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Published December 1, 1968 | public
Journal Article

Conformational Equilibria and Equilibration of Tetramethylhexahydrotetrazine. Slow Nitrogen Inversion. N-Methyl Groups with a Preference for Axial Positioning

Abstract

The ambient-temperature pmr spectrum of N,N',-N",N"'-tetramethylhexahydrotetrazine2 (1) at 60 MHz shows two sharp peaks of relative intensity 1:3, as would be expected for rapid conformational inversion. However, at -87°, the methylene resonance appears as an AB quartet while there is a 1:1 doublet for the temperature nmr spectrum of 1 to which we call attention here are independent of the choice between 5 and 6.

Additional Information

© 1968 American Chemical Society. Received May 6, 1968. Supported by the National Science Foundation. Harkness Fellow of the Commonwealth Fund of New York, 1966-1968.

Additional details

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