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

Reich, Hans J. and Ciganek, Engelbert and Roberts, John D. (1970) Nuclear Magnetic Resonance Spectroscopy. Kinetics of a 7,7-Dicyanonorcaradiene Valence Tautomerism. Journal of the American Chemical Society, 92 (17). pp. 5166-5169. ISSN 0002-7863.

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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.

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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.
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National Research Council of CanadaUNSPECIFIED
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Caltech Gates and Crellin Laboratories of Chemistry3974
Central Research Department, E. I. du Pont de Nemours and Company1661
Issue or Number:17
Record Number:CaltechAUTHORS:20151012-133441299
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Official Citation:Nuclear magnetic resonance spectroscopy. Kinetics of a 7,7-dicyanonorcaradiene valence tautomerism Hans J. Reich, Engelbert Ciganek, and John D. Roberts Journal of the American Chemical Society 1970 92 (17), 5166-5169 DOI: 10.1021/ja00720a028
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:61002
Deposited By: Ruth Sustaita
Deposited On:13 Oct 2015 19:38
Last Modified:03 Oct 2019 09:03

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