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Phenylene-linked tetrapyrrole arrays containing free base and diverse metal chelate forms – Versatile synthetic architectures for catalysis and artificial photosynthesis. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214278] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sharma VK, Mahammed A, Mizrahi A, Morales M, Fridman N, Gray HB, Gross Z. Dimeric Corrole Analogs of Chlorophyll Special Pairs. J Am Chem Soc 2021; 143:9450-9460. [PMID: 34014656 PMCID: PMC8249354 DOI: 10.1021/jacs.1c02362] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Chlorophyll special pairs in photosynthetic reaction centers function as both exciton acceptors and primary electron donors. Although the macrocyclic natural pigments contain Mg(II), the central metal in most synthetic analogs is Zn(II). Here we report that insertion of either Al(III) or Ga(III) into an imidazole-substituted corrole affords an exceptionally robust photoactive dimer. Notably, attractive electronic interactions between dimer subunits are relatively strong, as documented by signature changes in NMR and electronic absorption spectra, as well as by cyclic voltammetry, where two well-separated reversible redox couples were observed. EPR spectra of one-electron oxidized dimers closely mimic those of native special pairs, and strong through-space interactions between corrole subunits inferred from spectroscopic and electrochemical data are further supported by crystal structure analyses (3 Å interplanar distances, 5 Å lateral shifts, and 6 Å metal to metal distances).
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Affiliation(s)
- Vinay K. Sharma
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Atif Mahammed
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Amir Mizrahi
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 32000, Israel
- Department of Chemistry, Nuclear Research Center Negev, Beer Sheva, 9001, Israel
| | - Maryann Morales
- Beckman Institute, California Institute of Technology, Pasadena, California 91125, United States
| | - Natalia Fridman
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Harry B. Gray
- Beckman Institute, California Institute of Technology, Pasadena, California 91125, United States
| | - Zeev Gross
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 32000, Israel
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Yamashita K, Kuramochi N, Pham Qui Van H, Furutani K, Ogawa T, Sugiura K. Efficient Synthesis of Arylenedioxy‐Bridged Porphyrin Dimers through Catalyst‐Free Nucleophilic Aromatic Substitution. Chempluschem 2020. [DOI: 10.1002/cplu.201900670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Ken‐ichi Yamashita
- Department of Chemistry Graduate School of Science and Engineering Tokyo Metropolitan University Minami-Osawa, Hachioji Tokyo 192-0397 Japan
- Department of Chemistry Graduate School of Science Osaka University Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Narumi Kuramochi
- Department of Chemistry Graduate School of Science and Engineering Tokyo Metropolitan University Minami-Osawa, Hachioji Tokyo 192-0397 Japan
| | - Hang Pham Qui Van
- Department of Chemistry Graduate School of Science and Engineering Tokyo Metropolitan University Minami-Osawa, Hachioji Tokyo 192-0397 Japan
| | - Kazuhiro Furutani
- Department of Chemistry Graduate School of Science Osaka University Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Takuji Ogawa
- Department of Chemistry Graduate School of Science Osaka University Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Ken‐ichi Sugiura
- Department of Chemistry Graduate School of Science and Engineering Tokyo Metropolitan University Minami-Osawa, Hachioji Tokyo 192-0397 Japan
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Gao D, Aly SM, Karsenti PL, Harvey PD. What does it take to induce equilibrium in bidirectional energy transfers? Phys Chem Chem Phys 2018; 20:13682-13692. [PMID: 29745390 DOI: 10.1039/c7cp07879j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Two dyads built with a co-facial slipped bis(zinc(ii)porphyrin), a free base and a bridge, [Zn2]-bridge-[Fb] (bridge = C6H4C[triple bond, length as m-dash]C, 1 and C6H4C[triple bond, length as m-dash]CC6H4, 2), exhibit S1 energy equilibrium [Zn2]* ↔ [Fb]* at 298 K, an extremely rare situation, which depends on the degree of MO coupling between the units. At 77 K, 2 becomes bi-directional due to the two large C6H4-[Zn2] and C6H4-[Fb] dihedral angles.
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Affiliation(s)
- Di Gao
- Departement de chimie, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada.
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Langlois A, Camus JM, Karsenti PL, Guilard R, Harvey PD. Metal Dependence on the Bidirectionality and Reversibility of the Singlet Energy Transfer in Artificial Special Pair-Containing Dyads. Inorg Chem 2017; 56:2506-2517. [DOI: 10.1021/acs.inorgchem.6b02684] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Adam Langlois
- Département
de Chimie, Université de Sherbrooke, Sherbrooke J1K 2R1, PQ, Canada
| | - Jean-Michel Camus
- Institut
de Chimie Moléculaire de l’Université de Bourgogne,
UMR CNRS 6302,Univ. Bourgogne Franche-Comté, 9 Avenue Alain Savary, BP 47870-21078 Dijon, France
| | | | - Roger Guilard
- Institut
de Chimie Moléculaire de l’Université de Bourgogne,
UMR CNRS 6302,Univ. Bourgogne Franche-Comté, 9 Avenue Alain Savary, BP 47870-21078 Dijon, France
| | - Pierre D. Harvey
- Département
de Chimie, Université de Sherbrooke, Sherbrooke J1K 2R1, PQ, Canada
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Agnihotri N, Steer RP. Time dependent DFT investigation of the optical properties of artificial light harvesting special pairs. Phys Chem Chem Phys 2016; 18:15337-51. [DOI: 10.1039/c6cp00300a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Simulated absorption spectra of (ZnTriPP)2DPB dimer in which Q band is enhanced 50 times for visibility.
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Affiliation(s)
- Neha Agnihotri
- Department of Physics
- Indian Institute of Technology (BHU)
- Varanasi-221005
- India
| | - Ronald P. Steer
- Department of Chemistry
- University of Saskatchewan
- Saskatoon
- Canada
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Langlois A, Harvey PD. Maple™-assisted calculations of the J-integral: a key parameter for the understanding of excited state energy transfer in porphyrins and other chromophores. J PORPHYR PHTHALOCYA 2014. [DOI: 10.1142/s1088424614500400] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The spectral overlap between the emission of a donor molecule and the absorption of an acceptor molecule, quantifiable using the J-integral calculation, is a parameter of extreme importance when studying the excited state energy transfer by either the Főrster or Dexter mechanism. Despite its extreme importance in both mechanisms, it is often misinterpreted, approximated or incorrectly calculated. The calculation of the J-integral is not trivial especially when one wishes to carry out the calculation on measured spectroscopic data. A detailed description for the correct calculation of the J-integral is herein reported and presents a Maple™ assisted template that is capable of performing this calculation in the two different energy scales (nm and cm-1) to yield the value of the J-integral in given units. Specific examples using porphyrin-containing compounds are provided. This Maple™ program is flexible and can be easily adapted to the needs of a researcher. A call for the standardization of the calculation of the J-integral for the facile comparison with other overlap integrals found in the literature is made.
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Affiliation(s)
- Adam Langlois
- Département de chimie, Université de Sherbrooke, 2500 Boulevard de l'Université, Sherbrooke, Québec J1K 2R1, Canada
| | - Pierre D. Harvey
- Département de chimie, Université de Sherbrooke, 2500 Boulevard de l'Université, Sherbrooke, Québec J1K 2R1, Canada
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Abdelhameed M, Langlois A, Karsenti PL, Richeter S, Ruppert R, Harvey PD. Ultrafast energy transfer in a Pd(ii)-bridged bisporphyrin dyad. Chem Commun (Camb) 2014; 50:14609-12. [DOI: 10.1039/c4cc05898d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Schwalbe M, Wrzolek P, Lal G, Braun B. High‐Yielding Synthesis of a Hetero‐Pacman Compound and the Characterization of Intermediates and Side‐Products. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402459] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Matthias Schwalbe
- Institute of Chemistry, Humboldt‐Universität zu Berlin, Brook‐Taylor‐St. 2, 12489 Berlin, Germany, http://www.chemie.hu‐berlin.de/aglimberg/mschwalbe/ index.html
| | - Pierre Wrzolek
- Institute of Chemistry, Humboldt‐Universität zu Berlin, Brook‐Taylor‐St. 2, 12489 Berlin, Germany, http://www.chemie.hu‐berlin.de/aglimberg/mschwalbe/ index.html
| | - Garima Lal
- Institute of Chemistry, Humboldt‐Universität zu Berlin, Brook‐Taylor‐St. 2, 12489 Berlin, Germany, http://www.chemie.hu‐berlin.de/aglimberg/mschwalbe/ index.html
| | - Beatrice Braun
- Institute of Chemistry, Humboldt‐Universität zu Berlin, Brook‐Taylor‐St. 2, 12489 Berlin, Germany, http://www.chemie.hu‐berlin.de/aglimberg/mschwalbe/ index.html
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Abstract
Plants and photosynthetic bacteria obtain their energy from sunlight or surrounding radiation. Their photosynthetic membranes are composed of a much elaborated series of antenna molecules based on chlorophylls or bacteriochlorophylls, carotenoids playing multiple roles, various electron transport accessories, and central special pairs. The latter components are the most difficult to mimic with exactitude because the structure−property relationship depends on many factors including interplanar distance, slip angle, substituents, metal, and axial ligand. To this list of factors to control with quasi-perfection, one should also add the thermal activation (i.e., temperature). Over the past 15 years or so (2001–2013), an intensive collaboration with Professor Roger Guilard (Université de Bourgogne, Dijon) dealt with elucidating the role of each parameter to provide the best design of artificial special pairs capable of responding or behaving like the natural special pairs, namely with regards with the antenna effect. The latest feature is one of the defence mechanisms slowing down the rate for the primary electron transfer from the special pair to the electron transport accessories. This review highlights the advances in this challenging area of mimicry of the photophysical events in biological systems, namely the artificial special pairs designed in our laboratory for the antenna processes.
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Affiliation(s)
- Pierre D. Harvey
- Département de Chimie, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1
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