ISSN:
1573-9171
Keywords:
α-diphenylphosphoryl-α-acetylacetonitriles
;
keto-enol tautomerism
;
Z,E isomers
;
X-ray structural analysis
;
hydrogen bond
;
electron density distribution
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract It has been established by X-ray structural analysis that pure α-diphenylphosphoryl-α-acetylacetonitrile exists in the enol form (aZ isomer). In crystals, a strong intramolecular P=O...H...O hydrogen bond is formed; the O...O distance is 2.551 Å. It has been demonstrated that the H atom is characterized by a high lability along the hydrogen bond, which exhibits a covalent component in the H...O region.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00714430
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