3000b - web version

VANADIUM
Atomic number
Crystal form
Oxidation states
Atomic weight
Electrical resistivity (20°C)
Electronegativity, Pauling
CAS number
Enthalpy of melting
Specific heat (25°C)
Boiling point
Enthalpy of vaporization
Thermal conductivity (25°C)
V 3380°C
Melting point
Ionization potential
Specific gravity (20°C)
bp/mm (mp)
COMPOUNDS
C20H18O5V soluble: xylene, 2-ethylhexanoic acid, 2-ethylhexylamine HYDROLYTIC SENSITIVITY: 4 no reaction with water under neutral conditions forms nanocrystalline V2O5 thin films by PE-CVD1.
1. D. Barreca et al, Chem. Mater., 12, 98, 2000HYDROLYTIC SENSITIVITY: 4 no reaction with water under neutral conditions catalyst for the polymerization of olefinsforms electrically conductive VO ELECTRO-
stereospecific oxidation of olefins in combination with t-butylhydroperoxide2,3.
catalyst for preparation of amine oxides4.
3 yields bismuth vanadate catalyst by CVD5.
1. I. Serbinov, Thin Solid Films, 27, 171, 19752. K. Sharpless, J. Am. Chem. Soc., 95, 6136, 19733. B. Rossiter et al, Tet. Lett., 4733, 19794. M. Sheng et al, F&F 2, 456; J. Org. Chem., 33, 588, 19685. D. Barreca, et al, Chem. Mater. 11, 255, 1999 soluble: toluene, ethanol, acetone, methylene chloride reacts slowly with oxygen to form vanadium oxide bis(pentanedionate) employed in ethylene-propylene copolymerization1.
1. Y. Ma et al, Organometallics, 18, 2273, 1999HYDROLYTIC SENSITIVITY: 7 reacts slowly with moisture/water (215) 547-1015
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bp/mm (mp)
HYDROLYTIC SENSITIVITY: 8 reacts rapidly with moisture, water, protic solvents catalyst for the polymerization of olefins1.
highly reactive intermediate for sol-gels with potential applications for humidity sensors and electrochromic display devices2.
forms durable thermochromic gels w/ 10% Ge(OEt) 3 forms clear vanadia-silica aerogels able to polymerize acetylenes4.
forms sol-gel derived Au dispersed electrochromic coatings5.
forms xerogel cathodes for lithium polyelectrolyte cells6.
vanadia-silica sol-gels w/ controlled microporosity for catalysis prepared7.
sol-gel reaction w/ α,ω-diamines followed by hydrothermal treatment yields nanotubes8.
ELECTRO-
1. D. Christman, J. Polym. Sci A-1, 10(2), 471, 1972 2. J. Livage et al, Prog. in Solid State Chem., 18, 259, 1988 3. H. Hirashima et al, J. Non-Crystalline Solids, 121, 168, 19904. A. Stiegman et al, Chem. Mat., 5, 1591, 19935. K. Nagase, J. Mat. Chem., 4, 1581, 19846. J. Mat. Chem., 6, 49, 19967. M. Curran, et al, Chem. Mater. 10, 3156, 19988. M. Curran, et al, Chem. Mater. 11, 1120, 1999HYDROLYTIC SENSITIVITY: 8 reacts rapidly with moisture, water, protic solvents hydrolysis in alcoholic medium yields transparent orange monolithic gels1.
1. C. Sanchez et al, “Better Ceramics Through Chemistry III” ed. J. Brinker, 1988, p93.
VANADIUM OXIDE TRIS(METHOXYETHOXIDE)292.20 1. J. Fell et al, Mat. Lett., 25, 157, 1995 HYDROLYTIC SENSITIVITY: 7 reacts slowly with moisture/water VANADYL ACETYLACETONATE - see AKV900 VANADIUM IV OXIDE BIS(PENTANEDIONATE) YTTERBIUM - see RARE EARTHS
YTTRIUM - see RARE EARTHS
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Source: http://www.gelest.de/goods/pdf/metalOrganicCatalog/23.pdf