摘要
A new reduced molybdenum（V） phosphate （H3dien）2（H2dien）2[NaMo12O24 （OH）6 （HEPO4）（HPO4）5（PO4）2]·nH2O （n= 10.92, dien = diethylenetriamine） has been synthesized under hydrothermal conditions and characterized by elemental analyses, IR and X-ray diffraction. C16H96.84MO12N12NaO72.92P8 （Mr = 3046.73） crystallizes in the monoclinic system, space group P21/c with a = 13.3575（18）, b = 21.907（3）, c = 15.654（2）A, β= 110.22（2）°, V= 4298.4（10） A^3 Dc = 2.354 g/cm^3, Z = 2,μ（MoKcr） = 1.966 mm^-1, F（000） = 2990.4, the final R = 0.0357 and wR = 0.1086 for 8739 observed reflections with I 〉 2σ（I）. It consists of sandwich-shaped cluster anions [Na{Mo6P4}2]^10- held together into a three-dimensional supramolecular framework through intermolecular hydrogen-bonding contacts. A probe reaction of the oxidation of acetaldehyde with H2O2 showed that this compound has high catalytic activity in the reaction.
A new reduced molybdenum（V） phosphate （H3dien）2（H2dien）2[NaMo12O24 （OH）6 （HEPO4）（HPO4）5（PO4）2]·nH2O （n= 10.92, dien = diethylenetriamine） has been synthesized under hydrothermal conditions and characterized by elemental analyses, IR and X-ray diffraction. C16H96.84MO12N12NaO72.92P8 （Mr = 3046.73） crystallizes in the monoclinic system, space group P21/c with a = 13.3575（18）, b = 21.907（3）, c = 15.654（2）A, β= 110.22（2）°, V= 4298.4（10） A^3 Dc = 2.354 g/cm^3, Z = 2,μ（MoKcr） = 1.966 mm^-1, F（000） = 2990.4, the final R = 0.0357 and wR = 0.1086 for 8739 observed reflections with I 〉 2σ（I）. It consists of sandwich-shaped cluster anions [Na{Mo6P4}2]^10- held together into a three-dimensional supramolecular framework through intermolecular hydrogen-bonding contacts. A probe reaction of the oxidation of acetaldehyde with H2O2 showed that this compound has high catalytic activity in the reaction.
基金
supported by the Natural Science Foundation of Fujian Province (Nos. E0420001 and E0640006) and NCETFJ
