We thank the Leverhulme Trust and Institut Universitaire de France for the financial support, CalMip and CINES for computational time, and Prof. K. Prassides for magnetic measurements.
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Communication
Lanthanum Does Form Stable Molecular Compounds in the +2 Oxidation State†
Article first published online: 11 JAN 2008
DOI: 10.1002/anie.200704887
Copyright © 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Hitchcock, P., Lappert, M., Maron, L. and Protchenko, A. (2008), Lanthanum Does Form Stable Molecular Compounds in the +2 Oxidation State. Angewandte Chemie International Edition, 47: 1488–1491. doi: 10.1002/anie.200704887
- †
Publication History
- Issue published online: 4 FEB 2008
- Article first published online: 11 JAN 2008
- Manuscript Received: 22 OCT 2007
Funded by
- Leverhulme Trust
- Institut Universitaire de France
Keywords:
- cerium;
- cyclopentadienyl ligands;
- density functional calculations;
- lanthanum;
- reduction
Graphical Abstract
Getting down to business: Reduction of the LaIII tricyclopentadienide complex [LaCp′′3] (Cp′′=η5-1,3-(SiMe3)2C5H3) 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.