The preceding page shows Figure 27c of this article.
Clusters of Valence Electron Poor Metals—Structure, Bonding, and Properties†
Article first published online: 22 DEC 2003
Copyright © 1988 by VCH Verlagsgesellschaft mbH, Germany
Angewandte Chemie International Edition in English
Volume 27, Issue 1, pages 159–183, January 1988
How to Cite
Simon, A. (1988), Clusters of Valence Electron Poor Metals—Structure, Bonding, and Properties. Angew. Chem. Int. Ed. Engl., 27: 159–183. doi: 10.1002/anie.198801591
- Issue published online: 22 DEC 2003
- Article first published online: 22 DEC 2003
- Manuscript Received: 3 SEP 1987
- Solid-state reactions;
- Cluster compounds;
- Metal–metal interactions
Metals in low oxidation states are capable of forming metal–metal bonds. An attempt has been made to classify the numerous phases and structures occurring in such metal-rich systems of valence electron poor metals in some sort of order from a rather general point of view. With this purpose in mind, clusters of these elements, their different types of interconnections, and their condensation via shared metal atoms, which finally leads to extended MM bonded structures, are described. Interstitial atoms play an important role in stabilizing electron deficient clusters, and can actually lead to the loss of all MM bonds. Surprising similarities emerge between apparently very different systems as the metal-rich oxides of alkali metals, the oxides, halides, and chalcogenides of d transition metals, and the halides and carbide halides of the lanthanoids.