Synthesis and structural characterization of (C14H16N2)3(C14H17N2)2[β-Mo8O26]

A novel polyoxomolybdate (C14H16N2)(3)(C14H17N2)(2)[beta-Mo8O26] (1) has been synthesized from hydrothermal reaction of tolidine and molybdenum trioxide in water and characterized by its IR and UV spectra, H-1 NMR, cyclic voltammetry and single crystal X-ray diffraction. Compound 1 crystallizes in the triclinic crystal system, space group PA +/- I", with the crystal cell parameters of a=11.5360 , b=11.6080 , c=15.2520 , alpha=72.50(a similar to), beta=79.46(a similar to), gamma=86.91(a similar to), V=1915.00 (3) and Z=1. The asymmetric unit of the crystal structure of (C14H16N2)(3)(C14H17N2)(2)[beta-Mo8O26] contains beta-octamolybdate [beta-Mo8O26](4-) anions, two tolidine molecules and shows the presence of monoprotonated tolidine cations. One tolidine molecule and a beta-Mo8O26 polyanions species lie across crystallographic inversion centres while the two tolidine molecules occupy general sites.