Stabilities of some 2-(para-substituted-phenyl)-4,4,5,5-tetramethyl-1,3-dioxolanes relative to their conjugate dioxolenium ions, radicals and carbanions as determined by thermodynamics for hydride and electron transfer in solution
作者:Edward M. Arnett、Robert A. Flowers、Alison E. Meekhof、Ali Pourjavadi、Stuart A. Walek
DOI:10.1002/poc.610071204
日期:1994.12
determination of the hydride affinities, ΔH(R+) of seven dioxolenium ions from the title compounds and also tropylium, trityl and 9-phenyl xanthylium cations by hydride transfer to the carbocations from BH3CN−. Cyclic voltammetric methods yield free energies for reduction of the cations to the conjugate radicals and to the carbanions. The ΔH(R+) values correlate well with the first reduction potentials
量热法用于确定的氢化物的亲和力的,Δ描述ħ(R +通过氢化物转移从标题化合物7根dioxolenium离子和还鎓,三苯甲基和9-苯基xanthylium阳离子)从BH碳阳离子3 CN - 。循环伏安法可产生自由能,以将阳离子还原为共轭自由基和碳负离子。该Δ ħ(R +)值与所述阳离子的第一还原电位相关。