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Lehmann M, Reber L, Fink L, Adelmann J. A Donor-Acceptor Molecular Octopus and the CLICK Procedure in Columnar Liquid Crystal Phases. Chemistry 2024:e202401349. [PMID: 38970416 DOI: 10.1002/chem.202401349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 06/22/2024] [Accepted: 07/01/2024] [Indexed: 07/08/2024]
Abstract
Two star-shaped mesogens with a (meso-tetraphenylporphinato) zinc (II) core and bithiophene conjugated arms with 3,4,5-trisdodecyloxyphenyl periphery were synthesized. One of these molecules was decorated with four fullerenes via an aliphatic spacer. This is the sterically overcrowded compound with an octapodal morphology. The other star lacks the fullerenes and provides free space between the conjugated arms. This mesogen does not aggregate in solution, but in solid state it forms a hexagonal columnar and a highly ordered oblique helical columnar phase, while the octopus molecule assembles in an amorphous solid. Photophysical studies of the octapodal compound in solution and the solid thin film reveal the formation of J-type aggregates, in which the interaction between donors (porphyrin) and acceptors (fullerene) dominates leading to absorption bands in the NIR region of the spectra. The mixture of both compounds results in a self-assembly which is called the Click procedure. Fullerenes of the octopus nanosegregate in the pockets of the star mesogens generating hexagonal columnar structures with a regular stacking along the columnar axis. Thus providing free space is a tool to control the competition between supramolecular interactions and nanosegregation. Such liquid-crystalline donor-acceptor structures may play a role in future LC photovoltaic applications.
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Affiliation(s)
- Matthias Lehmann
- Institute for Organic Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, 97074, Würzburg, Germany
- Center for Nanosystems Chemistry, Bavarian Polymer Institute, Theodor-Boveri-Weg 4, 97074, Würzburg, Germany
| | - Lisa Reber
- Institute for Organic Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Leonard Fink
- Institute for Organic Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Juliane Adelmann
- Institute for Organic Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, 97074, Würzburg, Germany
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Ovchenkova EN, Motorina EV, Bichan NG, Gostev FE, Lomova TN. Self-assembling cobalt(II) porphyrin - fullero[60]pyrrolidine triads. Synthesis and spectral properties in the ground and excited state. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Menon A, Münich PW, Wagner P, Officer DL, Guldi DM. Amphiphilic Zinc Porphyrin Single-Walled Carbon Nanotube Hybrids: Efficient Formation and Excited State Charge Transfer Studies. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2005648. [PMID: 33458948 DOI: 10.1002/smll.202005648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/10/2020] [Indexed: 06/12/2023]
Abstract
Herein, the microscopic and spectroscopic characterization of a novel non-covalent electron donor-acceptor system, in which three different metalloporphyrins (1, 2, and 3) play the dual role of light harvester and electron donor with SWCNTs as electron acceptor, is described. To this end, microscopy, that is, atomic force microscopy (AFM) and transmission electron microscopy (TEM) corroborate the formation of 1-SWCNT, 2-SWCNT, and 3-SWCNT. Spectroscopy by means of Raman, fluorescence, and transient absorption spectroscopy confirmed efficient charge-transfer interaction from photoexcited metalloporphyrins to SWCNTs in the ground and excited state of 1-SWCNT, 2-SWCNT, and 3-SWCNT. The complementary use of spectroelectrochemical and transient absorption measurements substantiates the formation of one-electron oxidized metalloporphyrins after photoexcitation. Multiwavelength global analysis provides insights into the charge-separation and recombination processes in 1-SWCNT, 2-SWCNT, and 3-SWCNT upon photoexcitation. Notably, both the charge-separation and recombination dynamics are fastest in 2-SWCNT. Importantly, the strongest interactions in the steady-state experiments are associated with the fastest excited state decay in the time-resolved measurements.
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Affiliation(s)
- Arjun Menon
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials, Friedrich-Alexander University of Erlangen-Nürnberg, Egerlandstrasse 3, 91058, Erlangen, Germany
| | - Peter W Münich
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials, Friedrich-Alexander University of Erlangen-Nürnberg, Egerlandstrasse 3, 91058, Erlangen, Germany
| | - Pawel Wagner
- ARC Centre of Excellence for Electromaterials Science and Intelligent Polymer Research Institute, AIIM Faculty, University of Wollongong, Northfields Avenue, Wollongong, NSW, 2522, Australia
| | - David L Officer
- ARC Centre of Excellence for Electromaterials Science and Intelligent Polymer Research Institute, AIIM Faculty, University of Wollongong, Northfields Avenue, Wollongong, NSW, 2522, Australia
| | - Dirk M Guldi
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials, Friedrich-Alexander University of Erlangen-Nürnberg, Egerlandstrasse 3, 91058, Erlangen, Germany
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Grafting Dendrons onto Pillar[5]Arene Scaffolds. Molecules 2021; 26:molecules26082358. [PMID: 33919656 PMCID: PMC8073356 DOI: 10.3390/molecules26082358] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/14/2021] [Accepted: 04/14/2021] [Indexed: 11/16/2022] Open
Abstract
With their ten peripheral substituents, pillar[5]arenes are attractive compact scaffolds for the construction of nanomaterials with a controlled number of functional groups distributed around the macrocyclic core. This review paper is focused on the functionalization of pillar[5]arene derivatives with small dendrons to generate dendrimer-like nanomaterials and bioactive compounds. Examples include non-viral gene vectors, bioactive glycoclusters, and liquid-crystalline materials.
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Nayak S, Ray A, Bhattacharya S. Size selective supramolecular interaction upon molecular complexation of a designed porphyrin with C60 and C70 in solution. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114367] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Morisue M, Saito G, Sasada D, Umeyama T, Imahori H, Mitamura K, Masunaga H, Hoshino T, Sakurai S, Sasaki S. Glassy Porphyrin/C 60 Composites: Morphological Engineering of C 60 Fullerene with Liquefied Porphyrins. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:13583-13590. [PMID: 33147035 DOI: 10.1021/acs.langmuir.0c02427] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Morphological control of C60 fullerene using liquefied porphyrins (1 and 2) as the host matrices was explored. Slow evaporation of the solvent of the equimolar mixture of porphyrin and C60 in toluene afforded the porphyrin/C60 composite with a 3:1 molar ratio. The stoichiometric binding behaviors suggest that specific porphyrin-C60 interactions operate the formation of the porphyrin/C60 composites, as corroborated by spectroscopic and thermal properties, and glazing-incidence wide-angle X-ray diffraction. Under the bulk conditions, the conventional thermodynamic advantage of multiple binding cooperativity for molecular recognition is unlikely to explain the stoichiometric binding behaviors. Instead, we propose a size-matching effect on the porphyrin-C60 interaction in the bulk porphyrin matrices, i.e., "supramolecular solvation". The glassy nature of the porphyrin matrices was transmitted to C60 through the specific interaction, and the porphyrin/C60 composites adopted glassy states at room temperature.
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Affiliation(s)
- Mitsuhiko Morisue
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Genki Saito
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Daiki Sasada
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Tomokazu Umeyama
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hiroshi Imahori
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Koji Mitamura
- Electronic Materials Research Division, Osaka Research Institute of Industrial Science and Technology, 1-6-50, Morinomiya, Joto-ku, Osaka 536-8553, Japan
| | - Hiroyasu Masunaga
- Japan Synchrotron Radiation Research Institute (JASRI/SPring-8), Hyogo 679-5198, Japan
| | - Taiki Hoshino
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Shinichi Sakurai
- Faculty of Fiber Science and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Sono Sasaki
- Faculty of Fiber Science and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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Fathalla M. Synthesis and characterization of a porphyrin-crown ether conjugate as a potential intermediate for drug delivery application. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424620500546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The development of synthetic strategies for functional building units plays a central role in supramolecular chemistry. Both porphyrin and crown ethers have attracted the attention of researchers worldwide owing to their unique properties. It is envisioned that the integration of the two molecules will result in hybrid materials with potential applications in many fields. In the present study, a new porphyrin derivative 3 appended with four 18-crown-6 (18C6) ether moieties was synthesized through the Suzuki-Miyaura coupling of boronic ester porphyrin 1 and 4-bromobenzo-18-crown-6 2 in 80% yield. Porphyrin 3 was fully characterized by 1H/[Formula: see text]C NMR spectroscopy and high resolution mass spectrometry. The tendency of the 18C6 to form host-guest complexes with ammonium cations was exploited to assemble cation responsive hybrid material of porphyrin 3 and ammonium immobilized mesoporous silica nanoparticles (MSNs). Furthermore, the potential application of the 3/MSNs conjugate as a cation-responsive drug delivery vehicle was investigated in solution by UV-vis and fluorescence spectroscopies.
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Affiliation(s)
- Maher Fathalla
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah 170, Saudi Arabia
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Stasyuk AJ, Stasyuk OA, Solà M, Voityuk AA. Electron Transfer in a Li +-Doped Zn-Porphyrin-[10]CPP⊃Fullerene Junction and Charge-Separated Bands with Opposite Response to Polar Environments. J Phys Chem B 2020; 124:9095-9102. [PMID: 32915570 DOI: 10.1021/acs.jpcb.0c05204] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Recently synthesized porphyrin-cycloparaphenylene (ZnP-[10]CPP) junction is a powerful platform to develop useful organic photovoltaic devices. In this work, we computationally study photoinduced electron transfer processes in the supramolecular complex ZnP-[10]CPP⊃C60 and its Li+-doped derivative. The most striking finding is charge-separated (CS) bands in ZnP-[10]CPP⊃Li+@C60 with opposite response to solvent polarity. Besides CS bands that demonstrate a bathochromic shift, there exist CS transitions showing a rarely observed hypsochromic shift. The rates of energy transfer, charge separation, and charge recombination in the supramolecular complexes are computed by using the semiclassical approach. These estimates suggest that the both types of CS states can be efficiently populated in polar media by decay of locally excited states.
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Affiliation(s)
- A J Stasyuk
- Institut de Quı́mica Computacional and Departament de Quı́mica, Universitat de Girona, C/ Maria Aurèlia Capmany 69, 17003 Girona, Spain
| | - O A Stasyuk
- Institut de Quı́mica Computacional and Departament de Quı́mica, Universitat de Girona, C/ Maria Aurèlia Capmany 69, 17003 Girona, Spain
| | - M Solà
- Institut de Quı́mica Computacional and Departament de Quı́mica, Universitat de Girona, C/ Maria Aurèlia Capmany 69, 17003 Girona, Spain
| | - A A Voityuk
- Institut de Quı́mica Computacional and Departament de Quı́mica, Universitat de Girona, C/ Maria Aurèlia Capmany 69, 17003 Girona, Spain.,Institució Catalana de Recerca i Estudis Avancats (ICREA), 08010 Barcelona, Spain
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Zatsikha YV, Shamova LI, Blesener TS, Herbert DE, Nemykin VN. Rigid, yet flexible: formation of unprecedented silver MB-DIPY dimers with orthogonal chromophore geometry. Dalton Trans 2020; 49:5034-5038. [DOI: 10.1039/d0dt00927j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Unprecedented for BODIPY/DIPY and aza-BODIPY/azaDIPY chemistry, MB-DIPY2Ag2 dimers with a twisted chromophore geometry were prepared and characterized by spectroscopy, X-ray crystallography, and DFT calculations.
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