behavior of the clusters have been investigated by variable-temperature 13C1H} and 31P1H} NMR, and the kinetics of the isomerization reaction have been measured. The latter indicate that the isomerization proceeds via an associative mechanism which is proposed to involve an intramolecular nucleophilic attack by the coordinated sulfur on an osmium atom. The solid state structures of [Os3(CO)11(Ph2PCH2CH2SMe)]
二苯基膦亚乙基甲基
硫化物Ph 2 PCH 2 CH 2 SMe与[Os 3(CO)11(NCMe)]反应生成[Os 3(CO)11(Ph 2 PCH 2 CH 2 SMe)]。的治疗[O的3(CO)10(NCMe)2 ]与1个当量的P的,S
配体最初产生群集1,2- [O的3(CO)10(μ-PH 2 PCH 2 CH 2SMe)],其中膦和
硫醚部分与
金属三角形的不同
金属原子配位;加入
配体的产率的两个或更多个当量的1,2- [O的3(CO)10(μ-PH 2 PCH 2 CH 2 SME)]和[O的3(CO)10(PH 2 PCH 2 CH 2 SME)2 ]。群集1,2- [O的3(CO)10(μ-PH 2 PCH 2 CH 2 SME)]是亚稳态,并经历在室温下,以形成缓慢异构化反应1,1- [O的3(CO)10(Ph 2 PCH 2 CH 2 SMe)],其中
配体螯合一个Os原子。1,2-和1