ON THE CRYSTAL-CHEMISTRY OF COMPOUNDS WIT H JOHILLERITE STRUCTURE - KCO3CU(AS2.58V0.42)O-12

Authors
FRERICHS D MULLERBUSCHBAUM H
Citation
D. Frerichs et H. Mullerbuschbaum, ON THE CRYSTAL-CHEMISTRY OF COMPOUNDS WIT H JOHILLERITE STRUCTURE - KCO3CU(AS2.58V0.42)O-12, Zeitschrift fur Naturforschung. B, A journal of chemical sciences, 49(11), 1994, pp. 1463-1466
Citations number
15
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Zeitschrift fur Naturforschung. B, A journal of chemical sciences → ACNP
ISSN journal
09320776
Volume
49
Issue
11
Year of publication
1994
Pages
1463 - 1466
Database
ISI
SICI code
0932-0776(1994)49:11<1463:OTCOCW>2.0.ZU;2-W
Abstract
Single crystals of KCo3Cu(As2.58V0.42)O-12 were prepared by solid stat e reactions below the melting point of the reaction mixture (K2CO3, Cu O, CoC2O4, V2O5 and 3 As2O5.5H(2)O). It crystallizes with monoclinic s ymmetry, space group C-2h(6)-C2/c, a = 12.207, b = 12.730, c = 6.811 A ngstrom, beta = 113.69 degrees, Z = 4. The structure type is character ized by isolated twisted-square CuO4-polygons, CoO6-octahedra and a sp ecial 4-4 coordination of the potassium ion. As5+ and V5+ are in tetra hedral coordination with a partly statistical distribution of these io ns.