Synthesis, photophysical, photochemical and electrochemical properties of rhenium(I) diimine complexes with photoisomerizable pyridyl-azo, -ethenyl or -ethyl ligands
作者:Vivian Wing-Wah Yam、Victor Chor-Yue Lau、Li-Xin Wu
DOI:10.1039/a801575i
日期:——
A series of rhenium(I) diimine complexes with pyridyl-azo, -ethenyl or -ethyl type ligands, [Re(CO)3(N–N)L]ClO4 and [Re(CO)3(N–N)}2L′][ClO4]2 N–N = 2,2′-bipyridine (bpy), 1,10-phenanthroline (phen); L = 4-phenylazopyridine (PHAZO), 4-styrylpyridine (STYPY), [2-(4-pyridyl)ethyl]benzene (PEB), 4-(4-nitrostyryl)pyridine (NSP); L′ = 4,4′-azopyridine (AZO), 1,4-bis[2-(4-pyridyl)ethenyl]benzene (BPENB), 1,4-bis[2-(4-pyridyl)ethyl]benzene (BPEB)} have been synthesized and their photophysical properties studied. The quantum yields for the photoinduced isomerization of the complexes [Re(CO)3(bpy)(NSP)]+ and [Re(CO)3(phen)(NSP)]+ have been determined.
一系列铼(I)二亚胺配合物,具有吡啶基-偶氮、-乙烯基或-乙基类型的配体,[Re(CO)3(N–N)L]ClO4 和 [Re(CO)3(N–N)}2L′][ClO4]2 N–N = 2,2′-联吡啶 (bpy)、1,10-菲咯啉 (phen); L = 4-苯基偶氮吡啶 (PHAZO)、4-苯乙烯基吡啶 (STYPY)、[2-(4-吡啶基)乙基]苯 (PEB)、4-(4-硝基苯乙烯)吡啶 (NSP); L′ = 4,4′-偶氮吡啶 (AZO)、1,4-双[2-(4-吡啶基)乙烯基]苯 (BPENB)、1,4-双[2-(4-吡啶基)乙基]苯 (BPEB)} 已被合成,并研究了它们的光物理性质。已确定配合物 [Re(CO)3(bpy)(NSP)]+ 和 [Re(CO)3(phen)(NSP)]+ 的光诱导异构化的量子产率。