SYNTHESIS, PROPERTIES AND MOLECULAR-STRUCTURE OF 5-COORDINATE N,N-DIBENZYLDITHIOCARBAMATE COMPLEXES OF TITANOCENE, ZIRCONOCENE AND HAFNOCENE

被引：13
|
作者：
WANG, ZQ [1 ]
LU, SW [1 ]
GUO, HF [1 ]
HU, NH [1 ]
机构：
[1] ACAD SINICA,CHANGCHUN INST APPL CHEM,CHANGCHUN,PEOPLES R CHINA
来源：
POLYHEDRON | 1992年 / 11卷 / 09期
关键词：
D O I：
10.1016/S0277-5387(00)84485-X
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The five complexes (RC5H4)2M(S2CNBz2)Cl (R = H, CH3; M = Ti, Zr, Hf; Bz = CH2C6H5) have been prepared by the reaction of (RC5H4)2MCl2 with anhydrous sodium salts of dibenzyldithiocarbamate in refluxing CH2Cl2. These complexes have been characterized by elemental analysis, IR and H-1 NMR. X-ray crystal structure determination of Cp2Zr(S2CNBZ2)Cl shows the molecule has a five-coordinate bent metallocene geometry in which the zirconium atom is attached to two eta-5-C5H5 groups, one bidentate dibenzyldithiocarbamate ligand and one chlorine [Zr-Cl, 2.549(1) angstrom; Zr-S, 2.734(1), 2.667(1); Cl-Zr-S, 137.6(1)-degrees and 73.3(1)-degrees; S-Zr-S, 64.3(1)-degrees]. The catalytic system Cp2Ti (S2CNBZ2)Cl-NaH exhibits high initial catalytic activity of hydrogenation of hexene-1 under mild conditions.
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收藏
页码：1131 / 1135
页数：5
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