Hydrothermal assembly and structural characterization of an unprecedented one-dimensional chain constructed from nickel diphosphopentamolybdate clusters

Abstract

A novel molybdenum phosphate complex, [Ni(1)(en)2(PO4)2Mo5O15][Ni(2)(en)2- (H2O)2] · H2en · 3H2O (1), has been synthesized under hydrothermal conditions. The complex was characterized by elemental analysis, FT-IR, DTA/TG and single crystal X-ray diffraction. The compound is orthorhombic, space group P212121, with a = 12.580(3), b = 17.676(4), c = 17.969(4) Å, V = 3995.5(15) Å3, Z = 4, and was refined to R 1 = 0.0301, wR 2 = 0.0715. It possesses an unprecedented one-dimensional chain structure constructed from molybdenum phosphate clusters and nickel complex fragments.