The structure and dynamic behaviour of disubstituted derivatives of [Rh6(CO)16] containing heterobidentate bridging phosphine ligands

被引:13
作者
Grachova, EV
Haukka, M
Heaton, BT
Nordlander, E
Pakkanen, TA
Podkorytov, IS
Tunik, SP
机构
[1] St Petersburg State Univ, Dept Chem, St Petersburg 198504, Russia
[2] Univ Joensuu, Dept Chem, FIN-80101 Joensuu, Finland
[3] Univ Liverpool, Dept Chem, Liverpool L69 7ZD, Merseyside, England
[4] Lund Univ, Ctr Chem, SE-22100 Lund, Sweden
[5] SV Lebedev Cent Synthet Rubber Res Inst, St Petersburg 198035, Russia
关键词
D O I
10.1039/b211790h
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The solution structures and dynamic behaviour of [Rh-6(CO) 14(mu-PX)] [PX = diphenyl(2-pyridyl) phosphine, (PN); diphenyl(2-thienyl) phosphine, (PS); diphenyl(vinyl) phosphine, (PV)] have been studied by multinuclear NMR and the X-ray structure of [Rh-6(CO)(14)(mu,kappa(3)-PV)] is reported. In solution, the above clusters undergo a variety of localised CO-exchanges and the mechanisms of these are discussed. The PV ligand in [Rh-6(CO)(14)(mu,kappa(3)-PV)] is hemilabile and exhibits facile exchange/reorientation of the vinyl group.
引用
收藏
页码:2468 / 2473
页数:6
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