Synthesis and molecular structures of uranium and thorium diamidoamine complexes

被引：21
作者：
Wilson, DJ
Sebastian, A
Cloke, FGN [1 ]
Avent, AG
Hitchcock, PB
机构：
[1] Univ Sussex, Sch Chem Phys & Environm Sci, Brighton BN1 9QJ, E Sussex, England
[2] Univ Alcala de Henares, Dept Quim Inorgan, E-28871 Alcala De Henares, Spain
来源：
INORGANICA CHIMICA ACTA | 2003年 / 345卷
基金：
英国工程与自然科学研究理事会;
关键词：
uranium; thorium; diamidoamine; amide; X-ray;
D O I：
10.1016/S0020-1693(02)01296-3
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Treatment of UCl4 or ThCl4 with Li-2[Me3SiN{CH2CH2NSiMe3}(2)] affords the mono-diamidoamine complexes [M(Me-3-SiN{CH2CH2NSiMe3}(2))Cl-2(THF)] (M=U, Th), and also the bis-diamidoamine complexes [M(Me3SiN{CH2CH2NSiMe3}(2))(2)] (M = U, Th). The base-free complex [U(Me3SiN{CH2CH2NSiMe3}(2))Cl-2](2) was obtained by treatment of [U(Me3SiN{CH2CH2NSi-Me-3}(2))Cl-2(THF)] with hot toluene. The X-ray structures of [Th(Me3SiN{CH2CH2NSiMe3}(2))Cl-2(THF)] and [U(Me3SiN {CH2CH2NSiMe3}(2))Cl-2](2) reveal a distorted octahedral geometry, whereas [M(Me3SiN{CH2CH2NSiMe3}(2))(2)] (M=U, Th) display trigonal bipyramidal geometry at the metal centre and the amino group on one of the diamidoamine ligands is non-bonding. (C) 2002 Elsevier Science B.V. All rights reserved.
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页码：89 / 94
页数：6
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