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DOI: 10.1039/A706529I (Paper) Reference Section for: J. Mater. Chem., 1998, 8, 693-697

New mixed valent vanadium monophosphate with an intersecting tunnel structure Ba2V5O8(PO4)4

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M. M. Borel, A. Leclaire, J. Chardon and B. Raveau

Abstract

A new mixed valent vanadium monophosphate Ba2V5O8(PO4)4 has been synthesized. It crystallizes in the space group I1m1 with a=7.6405(1), b=22.777(1), c=11.6157(7) Å and β=103.38(1)°. Its framework consists of [V4P4O22 ]∞ layers of corner sharing polyhedra, interconnected by VO4 tetrahedra which delimit tunnels in which the barium atoms are located. The vanadium atoms exhibit three kinds of coordination; pyramidal, octahedral and tetrahedral, in the same framework.

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