Charge separation in photoinitiated electron transfer reactions induced by a polyelectrolyte

1978 ◽  
Vol 82 (17) ◽  
pp. 1879-1885 ◽  
Author(s):  
D. Meyerstein ◽  
J. Rabani ◽  
M. S. Matheson ◽  
D. Meisel
Keyword(s):  
Electron Transfer ◽  
Charge Separation ◽  
Transfer Reactions ◽  
Electron Transfer Reactions

scholarly journals Correction: Long-lived charge separation in dye–semiconductor assemblies: a pathway to multi-electron transfer reactions

2019 ◽  
Vol 55 (8) ◽  
pp. 1176-1176
Author(s):  
Elin Sundin ◽  
Maria Abrahamsson
Keyword(s):  
Electron Transfer ◽  
Charge Separation ◽  
Transfer Reactions ◽  
Electron Transfer Reactions

Correction for ‘Long-lived charge separation in dye–semiconductor assemblies: a pathway to multi-electron transfer reactions’ by Elin Sundin et al., Chem. Commun., 2018, 54, 5289–5298.

Transient states in photoinduced electron transfer reactions of porphyrin- and phthalocyanine-fullerene dyads

2009 ◽  
Vol 13 (10) ◽  
pp. 1090-1097 ◽  
Author(s):  
Helge Lemmetyinen ◽  
Nikolai Tkachenko ◽  
Alexander Efimov ◽  
Marja Niemi
Keyword(s):  
Electron Transfer ◽  
Charge Separation ◽  
Photoinduced Electron Transfer ◽  
Transient State ◽  
Primary Electron ◽  
Transfer Reactions ◽  
Acceptor Pair ◽  
Electron Transfer Reactions ◽  
Exciplex Formation ◽  
Donor And Acceptor

This paper combines the most important results on studies performed by the authors during the last decade on photoinduced electron transfer reactions of pheophytin-, phthalocyanine-, and porphyrin-fullerene dyads, in which donor and acceptor moieties are covalently linked to each other. Practically all studied molecules form an intramolecular exciplex as a transient state before the formation of the charge separation state or tight ion pair. When the center-to-center distance of the donor and acceptor pair is short (7–10 Å) both the exciplex formation and primary electron transfer are extremely fast with rate constants of 7–23 × 1012 s -1 and 40–1400 × 109 s -1, respectively. Rates become slower when the distance and orientational fluctuation increases. No systematic correlation between free energies and the rates of the formation and recombination of the exciplex and the charge separation state, respectively, were observed. The mechanism is discussed in frames of the Marcus electron transfer and the radiationless quantum transition theories.

Intramolecular electron transfer reactions in meso-(4-nitrophenyl)-substituted subporphyrins

2016 ◽  
Vol 52 (7) ◽  
pp. 1424-1427 ◽  
Author(s):  
Graeme Copley ◽  
Juwon Oh ◽  
Kota Yoshida ◽  
Daiki Shimizu ◽  
Dongho Kim ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Absorption Spectroscopy ◽  
Charge Separation ◽  
Transient Absorption ◽  
Charge Recombination ◽  
Transient Absorption Spectroscopy ◽  
Transfer Reactions ◽  
Intramolecular Electron Transfer ◽  
Time Resolved ◽  
Electron Transfer Reactions

A2B-type meso-(4-nitrophenyl)-substituted subporphyrins have been synthesized and shown to undergo very fast photoinduced intramolecular charge separation (CS) and charge recombination (CR) between the subporphyrin core and the meso-4-nitrophenyl group in CH2Cl2 as probed by femtosecond time-resolved transient absorption spectroscopy.

scholarly journals Long-lived charge separation in dye–semiconductor assemblies: a pathway to multi-electron transfer reactions

2018 ◽  
Vol 54 (42) ◽  
pp. 5289-5298 ◽  
Author(s):  
Elin Sundin ◽  
Maria Abrahamsson
Keyword(s):  
Electron Transfer ◽  
Conduction Band ◽  
Charge Separation ◽  
Transfer Reactions ◽  
Electron Transfer Reactions ◽  
Dye Sensitized ◽  
Mediated Electron Transfer

Key approaches to achieve long-lived charge separation and promote conduction band mediated electron transfer in dye-sensitized semiconductor assemblies.

Sign in / Sign up

Export Citation Format

Share Document