, IPCM, UMR 8232, 4 Place Jussieu, 75252 Paris Cedex 05, France.
| | - G Gontard
- Sorbonne Université, CNRS, IPCM, UMR 8232, 4 Place Jussieu, 75252 Paris Cedex 05, France.
| | - T Maistriaux
- Service de Chimie des Matériaux Nouveaux, Institut de Recherche sur les Matériaux, Université de Mons, Place du Parc, 20, B-7000, Mons, Belgium.
| | - J Idé
- Service de Chimie des Matériaux Nouveaux, Institut de Recherche sur les Matériaux, Université de Mons, Place du Parc, 20, B-7000, Mons, Belgium.
| | - R Lazzaroni
- Service de Chimie des Matériaux Nouveaux, Institut de Recherche sur les Matériaux, Université de Mons, Place du Parc, 20, B-7000, Mons, Belgium.
| | - L Bouteiller
- Sorbonne Université, CNRS, IPCM, UMR 8232, 4 Place Jussieu, 75252 Paris Cedex 05, France.
| | - P Brocorens
- Service de Chimie des Matériaux Nouveaux, Institut de Recherche sur les Matériaux, Université de Mons, Place du Parc, 20, B-7000, Mons, Belgium.
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75
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Kotha S, Mabesoone MFJ, Srideep D, Sahu R, Reddy SK, Rao KV. Supramolecular Depolymerization in the Mixture of Two Poor Solvents: Mechanistic Insights and Modulation of Supramolecular Polymerization of Ionic π‐Systems. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202011977] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Srinu Kotha
- Department of Chemistry Indian Institute of Technology Hyderabad, Kandi Sangareddy Telangana 502285 India
| | - Mathijs F. J. Mabesoone
- Laboratory of Macromolecular and Organic Chemistry and the Institute for Complex Molecular Systems Eindhoven University of Technology P.O. Box 513, 5600 MB Eindhoven The Netherlands
| | - Dasari Srideep
- Department of Chemistry Indian Institute of Technology Hyderabad, Kandi Sangareddy Telangana 502285 India
| | - Rahul Sahu
- Centre for Computational and Data Science Indian Institute of Technology Kharagpur Kharagpur West Bengal 721302 India
| | - Sandeep K. Reddy
- Centre for Computational and Data Science Indian Institute of Technology Kharagpur Kharagpur West Bengal 721302 India
| | - Kotagiri Venkata Rao
- Department of Chemistry Indian Institute of Technology Hyderabad, Kandi Sangareddy Telangana 502285 India
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76
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Kotha S, Mabesoone MFJ, Srideep D, Sahu R, Reddy SK, Rao KV. Supramolecular Depolymerization in the Mixture of Two Poor Solvents: Mechanistic Insights and Modulation of Supramolecular Polymerization of Ionic π-Systems. Angew Chem Int Ed Engl 2021; 60:5459-5466. [PMID: 33247874 DOI: 10.1002/anie.202011977] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/19/2020] [Indexed: 11/10/2022]
Abstract
Solvents are fundamentally essential for the synthesis and processing of soft materials. Supramolecular polymers (SPs), an emerging class of soft materials, are usually stable in single and mixtures of poor solvents. In contrast to these preconceived notions, here we report the depolymerization of SPs in the mixture of two poor solvents. This surprising behavior was observed for well-known cationic perylene diimides (cPDIs) in the mixtures of water and amphiphilic organic solvents such as isopropanol (IPA). cPDIs form stable SPs in water and IPA but readily depolymerize into monomers in 50-70 vol% IPA containing water. This is due to the selective solvation of the π-surface of cPDIs by alkyl chains of IPA and ionic side chains by water, as evidenced by molecular dynamic simulations. Moreover, by systematically changing the ratio between water and amphiphilic organic solvent, we could achieve an unprecedented supramolecular polymerization both by increasing and decreasing the solvent polarity.
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Affiliation(s)
- Srinu Kotha
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, 502285, India
| | - Mathijs F J Mabesoone
- Laboratory of Macromolecular and Organic Chemistry and the Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Dasari Srideep
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, 502285, India
| | - Rahul Sahu
- Centre for Computational and Data Science, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Sandeep K Reddy
- Centre for Computational and Data Science, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Kotagiri Venkata Rao
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, 502285, India
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77
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Martínez-Aguirre MA, Li Y, Vanthuyne N, Bouteiller L, Raynal M. Dissecting the Role of the Sergeants in Supramolecular Helical Catalysts: From Chain Capping to Intercalation. Angew Chem Int Ed Engl 2021; 60:4183-4191. [PMID: 33180372 DOI: 10.1002/anie.202012457] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Indexed: 11/05/2022]
Abstract
Controlling the properties of supramolecular assemblies requires unveiling the specific interactions between their components. In the present work, the catalytic properties and structure of co-assemblies composed of a benzene-1,3,5-tricarboxamide (BTA) ligand coordinated to copper (the soldier) and seven enantiopure BTAs (the sergeants) have been determined. Whatever the sergeant, the enantioselectivity of the reaction is directly proportional to the optical purity of the supramolecular helices. More strikingly, the role played by the sergeant in the co-assembly process differs significantly: from almost pure intercalator (when it is incorporated in the stacks of the soldier and generates long homochiral helices) to pure chain capper (when it leads to the formation of partly helically biased and short assemblies). The former situation leads to optimal enantioselectivity for the catalytic system under study (58 % ee) while the latter situation leads to very low selectivity (8 % ee). The successful rationalization of this high and unexpected difference is crucial for the development of more efficient catalysts and more elaborate supramolecular systems.
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Affiliation(s)
- Mayte A Martínez-Aguirre
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 Place Jussieu, 75005, Paris, France
| | - Yan Li
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 Place Jussieu, 75005, Paris, France
| | - Nicolas Vanthuyne
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2, UMR 7313, 13397, Marseille Cedex 20, France
| | - Laurent Bouteiller
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 Place Jussieu, 75005, Paris, France
| | - Matthieu Raynal
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 Place Jussieu, 75005, Paris, France
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78
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Choi H, Ogi S, Ando N, Yamaguchi S. Dual Trapping of a Metastable Planarized Triarylborane π-System Based on Folding and Lewis Acid–Base Complexation for Seeded Polymerization. J Am Chem Soc 2021; 143:2953-2961. [DOI: 10.1021/jacs.0c13353] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Heekyoung Choi
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya 464-8601, Japan
| | - Soichiro Ogi
- Department of Chemistry, Graduate School of Science and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
| | - Naoki Ando
- Department of Chemistry, Graduate School of Science and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
| | - Shigehiro Yamaguchi
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya 464-8601, Japan
- Department of Chemistry, Graduate School of Science and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
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79
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Czichy M, Janasik P, Motyka R, Zassowski P, Grabiec E, Wolinska-Grabczyk A, Lapkowski M. Influence of isomeric phthaloperinone monomers on the formation of π-dimers and σ-bonded segments in electrochemically-crosslinked products. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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80
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Gila-Vilchez C, Mañas-Torres MC, González-Vera JA, Franco-Montalban F, Tamayo JA, Conejero-Lara F, Cuerva JM, Lopez-Lopez MT, Orte A, Álvarez de Cienfuegos L. Insights into the co-assemblies formed by different aromatic short-peptide amphiphiles. Polym Chem 2021. [DOI: 10.1039/d1py01366a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The mechanism of co-assembly of different aromatic dipeptides has been studied using a combination of microscopy and spectroscopy techniques. At an equimolar ratio, the kinetics of the process is favored giving rise to alternate copolymers.
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Affiliation(s)
- Cristina Gila-Vilchez
- Universidad de Granada, Departamento de Física Aplicada, Facultad de Ciencias, 18071 Granada, Spain
| | - Mari C. Mañas-Torres
- Universidad de Granada, Dpto de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia Química Aplicada a Biomedicina y Medioambiente (UEQ), 18071-Granada, Spain
| | - Juan A. González-Vera
- Universidad de Granada, Nanoscopy-UGR Laboratory. Dpto de FisicoQuímica, Facultad de Farmacia, UEQ, 18072-Granada, Spain
| | - Francisco Franco-Montalban
- Universidad de Granada, Dpto de Química Farmacéutica y Orgánica, Facultad de Farmacia, 18072-Granada, Spain
| | - Juan A. Tamayo
- Universidad de Granada, Dpto de Química Farmacéutica y Orgánica, Facultad de Farmacia, 18072-Granada, Spain
| | | | - Juan Manuel Cuerva
- Universidad de Granada, Dpto de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia Química Aplicada a Biomedicina y Medioambiente (UEQ), 18071-Granada, Spain
| | - Modesto T. Lopez-Lopez
- Universidad de Granada, Departamento de Física Aplicada, Facultad de Ciencias, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Spain
| | - Angel Orte
- Universidad de Granada, Nanoscopy-UGR Laboratory. Dpto de FisicoQuímica, Facultad de Farmacia, UEQ, 18072-Granada, Spain
| | - Luis Álvarez de Cienfuegos
- Universidad de Granada, Dpto de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia Química Aplicada a Biomedicina y Medioambiente (UEQ), 18071-Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Spain
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81
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Martínez‐Aguirre MA, Li Y, Vanthuyne N, Bouteiller L, Raynal M. Dissecting the Role of the Sergeants in Supramolecular Helical Catalysts: From Chain Capping to Intercalation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mayte A. Martínez‐Aguirre
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire Equipe Chimie des Polymères 4 Place Jussieu 75005 Paris France
| | - Yan Li
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire Equipe Chimie des Polymères 4 Place Jussieu 75005 Paris France
| | - Nicolas Vanthuyne
- Aix Marseille Université Centrale Marseille CNRS, iSm2, UMR 7313 13397 Marseille Cedex 20 France
| | - Laurent Bouteiller
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire Equipe Chimie des Polymères 4 Place Jussieu 75005 Paris France
| | - Matthieu Raynal
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire Equipe Chimie des Polymères 4 Place Jussieu 75005 Paris France
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82
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Van Zee NJ, Mabesoone MFJ, Adelizzi B, Palmans ARA, Meijer EW. Biasing the Screw-Sense of Supramolecular Coassemblies Featuring Multiple Helical States. J Am Chem Soc 2020; 142:20191-20200. [PMID: 33169999 PMCID: PMC7705959 DOI: 10.1021/jacs.0c10456] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Indexed: 12/15/2022]
Abstract
By enchaining a small fraction of chiral monomer units, the helical sense of a dynamic polymer constructed from achiral monomer units can be disproportionately biased. This phenomenon, known as the sergeants-and-soldiers (S&S) effect, has been found to be widely applicable to dynamic covalent and supramolecular polymers. However, it has not been exemplified with a supramolecular polymer that features multiple helical states. Herein, we demonstrate the S&S effect in the context of the temperature-controlled supramolecular copolymerization of chiral and achiral biphenyl tetracarboxamides in alkanes. The one-dimensional helical structures presented in this study are unique because they exhibit three distinct helical states, two of which are triggered by coassembling with monomeric water that is codissolved in the solvent. The self-assembly pathways are rationalized using a combination of mathematical fitting and simulations with a thermodynamic mass-balance model. We observe an unprecedented case of an "abnormal" S&S effect by changing the side chains of the achiral soldier. Although the molecular structure of these aggregates remains elusive, the coassembly of water is found to have a profound impact on the helical excess.
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Affiliation(s)
- Nathan J. Van Zee
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
- Chimie
Moléculaire, Macromoléculaire, Matériaux, ESPCI
Paris, Université PSL, CNRS, 75005 Paris, France
| | - Mathijs F. J. Mabesoone
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
| | - Beatrice Adelizzi
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
| | - Anja R. A. Palmans
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
| | - E. W. Meijer
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
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83
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Mabesoone MJ, Palmans ARA, Meijer EW. Solute-Solvent Interactions in Modern Physical Organic Chemistry: Supramolecular Polymers as a Muse. J Am Chem Soc 2020; 142:19781-19798. [PMID: 33174741 PMCID: PMC7705892 DOI: 10.1021/jacs.0c09293] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Indexed: 12/14/2022]
Abstract
Interactions between solvents and solutes are a cornerstone of physical organic chemistry and have been the subject of investigations over the last century. In recent years, a renewed interest in fundamental aspects of solute-solvent interactions has been sparked in the field of supramolecular chemistry in general and that of supramolecular polymers in particular. Although solvent effects in supramolecular chemistry have been recognized for a long time, the unique opportunities that supramolecular polymers offer to gain insight into solute-solvent interactions have become clear relatively recently. The multiple interactions that hold the supramolecular polymeric structure together are similar in strength to those between solute and solvent. The cooperativity found in ordered supramolecular polymers leads to the possibility of amplifying these solute-solvent effects and will shed light on extremely subtle solvation phenomena. As a result, many exciting effects of solute-solvent interactions in modern physical organic chemistry can be studied using supramolecular polymers. Our aim is to put the recent progress into a historical context and provide avenues toward a more comprehensive understanding of solvents in multicomponent supramolecular systems.
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Affiliation(s)
- Mathijs
F. J. Mabesoone
- Institute
for Complex Molecular Systems and the Laboratory of Macromolecular
and Organic Chemistry, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Anja R. A. Palmans
- Institute
for Complex Molecular Systems and the Laboratory of Macromolecular
and Organic Chemistry, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - E. W. Meijer
- Institute
for Complex Molecular Systems and the Laboratory of Macromolecular
and Organic Chemistry, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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84
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Chakraborty S, Khamrui R, Ghosh S. Redox responsive activity regulation in exceptionally stable supramolecular assembly and co-assembly of a protein. Chem Sci 2020; 12:1101-1108. [PMID: 34163877 PMCID: PMC8179030 DOI: 10.1039/d0sc05312k] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Supramolecular assembly of biomolecules/macromolecules stems from the desire to mimic complex biological structures and functions of living organisms. While DNA nanotechnology is already in an advanced stage, protein assembly is still in its infancy as it is a significantly difficult task due to their large molecular weight, conformational complexity and structural instability towards variation in temperature, pH or ionic strength. This article reports highly stable redox-responsive supramolecular assembly of a protein Bovine serum albumin (BSA) which is functionalized with a supramolecular structure directing unit (SSDU). The SSDU consists of a benzamide functionalized naphthalene-diimide (NDI) chromophore which is attached with the protein by a bio-reducible disulfide linker. The SSDU attached protein (NDI-BSA) exhibits spontaneous supramolecular assembly in water by off-set π-stacking among the NDI chromophores, leading to the formation of spherical nanoparticles (diameter: 150–200 nm). The same SSDU when connected with a small hydrophilic wedge (NDI-1) instead of the large globular protein, exhibits a different π-stacking mode with relatively less longitudinal displacement which results in a fibrillar network and hydrogelation. Supramolecular co-assembly of NDI-BSA and NDI-1 (3 : 7) produces similar π-stacking and an entangled 1D morphology. Both the spherical assembly of NDI-BSA or the fibrillar co-assembly of NDI-BSA + NDI-1 (3 : 7) provide sufficient thermal stability to the protein as its thermal denaturation could be completely surpassed while the secondary structure remained intact. However, the esterase like activity of the protein reduced significantly as a result of such supramolecular assembly indicating limited access by the substrate to the active site of the enzyme located in the confined environment. In the presence of glutathione (GSH), a biologically important tri-peptide, due to the cleavage of the disulfide bond, the protein became free and was released, resulting in fully regaining its enzymatic activity. Such supramolecular assembly provided excellent protection to the protein against enzymatic hydrolysis as the relative hydrolysis was estimated to be <30% for the co-assembled protein with respect to the free protein under identical conditions. Similar to bioactivity, the enzymatic hydrolysis also became prominent after GSH-treatment, confirming that the lack of hydrolysis in the supramolecularly assembled state is indeed related to the confinement of the protein in the nanostructure assembly. Supramolecular structure directing unit regulated co-assembly of a protein produces a highly stable fibrillar nanostructure and glutathione responsive release of the protein in its active state.![]()
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Affiliation(s)
- Saptarshi Chakraborty
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja S. C. Mullick Road Kolkata India-700032
| | - Rajesh Khamrui
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja S. C. Mullick Road Kolkata India-700032
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja S. C. Mullick Road Kolkata India-700032
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85
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Dorca Y, Sánchez‐Naya R, Cerdá J, Calbo J, Aragó J, Gómez R, Ortí E, Sánchez L. Impact of Molecular Size and Shape on the Supramolecular Co‐Assembly of Chiral Tricarboxamides: A Comparative Study. Chemistry 2020; 26:14700-14707. [DOI: 10.1002/chem.202002879] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Yeray Dorca
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad Complutense de Madrid 28040 Madrid Spain
| | - Roberto Sánchez‐Naya
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad Complutense de Madrid 28040 Madrid Spain
| | - Jesús Cerdá
- Instituto de Ciencia Molecular (ICMol) Universidad de Valencia c/Catedrático José Beltrán, 2 46980 Paterna Spain
| | - Joaquín Calbo
- Instituto de Ciencia Molecular (ICMol) Universidad de Valencia c/Catedrático José Beltrán, 2 46980 Paterna Spain
| | - Juan Aragó
- Instituto de Ciencia Molecular (ICMol) Universidad de Valencia c/Catedrático José Beltrán, 2 46980 Paterna Spain
| | - Rafael Gómez
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad Complutense de Madrid 28040 Madrid Spain
| | - Enrique Ortí
- Instituto de Ciencia Molecular (ICMol) Universidad de Valencia c/Catedrático José Beltrán, 2 46980 Paterna Spain
| | - Luis Sánchez
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad Complutense de Madrid 28040 Madrid Spain
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86
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Mukherjee A, Ghosh S. Circularly Polarized Luminescence from Chiral Supramolecular Polymer and Seeding Effect. Chemistry 2020; 26:12874-12881. [DOI: 10.1002/chem.202002056] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/09/2020] [Indexed: 11/06/2022]
Affiliation(s)
- Anurag Mukherjee
- School of Applied and Interdisciplinary Sciences Indian Association for the Cultivation of Science 2A and 2B Raja S. C. Mullick Road Kolkata 700032 India
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences Indian Association for the Cultivation of Science 2A and 2B Raja S. C. Mullick Road Kolkata 700032 India
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87
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Sasselli IR, Syrgiannis Z. Small Molecules Organic Co‐Assemblies as Functional Nanomaterials. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ivan R. Sasselli
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE) Basque Research and Technology Alliance (BRTA) Paseo de Miramon 182 20014 Donostia San Sebastián Spain
| | - Zois Syrgiannis
- Centre of Excellence for Nanostructured Materials (CENMAT) INSTM, unit of Trieste, Dipartimento di Scienze Chimiche e Farmaceutiche Università di Trieste via L. Giorgieri 1 34127 Trieste Italy
- Simpson Querrey Institute Northwestern University 303 East Superior Street 60611 Chicago IL USA
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88
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Kashiwagi D, Shen HK, Sim S, Sano K, Ishida Y, Kimura A, Niwa T, Taguchi H, Aida T. Molecularly Engineered "Janus GroEL": Application to Supramolecular Copolymerization with a Higher Level of Sequence Control. J Am Chem Soc 2020; 142:13310-13315. [PMID: 32691585 DOI: 10.1021/jacs.0c05937] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Herein we report the synthesis and isolation of a shape-persistent Janus protein nanoparticle derived from the biomolecular machine chaperonin GroEL (AGroELB) and its application to DNA-mediated ternary supramolecular copolymerization. To synthesize AGroELB with two different DNA strands A and B at its opposite apical domains, we utilized the unique biological property of GroEL, i.e., Mg2+/ATP-mediated ring exchange between AGroELA and BGroELB with their hollow cylindrical double-decker architectures. This exchange event was reported more than 24 years ago but has never been utilized for molecular engineering of GroEL. We leveraged DNA nanotechnology to purely isolate Janus AGroELB and succeeded in its precision ternary supramolecular copolymerization with two DNA comonomers, A** and B*, that are partially complementary to A and B in AGroELB, respectively, and programmed to self-dimerize on the other side. Transmission electron microscopy allowed us to confirm the formation of the expected dual-periodic copolymer sequence -(B*/BGroELA/A**/A**/AGroELB/B*)- in the form of a laterally connected lamellar assembly rather than a single-chain copolymer.
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Affiliation(s)
- Daiki Kashiwagi
- Department of Chemistry and Biotechnology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hao K Shen
- Department of Chemistry and Biotechnology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Seunghyun Sim
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Koki Sano
- RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yasuhiro Ishida
- RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Ayumi Kimura
- Institute of Engineering Innovation, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Tatsuya Niwa
- Cell Biology Center, Institute of Innovative Research, Tokyo Institute of Technology, Midori-ku, Yokohama 226-8503, Japan
| | - Hideki Taguchi
- Cell Biology Center, Institute of Innovative Research, Tokyo Institute of Technology, Midori-ku, Yokohama 226-8503, Japan
| | - Takuzo Aida
- Department of Chemistry and Biotechnology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.,RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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89
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Sarkar A, Behera T, Sasmal R, Capelli R, Empereur-Mot C, Mahato J, Agasti SS, Pavan GM, Chowdhury A, George SJ. Cooperative Supramolecular Block Copolymerization for the Synthesis of Functional Axial Organic Heterostructures. J Am Chem Soc 2020; 142:11528-11539. [PMID: 32501694 DOI: 10.1021/jacs.0c04404] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Supramolecular block copolymerzation with optically or electronically complementary monomers provides an attractive bottom-up approach for the non-covalent synthesis of nascent axial organic heterostructures, which promises to deliver useful applications in energy conversion, optoelectronics, and catalysis. However, the synthesis of supramolecular block copolymers (BCPs) constitutes a significant challenge due to the exchange dynamics of non-covalently bound monomers and hence requires fine microstructure control. Furthermore, temporal stability of the segmented microstructure is a prerequisite to explore the applications of functional supramolecular BCPs. Herein, we report the cooperative supramolecular block copolymerization of fluorescent monomers in solution under thermodynamic control for the synthesis of axial organic heterostructures with light-harvesting properties. The fluorescent nature of the core-substituted naphthalene diimide (cNDI) monomers enables a detailed spectroscopic probing during the supramolecular block copolymerization process to unravel a nucleation-growth mechanism, similar to that of chain copolymerization for covalent block copolymers. Structured illumination microscopy (SIM) imaging of BCP chains characterizes the segmented microstructure and also allows size distribution analysis to reveal the narrow polydispersity (polydispersity index (PDI) ≈ 1.1) for the individual block segments. Spectrally resolved fluorescence microscopy on single block copolymerized organic heterostructures shows energy migration and light-harvesting across the interfaces of linearly connected segments. Molecular dynamics and metadynamics simulations provide useful mechanistic insights into the free energy of interaction between the monomers as well as into monomer exchange mechanisms and dynamics, which have a crucial impact on determining the copolymer microstructure. Our comprehensive spectroscopic, microscopic, and computational analyses provide an unambiguous structural, dynamic, and functional characterization of the supramolecular BCPs. The strategy presented here is expected to pave the way for the synthesis of multi-component organic heterostructures for various functions.
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Affiliation(s)
- Aritra Sarkar
- New Chemistry Unit and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Tejmani Behera
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Ranjan Sasmal
- New Chemistry Unit and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Riccardo Capelli
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi24, 10129 Torino, Italy
| | - Charly Empereur-Mot
- Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, Galleria 2, Via Cantonale 2c, CH-6928 Manno, Switzerland
| | - Jaladhar Mahato
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Sarit S Agasti
- New Chemistry Unit and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Giovanni M Pavan
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi24, 10129 Torino, Italy.,Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, Galleria 2, Via Cantonale 2c, CH-6928 Manno, Switzerland
| | - Arindam Chowdhury
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Subi J George
- New Chemistry Unit and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
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90
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Kimura Y, Takenaka M, Ouchi M, Terashima T. Self-Sorting of Amphiphilic Block-Pendant Homopolymers into Sphere or Rod Micelles in Water. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00620] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yoshihiko Kimura
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Mikihito Takenaka
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
- RIKEN Spring-8 Center, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Makoto Ouchi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takaya Terashima
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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91
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92
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Helical supramolecular polymers with rationally designed binding sites for chiral guest recognition. Nat Commun 2020; 11:2311. [PMID: 32385267 PMCID: PMC7210886 DOI: 10.1038/s41467-020-16127-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 04/07/2020] [Indexed: 01/31/2023] Open
Abstract
Since various helical supramolecular polymers became available, their application to molecular chirality recognition have been anticipated but not extensively studied. So far, only a few examples of chiral reactions have been reported, but none for chiral separation. Here, we report the application of a helical supramolecular polymer to the enantio-separation of chiral guest molecules. The monomer of this supramolecular polymer is the salt-pair of a dendritic carboxylic acid with an enantiopure amino alcohol. In an apolar solvent, this salt-pair stacks via hydrogen bonds to form a helical polymer. In conjunction with this carboxylic acid, various amino alcohols afford supramolecular polymers, whose helical handedness is determined by the stereochemistry of the amino alcohols. When two salts with the same chirality are mixed, they undergo copolymerization, while those with opposite chirality do not. Owing to this stereoselective copolymerizability, the helical supramolecular polymer could bias the enantiomeric composition of chiral amino alcohols. Since various helical supramolecular polymers became available, their application in molecular chirality recognition have been anticipated but not extensively studied. Here, the authors report the application of a helical supramolecular polymer for the enantio separation of chiral guest molecules.
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93
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Gruschwitz FV, Klein T, Catrouillet S, Brendel JC. Supramolecular polymer bottlebrushes. Chem Commun (Camb) 2020; 56:5079-5110. [PMID: 32347854 DOI: 10.1039/d0cc01202e] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The field of supramolecular chemistry has long been known to generate complex materials of different sizes and shapes via the self-assembly of single or multiple low molar mass building blocks. Matching the complexity found in natural assemblies, however, remains a long-term challenge considering its precision in organizing large macromolecules into well-defined nanostructures. Nevertheless, the increasing understanding of supramolecular chemistry has paved the way to several attempts in arranging synthetic macromolecules into larger ordered structures based on non-covalent forces. This review is a first attempt to summarize the developments in this field, which focus mainly on the formation of one-dimensional, linear, cylindrical aggregates in solution with pendant polymer chains - therefore coined supramolecular polymer bottlebrushes in accordance with their covalent equivalents. Distinguishing by the different supramolecular driving forces, we first describe systems based on π-π interactions, which comprise, among others, the well-known perylene motif, but also the early attempts using cyclophanes. However, the majority of reported supramolecular polymer bottlebrushes are formed by hydrogen bonds as they can for example be found in linear and cyclic peptides, as well as so called sticker molecules containing multiple urea groups. Besides this overview on the reported motifs and their impact on the resulting morphology of the polymer nanostructures, we finally highlight the potential benefits of such non-covalent interactions and refer to promising future directions of this still mostly unrecognized field of supramolecular research.
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Affiliation(s)
- Franka V Gruschwitz
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany.
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94
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Controlled Synthesis of PdII and PtII Supramolecular Copolymer with Sequential Multiblock and Amplified Phosphorescence. Chem 2020. [DOI: 10.1016/j.chempr.2020.01.021] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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95
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Sarkar A, Sasmal R, Empereur-mot C, Bochicchio D, Kompella SVK, Sharma K, Dhiman S, Sundaram B, Agasti SS, Pavan GM, George SJ. Self-Sorted, Random, and Block Supramolecular Copolymers via Sequence Controlled, Multicomponent Self-Assembly. J Am Chem Soc 2020; 142:7606-7617. [DOI: 10.1021/jacs.0c01822] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Aritra Sarkar
- New Chemistry Unit and School of Advanced Materials (SAMAt), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Ranjan Sasmal
- New Chemistry Unit and School of Advanced Materials (SAMAt), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Charly Empereur-mot
- Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, Galleria 2, Via Cantonale 2c, CH-6928 Manno, Switzerland
| | - Davide Bochicchio
- Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, Galleria 2, Via Cantonale 2c, CH-6928 Manno, Switzerland
| | - Srinath V. K. Kompella
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Kamna Sharma
- New Chemistry Unit and School of Advanced Materials (SAMAt), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Shikha Dhiman
- New Chemistry Unit and School of Advanced Materials (SAMAt), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Balasubramanian Sundaram
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Sarit S. Agasti
- New Chemistry Unit and School of Advanced Materials (SAMAt), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Giovanni M. Pavan
- Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, Galleria 2, Via Cantonale 2c, CH-6928 Manno, Switzerland
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi24, 10129 Torino, Italy
| | - Subi J. George
- New Chemistry Unit and School of Advanced Materials (SAMAt), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
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96
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Better Together: Enhanced Phosphorescence and Co-assembly of Pt-Pd Complexes. Chem 2020. [DOI: 10.1016/j.chempr.2020.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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97
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Weyandt E, Ter Huurne GM, Vantomme G, Markvoort AJ, Palmans ARA, Meijer EW. Photodynamic Control of the Chain Length in Supramolecular Polymers: Switching an Intercalator into a Chain Capper. J Am Chem Soc 2020; 142:6295-6303. [PMID: 32167302 PMCID: PMC7118707 DOI: 10.1021/jacs.0c00858] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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Supramolecular systems are intrinsically
dynamic and sensitive
to changes in molecular structure and external conditions. Because
of these unique properties, strategies to control polymer length,
composition, comonomer sequence, and morphology have to be developed
for sufficient control over supramolecular copolymerizations. We designed
photoresponsive, mono acyl hydrazone functionalized benzene-1,3,5-tricarboxamide
(m-BTA) monomers that play a dual role in the coassembly
with achiral alkyl BTAs (a-BTA). In the E isomer form, the chiral m-BTA monomers intercalate
into stacks of a-BTA and dictate the chirality of the
helices. Photoisomerization to the Z isomer transforms
the intercalator into a chain capper, allowing dynamic shortening
of chain length in the supramolecular aggregates. We combine optical
spectroscopy and light-scattering experiments with theoretical modeling
to show the reversible decrease in length when switching from the E to Z isomer of m-BTA in
the copolymer with inert a-BTA. With a mass-balance thermodynamic
model, we gain additional insights into the composition of copolymers
and length distributions of the species over a broad range of concentrations
and mixing ratios of a-BTA/m-BTA. Moreover,
the model was used to predict the impact of an additive (chain capper
and intercalator) on the chain length over a range of concentrations,
showing a remarkable amplification of efficiency at high concentrations.
By employing a stimuli-responsive comonomer in a mostly inert polymer,
we can cooperatively amplify the effect of the switching and obtain
photocontrol of polymer length. Moreover, this dynamic decrease in
chain length causes a macroscopic gel-to-sol phase transformation
of the copolymer gel, although 99.4% of the organogel is inert to
the light stimulus.
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Affiliation(s)
- Elisabeth Weyandt
- Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.,Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Gijs M Ter Huurne
- Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.,Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Ghislaine Vantomme
- Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.,Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Albert J Markvoort
- Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.,Computational Biology Group, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Anja R A Palmans
- Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.,Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - E W Meijer
- Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.,Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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98
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Li Y, Hammoud A, Bouteiller L, Raynal M. Emergence of Homochiral Benzene-1,3,5-tricarboxamide Helical Assemblies and Catalysts upon Addition of an Achiral Monomer. J Am Chem Soc 2020; 142:5676-5688. [PMID: 32115947 DOI: 10.1021/jacs.9b13157] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Chirality amplification refers to the ability of a small chiral bias to fully control the main chain helicity of polymers and assemblies. Further implementation of functional chirally amplified helices as switchable asymmetric catalysts, chiral sensors, and circularly polarized light emitters will require a greater control of the energetics governing these chirality amplification effects. In this work, we report on the counterintuitive ability of an achiral molecule to suppress conformational defects in supramolecular helices, thus leading to the emergence of homochirality in a system containing a very small chiral bias. We focus our investigation on supramolecular helices composed of an achiral benzene-1,3,5-tricarboxamide (BTA) ligand, coordinated to copper, and an enantiopure BTA comonomer. Amplification of chirality as probed by varying the amount (sergeants and soldiers effect) or the optical purity (diluted majority-rules effect) of the enantiopure comonomer are modest in this initial system. However, both effects are hugely enhanced upon addition of a second achiral BTA monomer, leading to a perfect control of the helicity either by means of a remarkably low amount of sergeants (0.5%) or a small bias from a racemic mixture of enantiopure comonomers (10% ee). Such an enhancement in the amplification of chirality is only achieved by mixing the three components, i.e. the two achiral and the enantiopure comonomers, highlighting a synergistic effect upon coassembly of the three monomers. Investigation of the role of the achiral additive by multifarious analytical techniques supports its ability to stabilize the helical coassemblies and suppress helix reversals: i.e., conformational defects. Implementation of these helical copper precatalysts in the hydrosilylation of 1-(4-nitrophenyl)ethanone confirms that the effect of the achiral BTA additive is also operative under the conditions of the catalytic experiment. A highly enantioenriched product (90% ee) is produced by a supramolecular catalyst operating with ppm levels of chiral species.
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Affiliation(s)
- Yan Li
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 Place Jussieu, 75005 Paris, France
| | - Ahmad Hammoud
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 Place Jussieu, 75005 Paris, France
| | - Laurent Bouteiller
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 Place Jussieu, 75005 Paris, France
| | - Matthieu Raynal
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 Place Jussieu, 75005 Paris, France
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99
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Praveen VK, Vedhanarayanan B, Mal A, Mishra RK, Ajayaghosh A. Self-Assembled Extended π-Systems for Sensing and Security Applications. Acc Chem Res 2020; 53:496-507. [PMID: 32027125 DOI: 10.1021/acs.accounts.9b00580] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Molecules and materials derived from self-assembled extended π-systems have strong and reversible optical properties, which can be modulated with external stimuli such as temperature, mechanical stress, ions, the polarity of the medium, and so on. In many cases, absorption and emission responses of self-assembled supramolecular π-systems are manifested several times higher when compared with the individual molecular building blocks. These properties of molecular assemblies encourage scientists to have a deeper understanding of their design to explore them for suitable optoelectronic applications. Therefore, it is important to bring in highly responsive optical features in π-systems, for which it is necessary to modify their structures by varying the conjugation length and by introducing donor-acceptor functional groups. Using noncovalent forces, π-systems can be put together to form assemblies of different shapes and sizes with varied optical band gaps through controlling intermolecular electronic interactions. In addition, using directional forces, it is possible to bring anisotropy to the self-assembled nanostructures, facilitating efficient exciton migration, resulting in the modulation of optical and electron-transport properties. In this Account, we mainly summarize our findings with optically tunable self-assemblies of extended π-systems such as p-phenylenevinylenes (PVs), p-phenyleneethynylenes (PEs), and diketopyrrolopyrroles (DPPs) as different stimuli-responsive platforms to develop sensors and security materials. We start with how PV self-assemblies and their coassemblies with appropriate electron-deficient systems can be used for the sensing of analytes in contact mode or in the vapor phase. For example, whereas the PV having electron-deficient terminal groups has high sensitivity toward trinitrotoluene (TNT) in contact mode, the supercoiled fibers formed by the coassembly of self-sorted stacks of C3-symmetrical PV and C3-symmetrical electron-deficient perylene bisimide are capable of sensing vapors of nitrobenzene and o-toluidine. The power of different functional groups in combination with PVs has been further illustrated by attaching CO2-sensitive tertiary amine moieties to a cyano-substituted PV, which allowed the bimodal detection of CO2 using fluorescence and Raman spectroscopy. Interestingly, the functionalization of PVs with terminal amide groups and chiral alkoxy side chains provided a mechanochromic system that allows self-erasable imaging. Whereas PVs exhibit quenching of fluorescence in most cases during self-assembly, PE derivatives exhibit aggregation-induced emission. This property of PEs has been exploited for the development of stimuli-responsive security materials, especially for currency and documents. For instance, the blue fluorescence of a PE attached to hydrophilic oxyethylene side chains coated on a filter paper upon contact with water changes to cyan emission due to the change in the molecular packing. Interestingly, the molecular packing of a Bodipy-attached PE-based gelator allowed a stress-induced change in the emission behavior, resulting in strong near-infrared (NIR) emission upon the application of mechanical stress or gelation. Finally, the use of DPP-based π-systems for the development of NIR transparent optical filters that block UV-vis light and their security- and forensic-related applications are described. These selected examples of the π-system self-assemblies provide an idea of the current status and future opportunities for scientists interested in this field of self-assembly and soft materials research.
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Affiliation(s)
- Vakayil K. Praveen
- Photosciences and Photonics Section, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Balaraman Vedhanarayanan
- Photosciences and Photonics Section, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Arindam Mal
- Photosciences and Photonics Section, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Rakesh K. Mishra
- Photosciences and Photonics Section, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India
| | - Ayyappanpillai Ajayaghosh
- Photosciences and Photonics Section, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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100
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Biot N, Bonifazi D. Concurring Chalcogen‐ and Halogen‐Bonding Interactions in Supramolecular Polymers for Crystal Engineering Applications. Chemistry 2020; 26:2904-2913. [DOI: 10.1002/chem.201904762] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Nicolas Biot
- School of Chemistry Cardiff University Park Place CF10 3AT Cardiff UK
| | - Davide Bonifazi
- School of Chemistry Cardiff University Park Place CF10 3AT Cardiff UK
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