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Polarity and structure of P(X)-modified (X = O,S) arylcarbamoylmethylphosphine oxides and sulfides |
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| Authors: | Ya. A. Vereshchagina R. R. Khanafieva D. V. Chachkov O. I. Artyushin E. V. Sharova E. A. Ishmaeva |
| Abstract: | As shown by the dipole moment method and quantum chemical calculations, (arylcarbamoylmethyl) diphenylphosphine oxides and sulfides exist as equilibrium mixtures of several rotational isomers stabilized by H · · · X intramolecular hydrogen bonds (X = O, S). The most energetically favorable rotamer and its fraction have been determined for each compound. |
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