Epitactic ion-exchange reactions into vanadyl(IV) arsenate
Journal Article
·
· Journal of Solid State Chemistry; (United States)
- Universidad de Malaga (Spain)
The synthesis, structural characterization, thermal stability, and spectroscopic (IR, UV-vis-diffuse reflectance) properties of three vanadyl arsenates are described. Vanadyl(IV) bis(dihydrogenarsenate), (VO(H{sub 2}AsO{sub 4}){sub 2}) (1), lithium vanadyl arsenate, (Li{sub 4}VO(AsO{sub 4}){sub 2}{center dot}0.5H{sub 2}O) (2), and nickel(II) and lithium vanadyl arsenate, ((Li{sub 2.4}Ni){sub 0.8}VO(AsO{sub 4}){sub 2}{center dot}4H{sub 2}O) (3), have been prepared. (1) Tetragonal ({alpha} = 9.128 {angstrom}; c = 8.128 {angstrom}) is prepared by reduction with isobutanol or ethanol from vanadyl(V) arsenate. (2) Cubic (a = 9.024 {angstrom}) is obtained from (1) by lithium ion-exchange, and (3) tetragonal (a = 9.106 {angstrom}; c = 8.454 {angstrom}) is made from (2) by Ni{sup 2+} ion-exchange. These exchange reactions are epitactic and the overall result is a topotactic transformation.
- OSTI ID:
- 5642582
- Journal Information:
- Journal of Solid State Chemistry; (United States), Journal Name: Journal of Solid State Chemistry; (United States) Vol. 91:1; ISSN 0022-4596; ISSN JSSCB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
360602 -- Other Materials-- Structure & Phase Studies
360603 -- Materials-- Properties
ARSENATES
ARSENIC COMPOUNDS
CHEMICAL PREPARATION
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DATA
DIFFRACTION
EXPERIMENTAL DATA
INFORMATION
INFRARED SPECTRA
LATTICE PARAMETERS
NUMERICAL DATA
OXYGEN COMPOUNDS
SCATTERING
SPECTRA
SYNTHESIS
TETRAGONAL LATTICES
TRANSITION ELEMENT COMPOUNDS
ULTRAVIOLET SPECTRA
VANADIUM COMPOUNDS
X-RAY DIFFRACTION
360601* -- Other Materials-- Preparation & Manufacture
360602 -- Other Materials-- Structure & Phase Studies
360603 -- Materials-- Properties
ARSENATES
ARSENIC COMPOUNDS
CHEMICAL PREPARATION
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DATA
DIFFRACTION
EXPERIMENTAL DATA
INFORMATION
INFRARED SPECTRA
LATTICE PARAMETERS
NUMERICAL DATA
OXYGEN COMPOUNDS
SCATTERING
SPECTRA
SYNTHESIS
TETRAGONAL LATTICES
TRANSITION ELEMENT COMPOUNDS
ULTRAVIOLET SPECTRA
VANADIUM COMPOUNDS
X-RAY DIFFRACTION