The Class II/III Transition Electron Transfer on an Infrared Vibrational Time Scale for <i>N,N</i><i>‘</i>-Diphenyl-1,4-phenylenediamine Structures
作者:Toyohiko Nishiumi、Yasuhiro Nomura、Yuya Chimoto、Masayoshi Higuchi、Kimihisa Yamamoto
DOI:10.1021/jp0492265
日期:2004.6.1
Intramolecular electron transfer (ET) within the class II/III transition for the mixed-valence state of N,N‘-diphenyl-1,4-phenylenediamine (PDA) derivatives which were substituted in the center or the outer phenyl ring and N,N‘-diphenylbenzidine (BZ) was examined. Each compound showed two reversible redox couples. The splitting of the redox waves, ΔE, is related to the interaction intensity between
N,N'-二苯基-1,4-苯二胺 (PDA) 衍生物的混合价态的 II/III 类跃迁内的分子内电子转移 (ET),这些衍生物在中心或外苯环和 N 中被取代,检查了N'-二苯基联苯胺(BZ)。每种化合物显示出两个可逆的氧化还原对。氧化还原波的分裂ΔE与氧化还原位点之间的相互作用强度有关。将取代基引入 PDA 的中心亚苯基环导致 ΔE 降低。对于氧化还原中心之间的距离的扩大,例如在 BZ 中,注意到了类似的结果。相反,N,N'-双(2,6-二甲基苯基)-1,4-苯二胺(2,6-DMPDA)作为在外苯环中引入了取代基的化合物的ΔE被扩展。