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Published August 1, 1970 | public
Journal Article

Nuclear Magnetic Resonance Spectroscopy. Kinetics of a 7,7-Dicyanonorcaradiene Valence Tautomerism

Abstract

The rate of inversion of 7,7-dicyano-2,5-bis(difluoromethyl)norcaradiene (10), presumably by way of its valence tautomer, 7,7-dicyano-2,5-bis(difluoromethyl)cycloheptatrien (11), was studied through the temperature dependence of the magnetic nonequivalence of the gem-fluoro groups. The activation energy E, was found to be 14.6 ± 0.4 kcal/mol and log A is 13.4 ± 0.3.

Additional Information

© 1970 American Chemical Society. Received February 4, 1970. The part of this research which was carried on at the California Institute of Technology was supported by the National Science Foundation. National Research Council of Canada Postdoctoral Fellow. California Institute of Technology. Central Research Department of E. I. du Pont de Nemours and co.

Additional details

Created:
August 19, 2023
Modified:
October 24, 2023