A new 3D cadmium molybdenum phosphate with intersecting tunnels: hydrothermal synthesis, structure and electrochemical properties of [C3H12N2](4)[CdMo12O24(HPO4)(6)(PO4)(2)(OH)(6)][(Cd(H2O))(2)].3H(2)O

摘要

A new 3D cadmium molybdenum phosphate [C3H12N2](4)[CdMo12O24(HPO4)(6)(PO4)(2)(OH)(6)][(Cd(H2O))(2)](.)3H(2)O 1 has been hydrothermally synthesized and characterized by IR and XPS spectra, TG analysis and single-crystal X-ray diffraction. The compound 1 crystallizes in the triclinic system, space group P (1) over bar, a = 12.0249(11) Angstrom, b = 12.1873(11) Angstrom, c = 14.8685(16) Angstrom, alpha = 67.916(3)degrees, beta = 74.121(6)degrees, gamma = 63.581(3)degrees, V = 1793.4(3)Angstrom(3), Z = 1. The basic building blocks {Mo6P4} are linked by Cd(1)(2+) ions into a dimer and the dimers are connected by Cd(2)(2+) ions to form a 3D open framework with protonated 1,2-diaminopropane and water molecules filled in the tunnels of the framework. Furthermore, the electrochemical property of this hydrothermally synthesized compound was studied via the method of bulk-modified carbon paste electrodes. (C) 2004 Elsevier B.V. All rights reserved.