Vanadium triisopropoxide

P10-13a Vanadium oxides are of interest for various sensor applications, owing to the sharp metai-insutaior transitions they undergo as a function of temperature, pressure, or stress. Vanadium triisopropoxide (VTIPOl was used to grow vanadium oxide films by chemical vapor deposition [J. Eiectroehem. Soc., 136. 897 f 1989)], The deposition rate as a function of VTIPO pressure for two different temperatures follows ... 

Aerogels of titania, titania-silica, and titania-vanadia were prepared with titanium butoxide, silicon ethoxide, and vanadium triisopropoxide as precursors. The titania and titania-silica aerogels were then used as supports for vanadia, introduced by the incipient wetness impregnation of vanadium triisopropoxide and the subsequent calcination at 773 K. 

The synthesis of V2 02,45(alkylamine) nanotubes, by a sol-gel reaction using vanadium oxide triisopropoxide in the presence of hexadecyl amine template and hydrothermal treatment was descrihed [6, 31]. These nanotuhes consist of concentric shells with alternating V202.45(alkylamine) layers. Most of them are obtained as scrolls. Further studies [61] showed that the nanotuhe material could he used as a li insertion electrode. To obtain the electrode material, the nanotubes were refluxed, first, for 24 hours in ethanolic solution of NaCl, in order to remove the hexadecylamine template. Sodium ions were intercalated between... 

As observed in the (arylimido)vanadium(V) triisopropoxides, the crystal structure of the (phenylimido)vanadium(V) ethoxydichloride [(C6H5N)V(OEt)Cl2] (31) reveals the p-ethoxido-bridged dimeric structure with the V(l)-N(l) distance of 1.6554(14) A and the nearly linear C(l)-N(l)-V(l) angle of 173.46(13)°, in which each vanadium atom is coordinated in a trigonal-bipyramidal geometry by bridging... 

Alkylimido)vanadium(V) triisopropoxides are also synthesized by one-step method. The reaction of (l/ ,2/ )-l,2-cyclohexanediamine with an equal amount of VO(0 Pr)3 affords the chiral mononuclear complex [(l/ ,27 )-(2-NH2-c-C6HioN)... 

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