Ultrafast Photodynamics and Quantitative Evaluation of Biohybrid Photosynthetic Antenna and Reaction Center Complexes Generating Photocurrent

2020 ◽  
Vol 124 (16) ◽  
pp. 8605-8615 ◽  
Author(s):  
Yusuke Yoneda ◽  
Akari Goto ◽  
Nobutaka Takeda ◽  
Hiromi Harada ◽  
Masaharu Kondo ◽  
...  
Keyword(s):  
Reaction Center ◽  
Quantitative Evaluation ◽  
Reaction Center Complexes ◽  
Photosynthetic Antenna

ADMR of carotenoid triplet states in bacterial photosynthetic antenna and reaction center complexes

1991 ◽  
Vol 181 (2-3) ◽  
pp. 213-221 ◽  
Author(s):  
V. Aust ◽  
A. Angerhofer ◽  
J. Ullrich ◽  
J.U. von Schütz ◽  
H.C. Wolf ◽  
...  
Keyword(s):  
Reaction Center ◽  
Triplet States ◽  
Reaction Center Complexes ◽  
Photosynthetic Antenna

Mimicking Photosynthetic Antenna-Reaction-Center Complexes with a (Boron Dipyrromethene)3-Porphyrin-C60 Pentad

2011 ◽  
Vol 17 (5) ◽  
pp. 1605-1613 ◽  
Author(s):  
Jian-Yong Liu ◽  
Mohamed E. El-Khouly ◽  
Shunichi Fukuzumi ◽  
Dennis K. P. Ng
Keyword(s):  
Reaction Center ◽  
Boron Dipyrromethene ◽  
Reaction Center Complexes ◽  
Photosynthetic Antenna

Artificial photosynthetic antenna-reaction center complexes based on a hexaphenylbenzene core

2005 ◽  
Vol 09 (10) ◽  
pp. 706-723 ◽  
Author(s):  
Yuichi Terazono ◽  
Paul A. Liddell ◽  
Vikas Garg ◽  
Gerdenis Kodis ◽  
Alicia Brune ◽  
...  
Keyword(s):  
Reaction Center ◽  
Alder Reaction ◽  
Diels Alder ◽  
Nmr Studies ◽  
Substitution Pattern ◽  
Diels Alder Reaction ◽  
Energy And Electron Transfer ◽  
Reaction Center Complexes ◽  
Artificial Photosynthetic ◽  
Photosynthetic Antenna

A hexaphenylbenzene scaffold has been used to organize the components of artificial photosynthetic antennas and antenna-reaction center mimics that feature bis(phenylethynyl)anthracene antenna moieties and porphyrin-fullerene charge-separation units. The five bis(phenylethynyl)anthracene chromophores absorb in the spectral region around 430-480 nm, where porphyrins have low extinction coefficients but solar irradiance is maximal. The hexaphenylbenzene core was built up by the well-known Diels-Alder reaction of diarylacetylenes with substituted tetraphenylcyclopentadienones. The latter were in turn prepared by condensation of substituted benzils and dibenzyl ketones, allowing flexibility in the design of the substitution pattern on the core. The spacing between the various chromophores is suitable for rapid singlet-singlet energy transfer among antenna moieties and the porphyrin, and the relatively rigid structure of the hexaphenylbenzene limits conformational heterogeneity that could reduce the efficiency of energy and electron transfer. NMR studies reveal a high barrier to rotation of the porphyirn plane relative to the hexaphenylbenzene.

Multi-modular, tris(triphenylamine) zinc porphyrin–zinc phthalocyanine–fullerene conjugate as a broadband capturing, charge stabilizing, photosynthetic ‘antenna-reaction center’ mimic

Nanoscale ◽  
2015 ◽  
Vol 7 (15) ◽  
pp. 6813-6826 ◽  
Author(s):  
Chandra B. KC ◽  
Gary N. Lim ◽  
Francis D'Souza
Keyword(s):  
Electron Transfer ◽  
Reaction Center ◽  
Zinc Phthalocyanine ◽  
Zinc Porphyrin ◽  
Donor Acceptor ◽  
Photosynthetic Antenna ◽  
Charge Stabilization

Charge stabilization as a result of electron transfer followed by a hole-shift mechanism is demonstrated in a supramolecular multi-modular donor–acceptor assembly.

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