A novel 3D network structure constructed from centrosymmetric sodium-phosphomolybdate bonding by sodium and zinc atoms

A novel molybdenum (V) phosphate compound, (NH3CH2CH2NH3) (NH3CH2CH2NH2)4Zn2Na(2){Na(1)[Mo6O16(HPO4)3(PO4)(OH)3(H2O)]2} · 3 H2O was synthesized hydrothermally and characterized by elemental analysis, IR, TG-DTA, DRS, BET and single crystal X-ray diffraction. In this compound, the centrosymmetric Na(1)[Mo6P4]2 clusters are linked by Na(2) to produce one-dimensional chains along b axis. Then such 1D chains are further connected by [ZnO4] tetrahedra to construct a three-dimensional (3D) framework with channels occupied by protonated ethylenediamine ions and the water molecules. Photocatalytic reduction of Rhodamine B (RB) in a liquid-solid system shows that the title compound has high photocatalytic activity.