Disubstituted tungstosilicates. 2. gamma. - and. beta. -isomers of (SiV sub 2 W sub 10 O sub 40 ) sup minus 6 : Syntheses and structure determinations by sup 183 W, sup 51 V, and sup 29 Si NMR spectroscopy
Journal Article
·
· Inorganic Chemistry; (United States)
- Univ. of Pierre et Marie Curie, Paris (France)
- Georgetown Univ., Washington, DC (United States)
Addition of vanadium to the divacant {gamma}-(HSiW{sub 10}O{sub 36}){sup 7{minus}} anion gives quantitatively the {gamma}-decatungsto-1,2-divanadosilicate (SiV{sub 2}W{sub 10}O{sub 40}){sup 6{minus}} parent complex. This complex is stable in nonaqueous solution but isomerizes in water. The isomerization was followed by polarography, and depending on the experimental conditions, three geometrical isomers of (SiV{sub 2}W{sub 10}O{sub 40}){sup 6{minus}} were prepared (as pure compounds for two of them). These isomers are characterized by their IR spectra and their {sup 183}W, {sup 51}V, and {sup 29}Si NMR spectra. All have the {beta}-structure with the two vanadium atoms in positions (8,12), (3,12), and (3,8), respectively.
- OSTI ID:
- 6020452
- Journal Information:
- Inorganic Chemistry; (United States), Journal Name: Inorganic Chemistry; (United States) Vol. 30:5; ISSN 0020-1669; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
DATA
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HEAVY NUCLEI
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIGHT NUCLEI
MOLECULAR STRUCTURE
NMR SPECTRA
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
OXYGEN COMPOUNDS
RADIOISOTOPES
REFRACTORY METAL COMPOUNDS
SECONDS LIVING RADIOISOTOPES
SILICATES
SILICON 29
SILICON COMPOUNDS
SILICON ISOTOPES
SPECTRA
STABLE ISOTOPES
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN 183
TUNGSTEN COMPOUNDS
TUNGSTEN ISOTOPES
VANADIUM 51
VANADIUM ISOTOPES
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
DATA
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HEAVY NUCLEI
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIGHT NUCLEI
MOLECULAR STRUCTURE
NMR SPECTRA
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
OXYGEN COMPOUNDS
RADIOISOTOPES
REFRACTORY METAL COMPOUNDS
SECONDS LIVING RADIOISOTOPES
SILICATES
SILICON 29
SILICON COMPOUNDS
SILICON ISOTOPES
SPECTRA
STABLE ISOTOPES
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN 183
TUNGSTEN COMPOUNDS
TUNGSTEN ISOTOPES
VANADIUM 51
VANADIUM ISOTOPES