Photoinduced isomerisation of cis-[M(L-S,O)2] (M = PtII and PdII) complexes of N,N-diethyl-N'-3,4,5-trimethoxybenzoylthiourea:: key to preparation of the trans isomer

被引:30
|
作者
Hanekom, D [1 ]
McKenzie, JM [1 ]
Derix, NM [1 ]
Koch, KR [1 ]
机构
[1] Univ Stellenbosch, Dept Chem, ZA-7602 Stellenbosch, South Africa
关键词
D O I
10.1039/b415306e
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In acetonitrile solutions at room temperature, cis-[M(L-S,O)(2)] Pt-II and Pd-II complexes of N,N-diethyl-N'-3,4,5-trimethoxybenzoylthiourea undergo reversible photoinduced isomerisation to the corresponding trans isomer upon irradiation with visible light in the 320 - 570 nm range, the rate and extent of isomerisation being significantly higher for the cis-[Pd(L-S, O)(2)] complex compared to the PtII analogue; in the dark trans-[M(L- S, O)(2)] cleanly reverts back to the cis complex at a rate dependent on the solution temperature, indicating a thermally controlled reverse process.
引用
收藏
页码:767 / 769
页数:3
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