Is There a Deuterium Kinetic Isotope Effect in the One-Electron Transfer from 1-Benzyl-1,4-dihydronicotinamide to 9-Fluorenylidenemalononitrile?

2000 ◽  
Vol 65 (21) ◽  
pp. 7213-7214 ◽  
Author(s):  
Agnès Anne ◽  
Jacques Moiroux ◽  
Jean-Michel Savéant
Keyword(s):  
Electron Transfer ◽  
Isotope Effect ◽  
Kinetic Isotope Effect ◽  
Kinetic Isotope ◽  
The One

scholarly journals Kinetic isotope effect of proton-coupled electron transfer in a hydrogen bonded phenol–pyrrolidino[60]fullerene

2015 ◽  
Vol 14 (12) ◽  
pp. 2147-2150 ◽  
Author(s):  
Janneke Ravensbergen ◽  
Chelsea L. Brown ◽  
Gary F. Moore ◽  
Raoul N. Frese ◽  
Rienk van Grondelle ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Isotope Effect ◽  
Kinetic Isotope Effect ◽  
Proton Coupled Electron Transfer ◽  
Kinetic Isotope ◽  
Hydrogen Bonded

Proton-coupled electron transfer (PCET) plays a central role in photosynthesis and potentially in solar-to-fuel systems.

Effect of changing pH upon the kinetic 13C-isotope effect in the decarboxylation of 4-methoxyanthranilic acid

1968 ◽  
Vol 46 (4) ◽  
pp. 563-566 ◽  
Author(s):  
G. E. Dunn ◽  
John Buccini
Keyword(s):  
Ionic Strength ◽  
Aqueous Solutions ◽  
Isotope Effect ◽  
Aromatic Ring ◽  
Kinetic Isotope Effect ◽  
13C Isotope ◽  
Kinetic Isotope ◽  
The One

The 13C-carboxyl kinetic isotope effect on decarboxylation of 4-methoxyanthranilic acid has been determined in aqueous solutions of ionic strength 0.50 at 60 °C. The isotope effect, 100(k12/k13 −1), is found to be 4.2% at pH −0.3, 1.4% at pH 1.3, and zero at pH 4.0. This information makes it possible to decide between two mechanisms previously proposed in favor of the one in which both anion and neutral acid are protonated at carbon-1 of the aromatic ring but only the protonated anion decarboxylates.

Hydride transfer from NADH analogues to a nonheme manganese(iv)–oxo complex via rate-determining electron transfer

2014 ◽  
Vol 50 (85) ◽  
pp. 12944-12946 ◽  
Author(s):  
Heejung Yoon ◽  
Yong-Min Lee ◽  
Wonwoo Nam ◽  
Shunichi Fukuzumi
Keyword(s):  
Electron Transfer ◽  
Charge Transfer ◽  
Isotope Effect ◽  
Kinetic Isotope Effect ◽  
Hydride Transfer ◽  
Charge Transfer Complexes ◽  
Kinetic Isotope ◽  
Transfer Step

Hydride transfer from NADH analogues to a nonheme Mn(iv)–oxo complex, [(Bn-TPEN)MnIV(O)]2+, proceeds via a rate-determining electron transfer step with no deuterium kinetic isotope effect (KIE = 1.0 ± 0.1) and via charge-transfer complexes formed in the reactions of Mn(iv)–oxo and NADH analogues.

A Remarkable Kinetic Isotope Effect in One-Electron Transfer from 1-Benzyl-1,4-dihydronicotinamide

1999 ◽  
Vol 64 (25) ◽  
pp. 8982-8983 ◽  
Author(s):  
Xiao-Qing Zhu ◽  
You-Cheng Liu ◽  
Hong-Yi Wang ◽  
Wei Wang
Keyword(s):  
Electron Transfer ◽  
Isotope Effect ◽  
Kinetic Isotope Effect ◽  
Kinetic Isotope
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