Evidence for a hydrogen atom transfer mechanism or a fast proton/electron transfer mechanism for monoamine oxidase

1992 ◽  
Vol 57 (23) ◽  
pp. 6373-6374 ◽  
Author(s):  
Richard B. Silverman ◽  
Yury Zelechonok
Keyword(s):  
Electron Transfer ◽  
Hydrogen Atom ◽  
Monoamine Oxidase ◽  
Hydrogen Atom Transfer ◽  
Transfer Mechanism ◽  
Atom Transfer ◽  
Fast Proton ◽  
Electron Transfer Mechanism

Atmospheric formation of the NO3 radical from gas-phase reaction of HNO3 acid with the NH2 radical: proton-coupled electron-transfer versus hydrogen atom transfer mechanisms

2014 ◽  
Vol 16 (36) ◽  
pp. 19437-19445 ◽  
Author(s):  
Josep M. Anglada ◽  
Santiago Olivella ◽  
Albert Solé
Keyword(s):  
Electron Transfer ◽  
Hydrogen Atom ◽  
Hydrogen Atom Transfer ◽  
Atom Transfer ◽  
Phase Reaction ◽  
Electron Transfer Mechanism ◽  
Proton Coupled Electron Transfer ◽  
No3 Radical ◽  
Transfer Mechanisms ◽  
Atmospheric Formation

The amidogen radical abstracts the hydrogen from nitric acid through a proton coupled electron transfer mechanism rather than by an hydrogen atom transfer process.

scholarly journals ANTIRADIKALSKI KAPACITET (E)-N’-1-(2,4-DIOKSO-2H-HROMEN-3(4H)-ILIDENE)ETIL)-4-HIDROKSI-3-METOKSIBENZOHIDRAZIDA

2021 ◽  
Author(s):  
Marko Antonijevic ◽  
◽  
Dejan Milenkovic ◽  
Ana Kesic ◽  
Edina Avdovic ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Hydrogen Atom ◽  
Hydrogen Atom Transfer ◽  
Transfer Mechanism ◽  
The Other ◽  
Physiological Effects ◽  
Single Electron Transfer ◽  
Test Compound ◽  
Electron Transfer Mechanism ◽  
Wide Range

Coumarins are a widespread group of compounds. They have a wide range of physiological effects, from antifungal, through anticoagulant to anticancer, and therefore they have found wide application in the treatment of various diseases. In this paper, the ability of 4-hydroxy-3-methoxy-N'-((E)-1-(2,4-dioxo-2H-chromen-3(4H)-ylidene)ethyl)benzohydrazide to inactivate ROS was investigated. The analysis of the obtained results showed that the SET-PT (Single Electron Transfer Followed By Proton Transfer) mechanism is non-operative. On the other hand, the thermodynamic parameters describing the HAT *Hydrogen Atom Transfer) and the first step of the SPLET (Sequential Proton Loss-Electron Transfer) mechanism indicate that both mechanisms will be operative. The antiradical capacity of the test compound with the radicals decreases in the following order: •OH> •OCH3> •OC(CH3)3> •OOH> •OOCH3> •OOCH2CH3.

Ion-molecule reactions in acetone-water mixtures

1966 ◽  
Vol 19 (1) ◽  
pp. 59 ◽  
Author(s):  
Souza BC de ◽  
JH Green
Keyword(s):  
Hydrogen Atom ◽  
Proton Transfer ◽  
Transfer Process ◽  
Hydrogen Atom Transfer ◽  
Mass Spectrometric ◽  
Transfer Mechanism ◽  
Atom Transfer ◽  
Ion Molecule Reactions ◽  
Acetone Water

Mass-spectrometric studies of ion-molecule reactions in acetone-water mixtures at 70 eV and 20 eV electron energies are described. The results provide evidence in favour of the proton transfer mechanism rather than for a hydrogen atom transfer process for the production of M + 1 ions.

Radical Catalyzed Debromination of Bromo-Alkanes by Formate in Aqueous Solutions via a Hydrogen Atom Transfer Mechanism.

ChemInform ◽  
2004 ◽  
Vol 35 (20) ◽  
Author(s):  
Elisabetha Shandalov ◽  
Israel Zilbermann ◽  
Eric Maimon ◽  
Yeoshua Nahmani ◽  
Haim Cohen ◽  
...  
Keyword(s):  
Hydrogen Atom ◽  
Aqueous Solutions ◽  
Hydrogen Atom Transfer ◽  
Transfer Mechanism ◽  
Atom Transfer

Microsolvation, hydrogen bond dynamics and excited state hydrogen atom transfer mechanism of 2′,4′-dihydroxychalcone

2020 ◽  
Vol 739 ◽  
pp. 137030
Author(s):  
Yelechakanahalli Lingaraju Ramu ◽  
Kandigowda Jagadeesha ◽  
Tavarekere Shivalingaswamy ◽  
Mariyappa Ramegowda
Keyword(s):  
Hydrogen Bond ◽  
Excited State ◽  
Hydrogen Atom ◽  
Hydrogen Atom Transfer ◽  
Transfer Mechanism ◽  
Atom Transfer ◽  
Hydrogen Bond Dynamics
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