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Polarity,polarizability, and structure of esters. 6. Conformations of para-substituted phenyl chloroformates in solutions
Authors:A A Bredikhin  V A Kirillovich  L V Frolova  A N Vereshchagin
Institution:(1) A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan' Branch, Academy of Sciences of the USSR, USSR
Abstract:The ellipsoid of polarizability of the chloroformate fragment ClC(O)O has principle semiaxes b1=3.64, b2=5.34, b3=3.81 Å3; the angle between b1 and the C=0 bond is 24.5°. Aromatic chloroformates in solutions exist in conformations with cisoid position of the C=O and O-R bonds and the phenoxyl fragment in aromatic chloroformates deviates from the plane of the molecule.Deceased.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2704–2708, December, 1989.The authors wish to thank S. G. Vul'fson for assistance in measuring the depolarization of Rayleigh light scattering.
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