Synthesis And Crystal Structure Of [Cucl(Phen)(2)](3)H3v10o28 Center Dot 7h(2)O

The new compound, [CuCl(phen)(2)](3)H3V10O28 center dot 7H(2)O, was prepared by reaction of an aqueous KVO3 solution (pH 3) with an aqueous solution of CuSO4 center dot 5 H2O in which 1,10-phenanthroline (phen) and KCl were added. The crystal structure of the compound was determined, and the proton position in H3V10O283- were calculated by the bond length/bond number method and also determined from difference electron density map. The protons are bound to colinearly arranged mu-OV2 and mu-OV3 groups which is the common protonation type in trihydrogen decavanadates. The structure crystallizes in P1 space group symmetry. (c) 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.