SYNTHESIS AND REACTIVITY OF SUBSTITUTED CYCLOPENTADIENYL DIPHENYLPHOSPHIDO COMPLEXES OF ZIRCONIUM(IV) - X-RAY CRYSTAL-STRUCTURE OF [(C5H4SIME3)2ZR(PPH2)2]

被引:21
|
作者
LARSONNEUR, AM
CHOUKROUN, R
DARAN, JC
CUENCA, T
FLORES, JC
ROYO, P
机构
[1] UNIV PAUL SABATIER, CNRS,UPR 8241,CHIM COORDINAT LAB, 205 ROUTE NARBONNE, F-31077 TOULOUSE, FRANCE
[2] UNIV PARIS 06, CHIM MET TRANSIT LAB, F-75230 PARIS 05, FRANCE
[3] UNIV ALCALA DE HENARES, FAC CIENCIAS, DEPT QUIM INORGAN, E-28871 ALCALA DE HENARES, SPAIN
[4] INST NATL POLYTECH TOULOUSE, F-31077 TOULOUSE, FRANCE
关键词
D O I
10.1016/0022-328X(93)83058-4
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The syntheses of [(C5H4SiMe3)2Zr(PPh2)2] (1) and [(C5H5)(C5Me5)Zr(PPh2)2] (2) are described. The X-ray crystal structure of 1 has been determined (monoclinic, P2(1)/n; a = 17.951(8); b = 23.776(11); c = 9.163(10) angstrom; beta = 99.29(6)-degrees; Z = 4) and it contains two distinct types of phosphido-ligands. Cyclic voltammetry measurements and chemical reduction of 1 are described, and the monophosphido Zr(III) adduct species, [(C5H4SiMe3)2Zr(PPh2)(PhC=CH)] identified by electron spin resonance spectroscopy. Reaction of 1 with the rhodium complex [Rh2(mu-S-tBu)2(CO)4] affords the heterometallic complex [{C5H4SiMe3)2Zr(mu-PPh2)2(Rh(mu-S-tBu)2Rh}(mu-PPh2)2Zr(C5H4SiMe3)2](3). The catalysis of the hydroformylation of 1-hexene with 3 as catalyst has been investigated.
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页码:83 / 89
页数:7
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