activation energies of various hydridetransferreactions was developed according to transition state theory using the Morse-type free energy curves of hydride donors to release a hydride anion and hydrideacceptors to capture a hydride anion and by which the activation energies of 187 typical hydride self-exchange reactions and more than thirty thousand hydride cross transferreactions in acetonitrile were
What Are the Differences between Ascorbic Acid and NADH as Hydride and Electron Sources in Vivo on Thermodynamics, Kinetics, and Mechanism?
作者:Xiao-Qing Zhu、Yuan-Yuan Mu、Xiu-Tao Li
DOI:10.1021/jp2067974
日期:2011.12.15
respectively, which indicates that iAscH– is a good electron donor and a good hydrogen atom donor, but GluNAH is a good hydride donor. The kinetic intrinsic barrier energy of iAscH– to release hydride anion in acetonitrile is larger than that of GluNAH to release hydride anion in acetonitrile by 6.9 kcal/mol. The mechanisms of hydride transfer from iAscH– and GluNAH to phenylxanthium perchlorate (PhXn+)
Arnett; Flowers II, Robert A.; Meekhof, Journal of the American Chemical Society, 1993, vol. 115, # 26, p. 12603 - 12604
作者:Arnett、Flowers II, Robert A.、Meekhof、Miller, Leanne
DOI:——
日期:——
Unusual Reaction Constant for Hydride Transfer from a Carbanion to 9-Arylxanthyliums
作者:Fengrui Liu、Xiaoqing Zhu
DOI:10.1002/ejoc.201403023
日期:2014.11
The reaction constant (ρ) from the kinetics for hydride transfer from a carbanion (XH–) to 9-arylxanthylium ions (9-GPhXn+) in CH3CN was unusually negative. Thermodynamic analysis indicated that ρ for the simple hydride transfers (only involved with release and capture of a hydride anion) should be positive; this is in contrast to the kinetics results. Consequently, this reaction is not a simple hydride