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Dibarium zirconium tetraoxalate trihydrate
Bénédicte Vertruyen1, Bénédicte Robertz, Bernard Guillaume
1LCIS/SUPRATECS, Institut de Chimie B6, Université de Liège, Sart Tilman, B-4000 Liège, Belgium.
Abstract:
A new mixed barium zirconium oxalate, triaquatetra-mu-oxalato-dibarium(II)zirconium(IV), Ba(2)Zr(C(2)O(4))(4).3H(2)O or [Ba(2)Zr(C(2)O(4))(4)(H(2)O)(3)](n), has been synthesized. The complex is built from eightfold-coordinated Zr atoms and eleven- and sixfold-coordinated Ba atoms, linked by oxalate groups. The Zr atom, the two Ba atoms and one water O atom lie on crystallographic twofold axes, so that each coordination polyhedron has imposed C2 symmetry. Packing in the crystal is also assumed through hydrogen bonds.