Nonplanar sigma(2),pi- and planar sigma(2)-enediamide coordinations of 1,4-di(p-methoxyphenyl)-1,4-diaza-1,3-butadiene (=MeOC6H4-DAD) on Ta(eta(5)-C5R5) fragments (R=H,Me): Crystal structures of TaCl2(sigma 2,pi-MeOC6H4-dad)(eta(5)-C5H5) and Ta(sigma(2)-MeOC6H4-dad)(eta(5)-C5Me5)(eta(4)-1,3-butadiene)

被引：32

作者：

Mashima, K

Matsuo, Y

Tani, K

机构：

[1] Department of Chemistry, Grad. School of Engineering Science, Osaka University, Toyonaka

来源：

CHEMISTRY LETTERS | 1997年 / 08期

关键词：

ALPHA-OLEFINS; COMPLEXES; CATALYSTS; POLYMERIZATION; CHEMISTRY; ETHYLENE;

D O I：

10.1246/cl.1997.767

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Treatment of TaCl4(eta(5)-C5R5) [1; R = H (a), R = Me (b)] with a dilithio compound of 1,4-di(p-methoxyphenyl)-1,4-diaza-1,3-butadiene (abbr. MeOC6H4-DAD) gave TaCl2(sigma(2),pi-MeOC6H4-dad)(eta(5)-C5R5) [2; R = H (a), R = Me (b)]. Complexes 2 reacted with a magnesium-butadiene compound to afford Ta(sigma(2)-MeOC6H4-dad)(eta(5)-C5R5)(eta(4)-1,3-butadiene) [3; R = H (a), R = Me (b)]. Crystal structures of 2a and 3b were determined by X-ray analysis.

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页码：767 / 768

页数：2

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