Photoinduced electron transfer in tris(2,2′-bipyridine)ruthenium(ii)-viologen dyads with peptide backbones leading to long-lived charge separation and hydrogen evolution

2010 ◽  
Vol 39 (18) ◽  
pp. 4421 ◽  
Author(s):  
Makoto Ogawa ◽  
Bijitha Balan ◽  
Gopalakrishnan Ajayakumar ◽  
Shigeyuki Masaoka ◽  
Heinz-Bernhard Kraatz ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Hydrogen Evolution ◽  
Charge Separation ◽  
Photoinduced Electron Transfer

scholarly journals Hypsochromic solvent shift of the charge separation band in ionic donor–acceptor Li+@C60⊂[10]CPP

2019 ◽  
Vol 55 (75) ◽  
pp. 11195-11198 ◽  
Author(s):  
Anton J. Stasyuk ◽  
Olga A. Stasyuk ◽  
Miquel Solà ◽  
Alexander A. Voityuk
Keyword(s):  
Electron Transfer ◽  
Charge Separation ◽  
Photoinduced Electron Transfer ◽  
Blue Shift ◽  
Polar Medium ◽  
Solvent Shift ◽  
Donor Acceptor

Photoinduced electron transfer in CPP-based donor–acceptor complexes C60⊂[10]CPP and Li+@C60⊂[10]CPP was studied using DFT/TDDFT. Unusual blue shift of charge separated states for Li+@C60⊂[10]CPP complexes in the polar medium is predicted.

Photoinduced electron transfer in 5-bromouracil labeled DNA. A contrathermodynamic mechanism revisited by electron transfer theories

2019 ◽  
Vol 21 (8) ◽  
pp. 4387-4393 ◽  
Author(s):  
Lorenzo Cupellini ◽  
Paweł Wityk ◽  
Benedetta Mennucci ◽  
Janusz Rak
Keyword(s):  
Electron Transfer ◽  
Charge Separation ◽  
Photoinduced Electron Transfer ◽  
Charge Recombination ◽  
Photoinduced Charge Separation ◽  
Photoinduced Charge

Neither the rates of photoinduced charge separation nor charge recombination account for the substantial damage observed in the 5′-ABrU sequence.

scholarly journals Direct estimation of the transfer integral for photoinduced electron transfer from TD DFT calculations

2017 ◽  
Vol 19 (46) ◽  
pp. 31007-31010 ◽  
Author(s):  
Lluís Blancafort ◽  
Alexander A. Voityuk
Keyword(s):  
Electron Transfer ◽  
Dft Calculations ◽  
Charge Separation ◽  
Photoinduced Electron Transfer ◽  
Simple Approach ◽  
Electronic Coupling ◽  
Td Dft ◽  
Photoinduced Charge Separation ◽  
Transfer Integral ◽  
Photoinduced Charge

A simple approach to estimate the electronic coupling for photoinduced charge separation in materials and biomolecules is proposed.

Tris-bipyridine based dinuclear ruthenium(ii)–osmium(iii) complex dyads grafted onto TiO2 nanoparticles for mimicking the artificial photosynthetic Z-scheme

2017 ◽  
Vol 19 (6) ◽  
pp. 4778-4786 ◽  
Author(s):  
Ludovic Favereau ◽  
Abhinandan Makhal ◽  
David Provost ◽  
Yann Pellegrin ◽  
Errol Blart ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Tio2 Nanoparticles ◽  
Charge Separation ◽  
Photoinduced Electron Transfer ◽  
Reaction Pathway ◽  
System P ◽  
Dinuclear Ruthenium ◽  
Artificial Photosynthetic ◽  
A Minor ◽  
Minor Reaction

A Ru(ii)–Os(iii) dyad was grafted on TiO2 to achieve Z-scheme charge separation, but photoinduced electron transfer was shown to be a minor reaction pathway in this system.

Flavin Core as Electron Acceptor Component in a Zinc(II)-Phthalocyanine-Based Dyad

2008 ◽  
Vol 61 (4) ◽  
pp. 256 ◽  
Author(s):  
Andreas Gouloumis ◽  
G. M. Aminur Rahman ◽  
Julia Abel ◽  
Gema de la Torre ◽  
Purificación Vázquez ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Ground State ◽  
Charge Separation ◽  
Photoinduced Electron Transfer ◽  
Significant Interaction ◽  
Transient Absorption ◽  
Cross Coupling ◽  
Ion Pair ◽  
Donor Acceptor ◽  
Recombination Dynamics

A zinc(ii)-phthalocyanine-flavin dyad has been synthesized by Heck-type cross-coupling between a flavin that bears a p-iodophenyl group and a phthalocyanine functionalized with a vinyl moiety. Electrochemical experiments reveal that no significant interaction occurs at the ground state between the two electroactive subunits. However, the occurrence of a photoinduced electron transfer in this donor–acceptor conjugate is observed in transient absorption experiments. Charge-separation (i.e., 4.0 × 1011 s–1) and charge-recombination dynamics in benzonitrile (2.2 × 1010 s–1) reveal a remarkable stabilization of the radical ion pair in this solvent.

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