Synthesis of heteroleptic uranium compounds including an asymmetric, sterically unsaturated, bimetallic, organouranium(IV) halide:: (C5Me5)(C8H8)ClU(μ-Cl)U(C8H8)(C5Me5)

被引：16

作者：

Evans, WJ ^{[1
]}

Kozimor, SA ^{[1
]}

Ziller, JW ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA

来源：

POLYHEDRON | 2006年 / 25卷 / 02期

关键词：

cyclopentadienyl; cyclooctatetraenyl; uranium; heteroleptic; chiral metal complex; bimetallic;

D O I：

10.1016/j.poly.2005.07.015

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

K(2)CgH(8) reacts with (C5Me5)(2)UCl2 not by substitution of both chlorides, but by Cl1- and (C5Me5)(1-) ligand displacement to form an asymmetric, sterically unsaturated, mixed ligand metallocene chloride complex, (C5Me5)(C8H8)ClU(mu-Cl)U(C8H8)(C5Me5) (1) Complex 1 is a tetravalent uranium analogue of the asymmetric trivalent yttrium bimetallic complex, (C5Me5)(2)ClY(mu-Cl)Y(C5Me5)(2) (2), that has been used to evaluate coordination of bases with electropositive trivalent metallocenes. Tetravalent 1 similarly coordinates Lewis bases as demonstrated by its reaction with epsilon-caprolactam that generates a complex with four different ligands, (C5Me5)(C8H8)UCl[OCNH(CH2)(5)] (3). Complex 1 also participates in ionic salt metathesis reactions with KN(SiMe3)(2) to form (C5Me5)(C8H8)U[N(SiMe3)(2)] (4). (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：484 / 492

页数：9

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