Hydrothermal syntheses, structures, and properties of two new potassium vanadium phosphates: K[sub 3](VO)(V[sub 2]O[sub 3])(PO[sub 4])[sub 2](HPO[sub 4]) and K[sub 3](VO)(HV[sub 2]O[sub 3])(PO[sub 4])[sub 2](HPO[sub 4])
Journal Article
·
· Journal of Solid State Chemistry; (United States)
- Univ. of Houston, TX (United States)
Two new potassium vanadium phosphates have been prepared and their structures have been determined from analysis of single crystal X-ray data. The two compounds, K[sub 3](VO)(V[sub 2]O[sub 3])(PO[sub 4])[sub 2](HPO[sub 4]) and K[sub 3](VO)(HV[sub 2]O[sub 3])(PO[sub 4])[sub 2](HPO[sub 4]), are isostructural, except for the incorporation of an extra hydrogen atom into the nearly identical frameworks. The structures consist of a three-dimensional network of [VO][sub n] chains connected through phosphate groups to a [V[sub 2]O[sub 3]] moiety. Magnetic susceptibility experiments indicate that in the case of the di-hydrogen compound, there are no significant magnetic interactions between the three independent vanadium (IV) centers. Crystal data: for K[sub 3](VO)(V[sub 2]O[sub 3])(PO[sub 4])[sub 2] (HPO[sub 4]), M[sub r] = 620.02, orthorhombic space group Pnma (No. 62), a = 7.023(4) [angstrom], b = 13.309(7) [angstrom], c = 14.294(7) [angstrom], V = 1336(2) [angstrom][sup 3], Z = 4, R = 5.02%, and R[sub w] = 5.24% for 1238 observed reflections [I > 3[sigma](I)]; for K[sub 3](VO)(HV[sub 2]O[sub 3])(PO[sub 4])[sub 2](HPO[sub 4]), M[sub r] = 621.04, orthorhombic space group Pnma (No. 62), a = 6.975(3) [angstrom], b = 13.559(7) [angstrom], c = 14.130(7) [angstrom], V = 1336(1) [angstrom][sup 3], Z = 4, R = 6.02%, and R[sub w] = 6.34% for 1465 observed reflections [I > 3[sigma](I)].
- OSTI ID:
- 6654296
- Journal Information:
- Journal of Solid State Chemistry; (United States), Journal Name: Journal of Solid State Chemistry; (United States) Vol. 110:2; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
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Journal Article
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· Journal of Solid State Chemistry; (USA)
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Related Subjects
36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
360606 -- Other Materials-- Physical Properties-- (1992-)
ALKALI METAL COMPOUNDS
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DIFFRACTION
HYDROTHERMAL SYNTHESIS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
ORTHORHOMBIC LATTICES
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
POTASSIUM COMPOUNDS
SCATTERING
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
X-RAY DIFFRACTION
360602* -- Other Materials-- Structure & Phase Studies
360606 -- Other Materials-- Physical Properties-- (1992-)
ALKALI METAL COMPOUNDS
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DIFFRACTION
HYDROTHERMAL SYNTHESIS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
ORTHORHOMBIC LATTICES
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
POTASSIUM COMPOUNDS
SCATTERING
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
X-RAY DIFFRACTION