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An one-dimensional mixed-valence molybdenum oxide [Mo3O8(2,2′-bipy)2] has been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction. Red-brown crystals crystallized in the monoclinic system, space group P2(1)/n, a=9.3674(19), b=16.994(3), c=13.956(3) A˚, β=102.66(3)°, V=2167.7(8) A˚3, Z=4 and R=0.0515. The title compound exhibits an infinite one-dimensional chain with organonitrogen donors of 2,2′-bipy groups coordinated directly to the molybdenum oxide framework, where the binuclear units of edge-sharing {MoO4N2} octahedra are linked by {MoO4} tetrahedra through corner-sharing oxygen atoms. Other characterizations by elemental analysis, IR, and thermal analysis are also described. [Copyright &y& Elsevier]

A new bimetallic cluster complex with the formula [{Co(phen)2}2V4O12]·H2O was synthesized from the hydrothermal reaction of V2O5, H2C2O4, Co(NO3)2, 1,10-phenanthroline (phen), (C4H9)4NOH and water. The compound crystallizes in an orthorhombic system with space group Pbcn and unit cell parameters a=19.106(3) A˚, b=15.250(3) A˚, c=16.321(2) A˚, V=4755.4(13) A˚3, Z=4 and R=0.0318. The bimetallic cluster complex [{Co(phen)2}2V4O12]·H2O is composed of a discrete V4O124− cluster covalently attached to two [Co(phen)2]2+ fragments and the discrete hexanuclear bimetallic clusters of [{Co(phen)2}2V4O12]·H2O are further extended into interesting three-dimensional supermolecular arrays via π–π stacking interactions of phen groups. Other characterizations by elemental analysis, IR, and thermal analysis are also described. [Copyright &y& Elsevier]

A new bimetallic cluster complex with the formula [{Mn(phen)2}2V4O12]•1/2 H2O has been synthesized through hydrothermal reaction of vanadate staring material with manganese cation in the presence of nitrogen donor chelating ligand and characterized by single-crystal X-ray diffraction, elemental analysis, IR ,UV-vis, ESR spectrum and thermal analysis. The compound crystallize in the monoclinic space group P21/c with a=18.475(4) A˚, b=11.473(2) A˚, c=23.667(5) A˚, β=97.76(3)°, V=4971(2) A˚3 and Z=4. The structure of [{Mn(phen)2}2V4O12]•1/2 H2O is composed of a discrete V4O4−12 cluster covalently attached to two [Mn(phen)2]2+ fragments. [ABSTRACT FROM AUTHOR]