Dual electron transfer pathways from the excited C60 radical anion: enhanced reactivities due to the photoexcitation of reaction intermediates

2015 ◽  
Vol 17 (46) ◽  
pp. 31030-31038 ◽  
Author(s):  
Mamoru Fujitsuka ◽  
Tatsuya Ohsaka ◽  
Tetsuro Majima
Keyword(s):  
Electron Transfer ◽  
Radical Anion ◽  
Reaction Intermediates ◽  
Electron Transfer Pathways

The excited C60 radical anion showed enhanced electron transfer.

scholarly journals Enantioselective Protonation of Radical Anion Intermediates in Photoallylation and Photoreduction Reactions of 3,3-Diaryl-1,1-dicyano-2-methylprop-1-ene with Allyltrimethylsilane

Molecules ◽  
2019 ◽  
Vol 24 (14) ◽  
pp. 2677
Author(s):  
Hajime Maeda ◽  
Masayuki Iida ◽  
Daisuke Ogawa ◽  
Kazuhiko Mizuno
Keyword(s):  
Electron Transfer ◽  
Acetic Acid ◽  
Proton Transfer ◽  
Carboxylic Acids ◽  
Photoinduced Electron Transfer ◽  
Radical Anion ◽  
Mandelic Acid ◽  
Proton Source ◽  
Acetonitrile Solutions ◽  
Electron Transfer Pathways

Photoreactions of acetonitrile solutions of 3,3-diaryl-1,1-dicyano-2-methylprop-1-enes (1a–c) with allyltrimethylsilane (2) in the presence of phenanthrene as a photoredox catalyst and acetic acid as a proton source formed photoallylation (3) and photoreduction (4) products via photoinduced electron transfer pathways. When (S)-mandelic acid was used as the proton source, the reactions proceeded with 3.4 and 4.8 %ee for formation of 3 and 4, respectively. The results of studies of the effect of aryl ring substituents and several chiral carboxylic acids suggested that the enantioselectivities of the reactions are governed by steric controlled proton transfer in intermediate complexes formed by π-π and OH-π interactions of anion radicals derived from 1a–c and chiral carboxylic acids.

scholarly journals Electron transfer pathways in photoexcited lanthanide(III) complexes of picolinate ligands

2021 ◽  
Author(s):  
Daniel Kovacs ◽  
Daniel Kocsi ◽  
Jordann A. L. Wells ◽  
Salauat R. Kiraev ◽  
Eszter Borbas
Keyword(s):  
Electron Transfer ◽  
Metal Binding ◽  
Binding Sites ◽  
Secondary Amide ◽  
Metal Binding Sites ◽  
Electron Transfer Pathways

A series of luminescent lanthanide(III) complexes consisting of 1,4,7-triazacyclononane frameworks and three secondary amide-linked carbostyril antennae were synthesised. The metal binding sites were augmented with two pyridylcarboxylate donors yielding octadentate...

Control of Electron Transfer Pathways in a Dye-Sensitized Solar Cell

2006 ◽  
Vol 97 (20) ◽  
Author(s):  
Ben Brüggemann ◽  
Juan Angel Organero ◽  
Torbjörn Pascher ◽  
Tõnu Pullerits ◽  
Arkady Yartsev
Keyword(s):  
Electron Transfer ◽  
Solar Cell ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Electron Transfer Pathways

One and two electron transfer pathways in the photoreduction of flavin

1982 ◽  
Vol 54 (9) ◽  
pp. 1651-1665 ◽  
Author(s):  
R. Traber ◽  
H. E. A. Kramer ◽  
Peter Hemmerich
Keyword(s):  
Electron Transfer ◽  
Electron Transfer Pathways

Concerted double proton-transfer electron-transfer between catechol and superoxide radical anion

2017 ◽  
Vol 19 (38) ◽  
pp. 26179-26190 ◽  
Author(s):  
Jorge Quintero-Saumeth ◽  
David A. Rincón ◽  
Markus Doerr ◽  
Martha C. Daza
Keyword(s):  
Electron Transfer ◽  
Proton Transfer ◽  
Superoxide Anion ◽  
Radical Anion ◽  
Reaction Rate ◽  
Superoxide Radical ◽  
Superoxide Radical Anion ◽  
Double Proton Transfer

Catechol reacts with a superoxide anion via concerted double proton-transfer electron-transfer with a reaction rate that is dominated by tunneling.

scholarly journals Cellular Metabolites Enhance the Light Sensitivity ofArabidopsisCryptochrome through Alternate Electron Transfer Pathways

2014 ◽  
Vol 26 (11) ◽  
pp. 4519-4531 ◽  
Author(s):  
Christopher Engelhard ◽  
Xuecong Wang ◽  
David Robles ◽  
Julia Moldt ◽  
Lars-Oliver Essen ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Light Sensitivity ◽  
Electron Transfer Pathways
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