A New Supramolecular Compound Based on Cd(II)-Schiff-base and Keggin-type [PMo12O40]3-

A new supramolecular compound, {[Cd(L)(2)](2)[PMo12O40][NO3]center dot CH3CN center dot 2H(2)O}(n) 1 (L is 1,4-bis(4-imidazolyl)-2,3-diaza-1,3-butadiene), based on Cd(II)-Schiff-base and Keggin-type [PMo12O40](3-) was synthesized via self-assembly and structurally characterized by elemental analysis, infrared spectroscopy, and single-crystal X-ray diffraction analysis. The crystal is of triclinic, space group P (1) over bar with a = 12.0128(11), b = 13.6196(13), c = 13.9995(13) angstrom, alpha = 103.868(2), beta = 95.225(2), gamma = 101.024(2)degrees, V = 2160.0(3) angstrom(3), Z = 1, C34H39N26O45Cd2Mo12P, M-r = 2938.96, D-c = 2.259 g/cm(3), mu = 2.276 mm(-1), F(000) = 1400, the final R = 0.0565 and wR = 0.1613 for 4973 observed reflections with I > 2 sigma(I). The crystal structure can be described by the packing of Keggin anionic and Metal-Schiff-base cationic layers.