Synthesis and crystal structure of Zn2VO(PO4)2, a vanadyl(IV) orthophosphate containing a dimer of edge-sharing ZnO5 square pyramids

K. H. Lii, H. J. Tsai

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Abstract

Reactions in the ZnOVO2P2O5 system afford the new phase Zn2VO(PO4)2, the structure of which was determined by the single-crystal X-ray diffraction method (I4cm, a = 8.9227(13), c = 9.039(3) Å, Z = 4, R = 0.026 for 228 unique reflections). The structure consists of infinite chains of corner-sharing VO6 octahedra along the c-axis and finite chains of edge-sharing ZnO5 and PO4 polyhedra parallel to the 〈110〉 directions. The VO6 octahedra are distorted such that alternately long and short VO bonds along the axis of the infinite chain are formed. The Zn2+ ions exhibit a square pyramidal coordination.

Original languageEnglish
Pages (from-to)291-295
Number of pages5
JournalJournal of Solid State Chemistry
Volume90
Issue number2
DOIs
StatePublished - Feb 1991

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