TORSIONAL ISOMERISM OF BENT METALLOCENE COMPLEXES THE MOLECULAR-STRUCTURE OF BIS(ISOPROPYLCYCLOPENTADIENYL)ZIRCONIUMDICHLORIDE IN THE SOLID-STATE

被引：38

作者：

KRUGER, C

NOLTE, M

ERKER, G

THIELE, S

机构：

[1] UNIV MUNSTER,INST ORGAN CHEM,CORRENSSTR 40,W-4400 MUNSTER,GERMANY

[2] MAX PLANCK INST COAL RES,W-4330 MULHEIM,GERMANY

来源：

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 1992年 / 47卷 / 07期

关键词：

BENT METALLOCENE COMPLEXES; TORSIONAL ISOMERISM; ZIRCONOCENEDIHALIDES;

D O I：

10.1515/znb-1992-0717

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Bis(isopropylcyclopentadienyl)zirconiumdichloride (1) was synthesized by the reaction of isopropylcyclopentadienyl lithium with 1/2 molar equivalent of zirconiumtetrachloride and then crystallized from methylenechloride. Complex 1 crystallizes in space group C2/c with cell parameters a = 24.492(3) angstrom, b = 13.525(l) angstrom, c = 22.894(3) angstrom, beta = 117.90(1)-degrees, Z = 16, R = 0.046, R(W) = 0.057. There are three independent molecular entities of 1 in the asymmetric unit. These represent torsional isomers differing in the relative positions of the isopropyl substituents at the Cp-rings. The three torsional isomers may be described as anti-, syn-, and gauche-like metallocene rotamers.

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页码：995 / 999

页数：5

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