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首页> 外文期刊>Inorganic Chemistry Communications >Preparation, photophysical, and electrochemical properties of three novel trinuclear Ru(II) polypyridyl complexes based on diazafluorenes
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Preparation, photophysical, and electrochemical properties of three novel trinuclear Ru(II) polypyridyl complexes based on diazafluorenes

机译:三种基于二氮杂芴的新型三核Ru(II)多吡啶基配合物的制备,光物理和电化学性质

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摘要

Three tripodal ligands 2,2',2"-tris[(4,5-diazafluoren-9-ylimino)phenoxyethyl]amine (L~1), 1,3.5-rris[(4,5-diazafluoren-9-ylimino)phenoxymethyl]-2,4,6-trimethylbenzene (L~2), 1,1',1"-tris[(4,5-diazafluoren-9-ylimino)phenoxymethyl]-1"-(p-tosyloxymethyl)-methane (L~3), and corresponding Ru(II) complexes [(bpy)6L~(1-3)(Ru~(II))3](PF6)6 (Ru-L~(1-3)) have been prepared. Cyclic voltammetry of the three complexes are consistent with one Ru(II)-centered quasi-reversible oxidation and three ligand-centered reductions. Photophysical behaviors are investigated by UV-Vis absorption and fluorescence spectrometry. The three complexes display metal-to-ligand charge transfer absorption at 445 nm and emission at 578 nm.
机译:三个三脚架配体2,2',2“-三[(4,5-二氮杂芴-9-ylimino)苯氧基乙基]胺(L〜1),1,3.5-rris [(4,5-二氮杂芴-9-ylimino)苯氧基甲基] -2,4,6-三甲苯(L〜2),1,1',1“-三[[4,5-二氮杂芴-9-ylimino)苯氧基甲基] -1”-(对甲苯磺酰氧基甲基)-甲烷(L〜3)和相应的Ru(II)络合物[(bpy)6L〜(1-3)(Ru〜(II))3](PF6)6(Ru-L〜(1-3))三种络合物的循环伏安法均以一个Ru(II)为中心的准可逆氧化和三个配体为中心的还原相一致,通过紫外-可见吸收和荧光光谱研究了光物理行为,这三个络合物显示出金属对配体电荷在445 nm处转移吸收,在578 nm处发射。

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