Thomas Reeswinkel, K. Sparta, G. Roth
Apr 15, 2008
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Influential Citations
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Journal
Acta crystallographica. Section C, Crystal structure communications
Abstract
The tribarium dilithium divanadate tetrachloride Ba(3)Li(2)V(2)O(7)Cl(4) is a new vanadate with a channel structure and the first known vanadate containing both Ba and Li atoms. The structure contains four non-equivalent Ba(2+) sites (two with m and two with 2/m site symmetry), two Li(+) sites, two nonmagnetic V(5+) sites, five O(2-) sites (three with m site symmetry) and four Cl(-) sites (m site symmetry). One type of Li atom lies in LiO(4) tetrahedra (m site symmetry) and shares corners with VO(4) tetrahedra to form eight-tetrahedron Li(3)V(5)O(24) rings and six-tetrahedron Li(2)V(4)O(18) rings; these rings are linked within porous layers parallel to the ab plane and contain Ba(2+) and Cl(-) ions. The other Li atoms are located on inversion centres and form isolated chains of face-sharing LiCl(6) octahedra.