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

Kroschwitz, Jacqueline I. and Winokur, M. and Reich, Hans J. and Roberts, John D. (1969) Nuclear Magnetic Resonance Spectroscopy. Effects of Molecular Asymmetry on Carbon-13 Chemical Shifts. Journal of the American Chemical Society, 91 (21). pp. 5927-5928. ISSN 0002-7863. http://resolver.caltech.edu/CaltechAUTHORS:20151013-145410768

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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.


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http://dx.doi.org/10.1021/ja01049a066DOIArticle
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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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U.S. Public Health Service (USPHS)11072-05-06
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Caltech Gates and Crellin Laboratories of Chemistry3872
Record Number:CaltechAUTHORS:20151013-145410768
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20151013-145410768
Official Citation:Nuclear magnetic resonance spectroscopy. Effects of molecular asymmetry on carbon-13 chemical shifts Jacqueline I. Kroschwitz, M. Winokur, Hans J. Reich, and John D. Roberts Journal of the American Chemical Society 1969 91 (21), 5927-5928 DOI: 10.1021/ja01049a066
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:61068
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:14 Oct 2015 19:20
Last Modified:14 Oct 2015 19:20

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