ON A CADMIUM RICH ORTHOVANADATE BA2,5CD11 (VO4)(9) SHOWING CADMIUM INOCTAHEDRAL AND SQUARE PYRAMIDAL COORDINATION

Authors
MERTENS B MULLERBUSCHBAUM H
Citation
B. Mertens et H. Mullerbuschbaum, ON A CADMIUM RICH ORTHOVANADATE BA2,5CD11 (VO4)(9) SHOWING CADMIUM INOCTAHEDRAL AND SQUARE PYRAMIDAL COORDINATION, Zeitschrift fur Naturforschung. B, A journal of chemical sciences, 52(8), 1997, pp. 989-993
Citations number
35
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Zeitschrift fur Naturforschung. B, A journal of chemical sciences → ACNP
ISSN journal
09320776
Volume
52
Issue
8
Year of publication
1997
Pages
989 - 993
Database
ISI
SICI code
0932-0776(1997)52:8<989:OACROB>2.0.ZU;2-#
Abstract
Single crystals of Ba2,5Cd11(VO4)(9) have been prepared by solid state reactions. The new compound crystallizes with orthorhombic symmetry, space group D-2h(14)-Pbcn, a = 20.842(6), b = 13.471(3), c = 11.838(9) Angstrom, Z = 4. The crystal structure is characterized and dominated by CdO6 octahedra and unusual square pyramids of O2- around Cd2+ form ing a three-dimensional [Cd11O36] network. The interstices are occupie d by V5+ and Ba2+ ions. This results in VO4 tetrahedra and irregular B aO10 polyhedra isolated from each other. Occupation of the barium posi tions is deficient in agreement with the valence state V5+ and calcula tions of the coulomb terms of lattice energy.