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- W2227188498 abstract "Catalytic functions of Cs2.5H0.5PW12O40, an acidic salt of dodecatungstophosphoric acid, were investigated for hydration of olefins in large excess water and pinacol rearrangement in a solvent-free solid–solid system. Cs2.5H0.5PW12O40 worked as insoluble fine particles constructed by aggregated microcrystallites during the hydration; the particle size was determined to be 40–200 nm when dispersed in water. Hydration of 2,3-dimethyl-2-butene was efficiently catalyzed by the fine particles at 343 K. Furthermore, the heteropoly compound catalyzed solid–solid pinacol rearrangement at room temperature, the mesoporous structure of Cs2.5H0.5PW12O40 being retained. The catalytic activities of Cs2.5H0.5PW12O40 for these reactions were found to be higher than those of other conventional solid catalysts." @default.
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- W2227188498 date "1999-08-06" @default.
- W2227188498 modified "2023-10-18" @default.
- W2227188498 title "Unique catalysis of an acidic salt of heteropoly acid, Cs2.5H0.5PW12O40, consisting of microcrystallites" @default.
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- W2227188498 doi "https://doi.org/10.1016/s0920-5861(99)00059-0" @default.
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