Photophysical properties of quinones and their interaction with the photosynthetic reaction centre

2008 ◽  
Vol 7 (8) ◽  
pp. 973 ◽  
Author(s):  
Arianna Barbafina ◽  
Fausto Elisei ◽  
Loredana Latterini ◽  
Francesco Milano ◽  
Angela Agostiano ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Reaction Centre ◽  
Photosynthetic Reaction Centre

Surface anchored self-assembled reaction centre mimics as photoanodes consisting of a secondary electron donor, aluminium(iii) porphyrin and TiO2 semiconductor

2019 ◽  
Vol 21 (35) ◽  
pp. 19612-19622 ◽  
Author(s):  
Niloofar Zarrabi ◽  
Gary N. Lim ◽  
Brandon J. Bayard ◽  
Francis D'Souza ◽  
Prashanth K. Poddutoori
Keyword(s):  
Electron Donor ◽  
Secondary Electron ◽  
Photophysical Properties ◽  
Reaction Centre ◽  
Self Assembled

Vertically assembled photoanodes, consisting of aluminum(iii) porphyrin, an electron donor, and semiconductor TiO2, have been fabricated and their photophysical properties investigated.

Intramolecular photoinduced processes of newly synthesized dual zinc porphyrin-fullerene triad with flexible linkers

2006 ◽  
Vol 10 (12) ◽  
pp. 1380-1391 ◽  
Author(s):  
Mohamed E. El-Khouly ◽  
Jun Hasegawa ◽  
Atsuya Momotake ◽  
Mikio Sasaki ◽  
Yasuyuki Araki ◽  
...  
Keyword(s):  
Transient Absorption ◽  
Photophysical Properties ◽  
Ion Pair ◽  
Reaction Centre ◽  
Polar Solvents ◽  
Time Resolved ◽  
Zinc Porphyrin ◽  
Photosynthetic Antenna ◽  
Porphyrin Moiety ◽  
Photoinduced Processes

Zinc porphyrin-fullerene-zinc porphyrin triad, in which two zinc porphyrin ( ZnP ) moieties and a fullerene ( C 60) moiety are linked by flexible bonds and which is intended to be a working model of the photosynthetic antenna-reaction centre, has been newly synthesized. Its photophysical properties have been investigated by both time-resolved emission and transient absorption techniques. Excitation of the zinc porphyrin moiety of the triad induced charge separation, generating the radical ion pair, in which the electron localizes on the C 60 moiety and the hole localizes on the zinc porphyrin moiety. In polar solvents, the charge-separated states decayed with lifetimes of 300-600 ns returning to the ground state. Compared with ZnP - C 60 dyad, ZnP - C 60- ZnP triad showed longer lifetimes for the radical ion pair due to the conformation of the two ZnP moieties. The effects of the coordinating reagents on the zinc atom have been studied, with the expectation of conformational change of the two ZnP moieties with respect to C 60.

First moves towards photoautotrophic synthetic cells: In vitro study of photosynthetic reaction centre and cytochrome bc 1 complex interactions

2017 ◽  
Vol 229 ◽  
pp. 46-56 ◽  
Author(s):  
Emiliano Altamura ◽  
Rosa Fiorentino ◽  
Francesco Milano ◽  
Massimo Trotta ◽  
Gerardo Palazzo ◽  
...  
Keyword(s):  
In Vitro Study ◽  
Vitro Study ◽  
Reaction Centre ◽  
Cytochrome Bc ◽  
Complex Interactions ◽  
Synthetic Cells ◽  
Photosynthetic Reaction Centre
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