Synthesis and characterization of a polyvanadate polyester involving a monodentate alcohol, [(n-C4H9)4N][V6O12(OCH3)7]
作者： Dong Hou , Gyu-Shik Kim , Karl S. Hagen , Craig L. Hill
DOI: 10.1016/S0020-1693(00)85590-5
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摘要: Abstract Polyvanadates are of interest in conjunction with new materials and catalysis, sensor technology, enzymology. We report here the preparation, X-ray structure other properties compound, heptamethoxyhexavanadate, [V6O12(OCH3)7]− (1). Crystalline (n-Bu4N)[V6O12(OCH3)7] (a=10.184(4), b=12.742(4), c=17.148(5) A, α=72.62(3), β=73.42(3), γ=70.92(3)°, Z=2, space group=P 1 ) contains a total seven μ2-(OCH3) groups one OCH3 having two-fold disorder solid state. NMR on three nuclei (1H, 13C 51V) confirm that retains state anhydrous acetonitrile solution at 25 °C. has quite positive potential: Ef=Epc+Epa/2=−0.344 V versus Fc+/Fc (Epc−Epa=78 mV; n=1 electron).
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