Solid-State Cluster Chemistry

Solid-state cluster chemistry is dominated by octahedral (M 5L8)L6 and (MsLi2)L units which are the focus of this paper. These two cluster types are different in the way the metal octahedral core is surrounded by the ligands. In (MsLg)L6-type clusters (Fig. 6.1a), typical for molybdenum and rhenium halides, chalcogenides, and chalcohalides, eight innei hgands (L ) cap the octahedron faces and six outer ligands (L ) are located in the apical positions [9]. For metals with a smaller number of valence electrons, the (M6L i2)L -type clusters... 

P. Braunstein, L. A. Oro and P. R. Raithby (eds.), Metal Clusters in Chemistry, vol. 1 Molecular Metal Cluster, vol. 2 Catalysis and Dynamics and Physical Properties of Metal Clusters, vol. 3 Nanomaterials and Solid-state Cluster Chemistry, Wiley-VCH, Weinheim, 1999. 

Nanomaterials and Solid-state Cluster Chemistry Ed ted by P. Braurstein, L. A. Oro P. R. Raithby Copyright WILEIY-VCH Verlag GmbH, D-69469 Woinheim (Federal Republic of Germany), 1999... 

Seven contributions covering aspects of transition metal cluster chemistry and one concerning group-14 element clusters constitute this chapter on solid-state cluster chemistry. The general topics discussed are the structures of the cluster compounds and the electronic bonding schemes used to describe them. The importance of the bridges between the molecular units which form the solid-state cluster structures should be emphasized because of the general treatments of the electronic structures by use of modified molecular orbital calculations that are based on discrete cluster units. 

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