ChemInform Abstract: Electronic Structures of XMo12O40 Heteropolyanions (X: P, As, Si, and Ge) and Their Reduction Behavior.

Abstract

Polarographic results show that the relative reducibility of the title anions is in the order (AsMo12O40)3‐ > (PMo12O40)3‐ > (GeMo12O40)4‐ > (SiMo12O40)4‐.

Vanadium-substituted Keggin heteropolycompounds as catalysts for ecofriendly liquid phase oxidation of 2,6-dimethylphenol to 2,6-dimethyl-1,4-benzoquinone

“…The effect of substituting one Mo atom by one V atom (entries 1 and 9 for acids, 4 and 10 for salts) was very important for improving the catalytic activity of the heteropolycompound. Then the redox property of V was also proved in agreement with the redox potential values reported in the bibliography, 0.52 V for H 3 PMo 12 O 40 [27] and 0.65 V for H 4 PMo 11 VO 40 [28].…”