Abstract
Two new β-octamolybdate supported metal complexes [NH4][Y(DMF)5(H2O)3][Mo8O26] · 2CH3CN (1) and [NH4][Ce(DMF)7Mo8O26] (2) have been synthesized in mixed water and acetonitrile by reaction of (NH4)6Mo7O24 · 4H2O with MCl3 (M3+ = Y for 1 and Ce for 2), DMF (DMF = N,N-Dimethylformamide) and characterized by elemental analysis, IR spectra, TG analysis, and single-crystal X-ray structural analysis. The single crystal X-ray diffraction analysis reveals that compound 1 consists of discrete [NH4][Y(DMF)5(H2O)3][Mo8O26] · 2CH3CN, constructed from β-octamolybdate subunits [Mo8O26]4−, ammonium cations, [Y(DMF)5(H2O)3]3+ cations and two acetonitrile molecules of crystallization. Y3+ is eight-coordinate with five DMF ligands and three water molecules. Compound 2 is built up from DMF coordinated CeIII fragment and β-octamolybdate units joined together via two terminal oxygen atoms of two molybdenum atoms.
Acknowledgments
This work is supported by the Natural Science Foundation of Liaoning Province of China (Grant No. 20032104) and Education Department of Liaoning Province of China (Grant No. 05L214).