Two Novel Vanadium Tellurites Covalently Bonded with Metal−Organic Complex Moieties: M(phen)V₂TeO₈ (M = Cu, Ni)

Two novel two-dimensional organic−inorganic hybrid vanadium tellurites M(phen)V2TeO8 (M = Cu (1), Ni (2)) have been hydrothermally synthesized and characterized by the elemental analyses, IR spectra, EPR spectrum, XPS spectra, TG analyses, and single-crystal X-ray diffraction. Compound 1 crystallizes in the monoclinic system, space group P21/c, with a = 9.2193(18) Å, b = 7.9853(16) Å, c = 21.401(4) Å, β = 97.54(3)°, and Z = 4. Compound 2 crystallizes in the monoclinic system, space group P21/c, with a = 9.2163(18) Å, b = 7.9897(16) Å, c = 21.386(4) Å, β = 97.52(3)°, and Z = 4. Compounds 1 and 2 are isostructural, and both exhibit interesting two-dimensional networks with [V2TeO8]∞ double-chain-like ribbons bridged by metal−organic complex moieties [M(phen)]2+ (M = Cu and Ni). Furthermore, the three-dimensional supramolecular architectures of compounds 1 and 2 are formed by π−π stacking interactions of phen groups between adjacent layers.