RuII complexes. These were characterized by UV/Vis spectroscopy and cyclic voltammetry, and by their ability to undergo light-induced electron transfers to methylviologen. The dpp-bearing complexes were more difficult to prepare but were superior sensitizers, a fact attributable to longer excited state lifetimes and an electrostatically favored reductive quenching pathway. (© Wiley-VCH Verlag GmbH & Co
四个双位桥接
配体,包含 2,2':6',2''-三联
吡啶和 2,6-二
吡嗪基
吡啶 (dpp)
金属结合单元,通过对或间亚苯基键连接,已被整合到八个单-,双核和三核线性 RuII 复合物。它们的特征在于紫外/可见光谱和循环伏安法,以及它们进行光诱导电子转移到
甲基紫精的能力。含 dpp 的配合物更难制备,但它是优良的敏化剂,这归因于更长的激发态寿命和静电有利的还原猝灭途径。(© Wiley-
VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)