BA3V2O4F8-[V4(O,F)20]8- TETRAMERIC GROUPS OF OCTAHEDRA INSERTED IN A TRIDIMENSIONAL NETWORK OF (FBA4) TETRAHEDRA

Authors
CROSNIERLOPEZ MP DUROY H FOURQUET JL
Citation
Mp. Crosnierlopez et al., BA3V2O4F8-[V4(O,F)20]8- TETRAMERIC GROUPS OF OCTAHEDRA INSERTED IN A TRIDIMENSIONAL NETWORK OF (FBA4) TETRAHEDRA, Zeitschrift fur anorganische und allgemeine Chemie, 619(9), 1993, pp. 1597-1602
Citations number
9
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Zeitschrift fur anorganische und allgemeine Chemie
ISSN journal
00442313 → ACNP
Volume
619
Issue
9
Year of publication
1993
Pages
1597 - 1602
Database
ISI
SICI code
0044-2313(1993)619:9<1597:BTGOOI>2.0.ZU;2-C
Abstract
Ba3V2O4F8 is prepared by hydrothermal synthesis. The crystal structure is established from single crystal X-ray diffraction data: Space grou p Pnnm, Z = 4, a = 9.945(4) angstrom, b = 10.277(1) angstrom and c = 9 .673(1) angstrom (R = 0.0331, R(w) = 0.0315 for 892 independent reflec tions and 86 parameters). The structure is related to that of Ba3Al2F1 2 and is described in terms of isolated [V4(O, F)20]8- tetrameric grou ps of octahedra inserted in a tridimensional network of (FBa4) tetrahe dra. Location of oxygen and fluorine atoms is discussed with the help of bond valence calculations.