CRYSTAL STRUCTURE OF THE FIBRILLAR ZINC TRIMOLYBDATE ZNMO3O10-3.75 H2O BY POWDER DIFFRACTION METHODS

摘要

The crystal structure of polycrystalline fibrillar zinc trimolybdate ZnMo3O10. 3.75 H2O, has been solved ab initio by the Powder Diffraction - Direct Methods package POWSIM. The structure was refined by the Rietveld method with final discrepancy factors R-F = 11.0 and R-wp = 21.0%. The structure consists of polymeric chains parallel to the b axis built up of MoO6 octahedra. The space group is Immm (71) with a = 8.8330(6), b = 3.8207(4), c = 15.737(2) Angstrom, V = 531,08(6) Angstrom(3), Z = 2. [References: 19]