Dipole moments and structure of ortho-diphenyl(diethyl)phosphinoyl-substituted benzyl alcohols, phenols, and their derivatives
摘要:
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 o-[(diphenylphosphinoyl)methyl]phenol contain an intramolecular hydrogen bond between the hydroxyl hydrogen atom and phosphinoyl oxygen atom.
Dipole moments and structure of ortho-diphenyl(diethyl)phosphinoyl-substituted benzyl alcohols, phenols, and their derivatives
作者:E. A. Ishmaeva、A. A. Gazizova、Ya. A. Vereshcjhagina、N. A. Bondarenko
DOI:10.1134/s1070363208090041
日期:2008.9
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 o-[(diphenylphosphinoyl)methyl]phenol contain an intramolecular hydrogen bond between the hydroxyl hydrogen atom and phosphinoyl oxygen atom.