ChemInform Abstract: NbNi2.38Te3, a New Metal-Rich Niobium Telluride with a “Stuffed” TaFe1+ xTe3 Structure.

The authors report the synthesis, structure, and electrical properties of NbNi{sub 2.38}Te{sub 3}. The structure of the compound was determined by X-ray crystallography and the electric conductivity of the compound was measured.

NbxRu6-xTe8, New Chevrel-Type Clusters Containing Niobium and Ruthenium,

Phases of composition Nb(x)()Ru(6)(-)(x)()Te(8) were prepared by reacting stoichiometric mixtures of the elements at high temperature in evacuated silica ampules. The structure of Nb(3.33)Ru(2.67)Te(8) was refined from X-ray powder data using the Rietveld method. Nb(3.33)Ru(2.67)Te(8) crystallizes isotypic with Mo(6)Q(8) (Q = S, Se, Te) in the rhombohedral space group Rthremacr; with the hexagonal lattice parameters a = 10.34106(5) Å, c = 11.47953(7) Å, and Z = 3. Its structure consists of M(6)Te(8) mixed-metal clusters (M = Nb, Ru) which are connected by intercluster M-Te bonds to form a three-dimensional network. Metal-metal bonding in these phases is analyzed in terms of Pauling bond ord…

ChemInform Abstract: NbxRu6-xTe8, New Chevrel-Type Clusters Containing Niobium and Ruthenium.