Synthesis and unexpected reactivity of [Ru(η6-cymene)Cl2(PPh2Cl)], leading to [Ru(η6-cymene)Cl2(PPh2H)] and [Ru(η6-cymene)Cl2(PPh2OH)] complexes

被引：0
|
作者：
ARUN KUMAR PANDIAKUMAR
ASHOKA G SAMUELSON
机构：
[1] Indian Institute of Science,Department of Inorganic and Physical Chemistry
来源：
Journal of Chemical Sciences | 2015年 / 127卷
关键词：
1-Phenylethane-1,2-diol; chlorodiphenylphosphine; diphenylphosphine; diphenylphosphinous acid; half sandwich ruthenium complexes;
D O I：
暂无
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学科分类号：
摘要：
The reaction of [Ru(η6-cymene)Cl2]2 and PPh2Cl in the ratio 1:2 gives a stable [Ru(η6-cymene) Cl2(PPh2Cl)] complex. Attempts to make the cationic [Ru(η6-cymene)Cl(PPh2Cl)2]Cl with excess PPh2Cl and higher temperatures led to adventitious hydrolysis and formation of [Ru(η6-cymene)Cl2(PPh2OH)]. Attempts to make a phosphinite complex by reacting [Ru(η6-cymene)Cl2]2 with PPh2Cl in the presence of an alcohol results in the reduction of PPh2Cl to give [Ru(η6-cymene)Cl2(PPh2H)] and the expected phosphinite. The yield of the hydride complex is highest when the alcohol is 1-phenyl-ethane-1,2-diol. All three half-sandwich complexes are characterized by X-ray crystallography. Surprisingly, the conversion of chlorodiphenylphosphine to diphenylphosphine is mediated by 1-phenyl-ethane-1,2-diol even in the absence of the ruthenium half-sandwich precursor.
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页码：1329 / 1338
页数：9
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