Published October 1, 1969 | public
Journal Article

Nuclear Magnetic Resonance Spectroscopy. Effects of Molecular Asymmetry on Carbon-13 Chemical Shifts

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Abstract

A nearby center of molecular asymmetry often induces magnetic nonequivalence of the protons of an isopropyl group (or of a methylene group), and this phenomenon has been the subject of many investigations. We report here the first observance of the effect of molecular asymmetry on the resonances of methyl carbons in isopropyl groups in compounds of the type (CH_3)_2-CH(CH_2)_nCHR_1R-2.

Additional Information

© 1969 American Chemical Society. Received June 18, 1969. Supported in part by the Public Health Service, Research Grant 11072-05-06 from the Division of General Medical Sciences, and the National Science Foundation. We are pleased to acknowledge the help and suggestions of Dr. Frank J. Weigert in the course of this work.

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August 19, 2023
Modified:
October 24, 2023