Chalcogenides physical properties

Se-I 100, 185). These chalcogenide halide glasses belong to the so-called "semiconducting glasses that have attracted much attention in solid-state physics, because of their physical properties (see Section XII,B) they are, however, not treated in this review. 

Some Physical Properties of Antimony and Bismuth Chalcogenide Halides... 

The situation is very similar in the Chevrel phases. These are ternary molybdenum chalcogenides A,.[Mo6Xg] (A = metal, X = S, Se) that have attracted much attention because of their physical properties, especially as superconductors. The parent compound is PbMo6Sg it contains Mo6Sg clusters that are linked with each other in such a way that the free coordination sites of one cluster are occupied by sulfur atoms of adjacent clusters (Fig. 13.9). The electric properties of Chevrel phases depend on the number of valence electrons. With 24 electrons per cluster (one electron pair for each edge of the... 

Abstract This review highlights how molecular Zintl compounds can be used to create new materials with a variety of novel opto-electronic and gas absorption properties. The generality of the synthetic approach described in this chapter on coupling various group-IV Zintl clusters provides an important tool for the design of new kinds of periodically ordered mesoporous semiconductors with tunable chemical and physical properties. We illustrate the potential of Zintl compounds to produce highly porous non-oxidic semiconductors, and we also cover the recent advances in the development of mesoporous elemental-based, metal-chalcogenide, and binary intermetallic alloy materials. The principles behind this approach and some perspectives for application of the derived materials are discussed. 

Mo4 clusters have been identified in many solid phases of molybdenum chalcogenides including PbMo6S8,278 MoSX (X - Cl, Br,I)2 and GaMo4(YY ) (Y, Y - S, Se, Te)-290 the physical properties of these systems are of particular significance. Tetrahedral arrays of... 

The highly diverse class of solid-state chalcogenides marks an important area of inorganic chemistry. Its importance stems from multiple perspectives, including its role in being part of the foundation on which inorganic chemistry advances, its role as a basis for compounds with exceptional structural as well as physical properties, and finally its capacity to provide materials of technological relevance. The last two aspects were not touched upon in this article for reasons of space. Undoubtedly, a remarkable diversity in structure,... 

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