Octahedral ruthenium(II) complexes containing the chiral ligand (4S)-2-[(Sp)-2-(diphenylphosphino)ferrocenyl]-4-(isopropyl)oxazoline (FcPN). X-Ray crystal structures of fac-[RuCl2(PMe3)2(FcPN)] and fac-[RuCl2(dppm)(FcPN)] (dppm = bis(diphenylphosphino)methane)

被引:9
作者
Gimeno, J [1 ]
Lastra, E
Madrigal, C
Graiff, C
Tiripicchio, A
机构
[1] Univ Oviedo, Fac Quim, Dept Quim Organ & Inorgan,Unidad Asociada, Inst Univ Quim Organomet Enrique Moles,CSIC, Oviedo 33006, Spain
[2] Univ Parma, Dipartimento Chim Gen & Inorgan, Ctr Studio Strutturist Diffrattometr, CNR, I-43100 Parma, Italy
关键词
ruthenium(II); chiral ligand; ferrocenylphosphine; ferrocenyloxazoline;
D O I
10.1016/S0022-328X(01)00949-4
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Octahedral ruthenium(II) complexes containing the chiral ligand (4S)-2-[(S-p)-2-(diphenylphosphino)ferrocenyl]-4-(isopropyl)oxazoline (FcPN) have been prepared from complex [RuCl2(PPh3)(FcPN)] (1) via phosphine exchange reactions. Complex I reacts with PMe3, PMe2Ph, bis(diphenylphosphino)methane (dppm) and 1,2-bis(diphenylphosphino)ethane (dppe) affording in good yield the complexes [RuCl2L2(FcPN)] (L = PMe3 (2a), PMe2Ph (2b)) and [RuCl2(L-L)(FcPN)] (L-L = dppm. (3a), dppe (4)). The processes are stereoselective giving rise to the thermodynamically stable fac isomers. The kinetically controlled formation of the mer isomer [RuCl2(dppm)(FcPN)] (3b) is also described. Structural characterization of the complexes has been carried out by means of H-1-, P-31{H-1}- and C-13{H-1}-NMR spectroscopy and the crystal structures of the complexes 2a and 3a have been determined by X-ray diffraction methods. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:463 / 468
页数:6
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