Molybdenum chalcogenides

Metal-Metal Bonds in Molybdenum Chalcogenide Halides... [Pg.373]

VII. Molybdenum A recent review of molybdenum chalcogenide halides is contained in a paper of Tsigdinos (432). [Pg.413]

Chevrel R, Gougeon P, Potel M, Sergent M (1985) Ternary molybdenum chalcogenides A route to new extended clusters. J Solid State Chem 57 25-33... [Pg.55]

It has been shown that the electrodeposition of molybdenum chalcogenides from high-temperature molten salts can give large, well-defined crystals of these compounds. The preparation of M0S2 as well as WS2 by electrolytic reduction of fused salts was first reported by Weiss [145], who produced small hexagonal blue-gray platelets under drastic conditions of electrolysis. Schneemeyer and Cohen... [Pg.110]

On account of the fact that the electrode potential of molybdenum is more negative than the discharge potential of hydrogen, principle difficulties arise to cathodically electrodeposit molybdenum chalcogenide films from aqueous solutions. Theoretically, the deposition of pure molybdenum by electrolytic reduction of molybdates in acidic aqueous solutions is possible according to the reaction... [Pg.110]

Hughbanks T, Hoffmann R (1983) Molybdenum chalcogenides Clusters, chains, and extended solids. The approach to bonding in three dimensions. J Am Chem Soc 105 1150-1162... [Pg.343]

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... [Pg.141]

R. Chevrel, Chemistry and structure of ternary molybdenum chalcogenides. Top. Curr. Phys. 32 (1982) 5. [Pg.253]

Infinite chains of Mo3 triangles occur in a variety of solid phases of molybdenum chalcogenides, including MMo3S3 (M = K, Rb, Cs) and Tl2Mo2Se6 the electronic structure of the latter and related systems has been investigated.278... [Pg.1319]

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... [Pg.1320]

Chevrel Phases Ternary molybdenum chalcogenides, M Mo X, are polynuclear clusters of special... [Pg.410]

H.-L.Luo Thin-Film Ternary Superconductors. - H.Nohl, W.Klose, O.K Andersen Band Structures of MxMogXg- and M2Mo6X6-Cluster Compounds. - S.D. Bader, S.K.Sinha, B.P.Schweiss, B.Renker Phonons in Ternary Molybdenum Chalcogenide Superconductors. -F.Pobell, D. Rainer, H. Wiihl Electron-Phonon Interaction in Chevrel-Phase Compounds. - Subject Index. [Pg.284]

A class of metal cluster superconductors of particular Interest consists of ternary molybdenum chalcogenides, conmonly known as the Chevrel phases (13). These phases were the first type of superconducting ternary system found to have relatively high critical temperatures and exhibited the highest known critical magnetic fields (Hc2 before discovery of the copper oxide... [Pg.57]

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