Lanthanum does form stable molecular compounds in the+2 oxidation state

被引:213
作者
Hitchcock, Peter B. [1 ]
Lappert, Michael F. [1 ]
Maron, Laurent [2 ]
Protchenko, Andrey V. [1 ]
机构
[1] Univ Sussex, Dept Chem, Brighton BN1 9QJ, E Sussex, England
[2] Univ Toulouse 3, Lab Nanophys, INSA, F-31077 Toulouse, France
关键词
cerium; cyclopentadienyl ligands; density functional calculations; lanthanum; reduction;
D O I
10.1002/anie.200704887
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Figure Presented) Getting down to business: Reduction of the La III tricyclopentadienide complex [LaCp″3] (Cp″ = η5-1,3-(SiMe3)2C5H 3) by K and [18]crown-6 or [2,2,2]cryptand produced thermally stable mononuclear crystalline lanthanate(II) salts. The La +2 oxidation state in these complexes was confirmed both in solution (EPR) and the solid state (EPR, SQUID, X-ray diffraction) and was supported by a computational study. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:1488 / 1491
页数:4
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