Abstract
The method of dipole moments and DFT B3LYP/6-31G* quantum-chemical calculations were used to study the structures of ortho-substituted aryl-and arylmethyldiphenyl(diethyl)phosphine oxides. It was established that methyl ethers of phosphorus-containing benzyl alcohols and phenols exist as equilibrium mixtures of several conformers with prevalence of forms with the weakest steric interactions. Preferred conformers of o-[(diethylphosphinoyl)methyl]benzyl alcohol and i-[(diphenylphosphinoyl)methyl]phenol contain an intramolecular hydrogen bond between the hydroxyl hydrogen atom and phosphinoyl oxygen atom.
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Original Russian Text © E.A. Ishmaeva, A.A. Gazizova, Ya.A. Vereshcjhagina, N.A. Bondarenko, 2008, published in Zhurnal Obshchei Khimii, 2008, Vol. 78, No. 9, pp. 1429–1434.
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Ishmaeva, E.A., Gazizova, A.A., Vereshcjhagina, Y.A. et al. Dipole moments and structure of ortho-diphenyl(diethyl)phosphinoyl-substituted benzyl alcohols, phenols, and their derivatives. Russ J Gen Chem 78, 1662–1667 (2008). https://doi.org/10.1134/S1070363208090041
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DOI: https://doi.org/10.1134/S1070363208090041