CONFORMATIONALLY RIGID DIAMIDE COMPLEXES - SYNTHESIS AND STRUCTURE OF TANTALUM(III) ALKYNE DERIVATIVES

被引:55
作者
GUERIN, F [1 ]
MCCONVILLE, DH [1 ]
VITTAL, JJ [1 ]
机构
[1] UNIV WESTERN ONTARIO,DEPT CHEM,LONDON,ON N6A 5B7,CANADA
关键词
D O I
10.1021/om00007a013
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The chelating diamide complexes mer-TaCl3(BDPP) (2), mer-TaCl3(BDPP) (3), and (BDPP)Ta(eta(2)-RC=CR)Cl (4a, R = Pr; 4b, R = Et; 4c, R = Ph) (BDPP = 2,6-(ArNCH2)(2)-NC5H3; Ar = 2,6-Pr-i(2)-C6H3), have been prepared. Proton and carbon NMR data suggest that the alkynes in 4a-c rotate rapidly on the NMR time scale. An X-ray study of(BDPP)Ta(eta(2)-PrC=CPr)Cl (4a) revealed a distorted-square-pyramidal geometry with the chloride occupying the apical position.
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页码:3154 / 3156
页数:3
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