PHOTOCHEMISTRY OF BRIDGED SYMMETRICAL POLYPYRIDYL RUTHENIUM(II) COMPLEXES

被引：21

作者：

VELETSKY, NI ^{[1
]}

DEMENTIEV, IA ^{[1
]}

ERSHOV, AY ^{[1
]}

NIKOLSKII, AB ^{[1
]}

机构：

[1] ST PETERSBURG STATE UNIV,INST PHYS,ST PETERSBURG 198904,RUSSIA

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1995年 / 89卷 / 02期

关键词：

POLYPYRIDYL RUTHENIUM(II) COMPLEXES; IRRADIATION; EXCITED STATES;

D O I：

10.1016/1010-6030(94)04021-S

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The photochemical behaviour of [RuL(2)(BL)X](+) (1) and [L(2)XRu(BL)RuXL(2)](2+) (2) (L = 2,2'-bipyridyl (bpy), 1,10-phenanthroline (phen); BL=4,4'-bipyridyl (4,4'-bpy), pyrazine (pyz) and trans-1,2-bis(diphenylphosphino)ethylene (dppene); X=Cl, NO2) in acetonitrile and methanol solutions during steady state irradiation at lambda=450 nm was studied. Compounds 1 and 2 (L=bpy, X=Cl) with both bridging and terminal dppene ligands were found to be photochemically inert. The irradiation of compounds 1 and 2 with BL=pyz and 4,4'-bpy resulted in the formation of solvate complexes [RuL(2)(Solv)X](+) (3) in both acetonitrile and methanol; however, the photolysis of 2 proceeded via a mixture (1:1) of 1 and 3 in the first step. The quantum yields of the processes under study are discussed in terms of the excited states.

引用

页码：99 / 103

页数：5

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