Exploring the Noninnocent Character of Electron Rich π-Extended 8-Oxyquinolate Ligands in Ruthenium(II) Bipyridyl Complexes
作者:Stephanie Bellinger-Buckley、Tse-Cing Chang、Seema Bag、David Schweinfurth、Weihong Zhou、Bela Torok、Biprajit Sarkar、Ming-Kang Tsai、Jonathan Rochford
DOI:10.1021/ic5002623
日期:2014.6.2
characterization is presented for the complexes [Ru(bpy)2(R-OQN)](PF6), where bpy = 2,2′-bipyridine and R = 5-phenyl, 5,7-diphenyl, 2,4-diphenyl, 5,7-bis(4-methoxyphenyl), 5,7-bis(4-(diphenylamino)phenyl). A comprehensive bonding analysis is presented for the [Ru(bpy)2(OQN)]+ system illustrating the origin of its unique spectroscopic and redox properties relative to [Ru(bpy)3]2+. This model is then extended
提出了一系列的钌多吡啶基配合物,其掺入了8-氧喹诺酮(OQN)配体的π-延伸的富电子衍生物。与传统的钌(II)三联吡啶基络合物[Ru(bpy) )3 ] 2+。给出了配合物[Ru(bpy)2(R-OQN)](PF 6)的合成和表征,其中bpy = 2,2'-联吡啶,R = 5-苯基,5,7-二苯基,2,4 -二苯基,5,7-双(4-甲氧基苯基),5,7-双(4-(二苯基氨基)苯基)。对[Ru(bpy)2(OQN)] +进行了全面的键合分析该系统说明了其相对于[Ru(bpy)3 ] 2+的独特光谱和氧化还原特性的起源。然后扩展该模型,以便对π扩展的[Ru(bpy)2(R-OQN)](PF 6)的光谱和氧化还原特性进行一致的解释。) 系列。电子结构已通过电化学和光谱技术(UV-vis-NIR吸收,发射,EPR光谱)的组合进行了实验性探测,其中(金属-配体)到配体(MLLCT)的电荷转移特性通过