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Title: Crystal structure of cobalt molybdate hydrate CoMoO{sub 4}.nH{sub 2}O

We have determined the crystal structure of the title compound, which has a triclinic cell with cell parameters of a=6.844A, b=6.933A, c=9.339A, {alpha}=76.617{sup o}, {beta}=84.188{sup o}, {gamma}=74.510{sup o} and space group P1-bar. The crystal structure suggests the chemical formula CoMoO{sub 4}.3/4H{sub 2}O. The structure consists of MoO{sub 4} tetrahedra and CoO{sub 6} octahedra, confirming the earlier X-ray absorption near-edge spectroscopic (XANES) investigation on the hydrate. The comparison of the crystal structures of the hydrate and the {alpha}-,{beta}-, and hp-phases shows that the hydrate exhibits metal cation coordinations similar to those of the {beta}-phase, but had arrangements of CoO{sub 6} and MoO{sub n} polyhedra similar to those of the hp-phase.
Authors:
 [1] ;  [2] ;  [2] ;  [2] ;  [3]
  1. Faculty of Science, Department of Chemistry, Kobe University, Nada-ku, Kobe 657-8501 (Japan). E-mail: eda@kobe-u.ac.jp
  2. Faculty of Science, Department of Chemistry, Kobe University, Nada-ku, Kobe 657-8501 (Japan)
  3. Institute for Materials Research, State University of New York at Binghamton, Binghamton, NY 13902-6000 (United States)
Publication Date:
OSTI Identifier:
20729086
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 178; Journal Issue: 9; Other Information: DOI: 10.1016/j.jssc.2005.06.014; PII: S0022-4596(05)00273-2; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION SPECTROSCOPY; CATIONS; COBALT COMPOUNDS; HYDRATES; MOLYBDATES; SPACE GROUPS; TRICLINIC LATTICES; X-RAY SPECTROSCOPY