The crystal and molecular structure of ammonium vanadyl (+)-tartrate monohydrate
- 1 January 1967
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 1312-1317
- https://doi.org/10.1039/j19670001312
Abstract
The crystal structure of ammonium vanadyl (+)-tartrate has been determined by three-dimensional X-ray diffraction. The tetragonal crystals contain isolated ammonium ions and water molecules and dimeric vanadyl tartrate units [VO(tart)]2 4–. In the vanadyl tartrate dimer each tartrate residue forms two chelate rings, each involving a deprotonated hydroxyl oxygen atom and a carboxyl oxygen atom, to two vanadium atoms. The co-ordination of the vanadium atom is a distorted trigonal bipyramid with the vanadyl oxygen atom in the equatorial plane of the bipyramid. The dimeric complex, and each tartrate residue in it, lie on a crystallographic two-fold axis. The vanadyl tartrate dimers form a three-dimensional hydrogen-bonded network with the ammonium ions and water molecules.Keywords
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