Spring Open Two-plus-Two Electron Storage in a Disulfide-Strapped Methyl Viologen Derivative
作者:Andrew C. Benniston、Jerry Hagon、Xiaoyan He、Songjie Yang、Ross W. Harrington
DOI:10.1021/ol203099h
日期:2012.1.20
The synthesis of a disulfide-strapped viologen derivative is described starting from 4,4′-bipyridinyl-3,3′-diol. The first two one-electron reduction potentials, as determined by cyclic voltammetry, occur at E1/2 = −0.03 V and E1/2 = −0.16 V vs Ag/AgCl. This is accompanied by two more well separated one-electron reductions at E1/2 = −1.26 V and E1/2 = −1.54 V vs Ag/AgCl and the breaking of the disulfide
描述了从4,4'-联吡啶基-3,3'-二醇开始的二硫键合的紫精衍生物的合成。通过循环伏安法测定的前两个单电子还原电势相对于Ag / AgCl出现在E 1/2 = -0.03 V和E 1/2 = -0.16V。这伴随着相对于Ag / AgCl在E 1/2 = -1.26 V和E 1/2 = -1.54 V时两个分离得更好的单电子还原以及二硫键的断裂。为了减轻两个硫醇盐离子之间的静电排斥,分子系统必须扭转或“弹开”以容纳最后的两个电子。