作者:R. Argazzi、E. Bertolasi、C. Chiorboli、C. A. Bignozzi、M. K. Itokazu、N. Y. Murakami Iha
DOI:10.1021/ic010224y
日期:2001.12.1
studied. In the binuclear species an efficient Re(I)-Os(II) energy transfer is observed, which is analyzed in terms of Förster theory. In the binuclear [(phen)Re(CO)(3)(t-bpe)Os(trpy)(bpy)](3+) complex, the trans to cis isomerization of the coordinated t-bpe ligand, characteristic of the [(phen)Re(CO)(3)(t-bpe)](+) subunit, is inhibited by competitive intramolecular energy transfer.
一系列通式为[[phen)Re(CO)(3)LOs(trpy)(bpy)](3+)的双金属配合物(bpy = 2,2'-联吡啶,phen = 1,10-菲咯啉,trpy = 2,2':6',2''-吡啶,L = 4,4'-联吡啶(4,4'-bpy),反式1,2-双(4-吡啶基)乙烯(t-bpe )或1,2-双(4-吡啶基)乙烷(bpa))和模型单核物质[(phen)Re(CO)(3)L](+)和[Os(trpy)(bpy)L] (2+)已合成,并研究了它们的光物理和光化学性质。在双核物种中,观察到有效的Re(I)-Os(II)能量转移,并根据Förster理论对其进行了分析。在双核[(phen)Re(CO)(3)(t-bpe)Os(trpy)(bpy)](3+)络合物中,配位的t-bpe配体的反式至顺式异构化是[ (phen)Re(CO)(3)(t-bpe)](+)亚基受到竞争性分子内能量转移的抑制。