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Published December 1, 1968 | public
Journal Article

Nuclear Magnetic Resonance Spectroscopy. Conformational Equilibria and Equilibration of 5,5-Difluoro-cis-hydrindan and 9-Methyl-5,5- difluoro-cis-hydrindan

Abstract

The rate of ring inversion and conformational equilibration of 5,5-difluoro-cis-hydrindahn as been determined from the temperature dependence of its fluorine magnetic resonance spectrum. The activation energy for ring inversion was found to be 6.9 ± 0.2 kcal/mol. Introduction of an angular methyl group at the 9 position resulted in an increase in the activation energy to 8.1 ± 0.3 kcal/mol.

Additional Information

© 1968 American Chemical Society. Received April 24, 1968. Supported in part by the National Science Foundation. On leave of absence from the Department of Organic Chemistry, The University of Sydney, Sydney Australia.

Additional details

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