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A study of complexation of chloral hydrate with heteropoly anions having various structures

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Abstract

1H NMR was applied to study the interaction of chloral hydrate in deuterionitrobenzene solution with tetrabutylammonium salts of the heteropoly acids (HPA) belonging to five structural types: Keggin (H3PW12O40, H3PMo12O40, H4SiW12O40), Dawson (α-H6P2W18O62, α-H6P2Mo18O62, α-H4S2Mo18O62), H6P2W21O71(H2O)3, H6As2W21O69(H2O), and H21B3W39O132. The surface of the HPA anions is nonuniform in acid-base properties. A general rule for all HPA was found, namely, that the HPA acidity increases with a decrease in the specific anion charge (per W or Mo atom).

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Authors and Affiliations

  1. Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 5 prosp. Akad. Lavrent"eva, 630090, Novosibirsk, Russian Federation

    G. M. Maksimov, M. N. Timofeeva & V. A. Likholobov

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  1. G. M. Maksimov
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  2. M. N. Timofeeva
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  3. V. A. Likholobov
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Maksimov, G.M., Timofeeva, M.N. & Likholobov, V.A. A study of complexation of chloral hydrate with heteropoly anions having various structures. Russian Chemical Bulletin 50, 1529–1532 (2001). https://doi.org/10.1023/A:1013009829272

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