A novel crystal polymorph of volborthite, Cu3V2O7(OH)2·2H2O

Ishikawa, H.; Yamaura, J.; Okamoto, Y.; Yoshida, H.; Nilsen, G.J.; Hiroi, Z.

doi:10.1107/S010827011202536X

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 1
(a) Axial view, (b) plane view and (c) displacement ellipsoid plot, including the asymmetric unit, of the C2/c phase of volborthite. Octahedral and tetrahedral polyhedra coordinated to Cu and V atoms, respectively, are displayed. CuO₆ octahedra form kagome layers separated by V₂O₇ pillars and solvent water molecules. The layer contains a distorted kagome lattice made up of Cu^II ions, represented by thick lines in (b). Displacement ellipsoids are drawn at the 50% probability level in (c). [Symmetry codes: (i) −x + $[{1\over 2}]$ , −y + $[{1\over 2}]$ , −z; (ii) −x, −y, −z; (iii) x − $[{1\over 2}]$ , y − $[{1\over 2}]$ , z; (iv) x, y − 1, z, (v) −x, −y + 1, −z; (vi) −x + $[{1\over 2}]$ , −y + $[{3\over 2}]$ , −z.]

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 68| Part 7| June 2012| Pages i41-i44

doi:10.1107/S010827011202536X

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