Uranium amides as precursors to cationic and/or pentavalent compounds

被引：10

作者：

Ephritikhine, M ^{[1
]}

Berthet, JC ^{[1
]}

Boisson, C ^{[1
]}

Lance, M ^{[1
]}

Nierlich, M ^{[1
]}

机构：

[1] CEA Saclay, CNRS, URA 331, DRECAM,DSM,Serv Chim Mol, F-91191 Gif Sur Yvette, France

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1998年 / 271卷

关键词：

uranium; amides; cations; pentavalent;

D O I：

10.1016/S0925-8388(98)00042-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The uranium chloroamide complexes [U(NEt2)(n)Cl4-n] (n=1, 2) were isolated from the comproportionation reactions of [U(NEt2)(4)] and UCl4. The protonolysis reaction of the M-NR, bond (M=Ti, Zr, Hf, U; R=Me, Et, SiMe3) with the ammonium salt NHR3'BPh4, (R'=Et, Me) constitutes an efficient and practical route to cationic complexes. Thus were prepared a series of organometallic uranium cations in the +3, +4 and +5 oxidation states. The reactions of these cationic compounds with nucleophiles, proton acidic substrates and unsaturated molecules have been developed. The dialkylamide ligand was useful to stabilize unique examples of neutral and cationic complexes of uranium in the +5 oxidation state. (C) 1998 Elsevier Science S.A.

引用

页码：144 / 149

页数：6

共 34 条

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