Structure and Properties of Carbonyl-Coordinated Ruthenium(II) and Osmium(II) Porphyrin Dimers Bridged by Aza Ligands
作者:Chika Bando、Atsushi Furukawa、Kiyoshi Tsuge、Kazumi Takaishi、Yoichi Sasaki、Taira Imamura
DOI:10.1246/bcsj.80.1955
日期:2007.10.15
Carbonyl-coordinated ruthenium(II) and osmium(II) porphyrin dimers bridged with aza ligands, [(M(por)-(CO)} 2 ](BL), (M = Ru II , Os II ; por = ttp (5,10,15,20-tetra-p-tolylporphyrinato dianion), oep (2,3,7,8,12,13,17,18-octa-ethylporphyrinato dianion); BL = pz (pyrazine), bpy (4,4'-bipyridine), dabco (1,4-diazabicyclo[2,2,2]octane)), were prepared and characterized, and their structures were determined
尽管 Ru 络合物中的第一次氧化发生在
卟啉环上,而 Os 络合物中的第一次氧化发生在
金属中心。第一次氧化过程中电位分裂的程度反映了分子内氧化还原相互作用的大小,其顺序为:ttp > oep 和 Os(
金属氧化)> Ru(环氧化),并且 dabco≥ pz≥ bpy。