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Nuclear Magnetic Resonance Spectroscopy. Carbon-13 Spectra of n-Alkyl Nickel(II) Aminotroponiminates

Doddrell, David and Roberts, John D. (1970) Nuclear Magnetic Resonance Spectroscopy. Carbon-13 Spectra of n-Alkyl Nickel(II) Aminotroponiminates. Journal of the American Chemical Society, 92 (17). pp. 5255-5256. ISSN 0002-7863. doi:10.1021/ja00720a063.

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In a previous communication from these laboratories we reported the ^(13)C nmr spectrum of nickel(II) N,N'-di(p-tolyl)aminotroponiminate and proposed that, at least qualitatively, the ^(13)C isotropic shifts were consistent with the propagation of unpaired spin density by way of both the π and σ electrons of the ligand. This analysis assumed that the π contribution to the ^(13)C hyperfine coupling constant, ɑ^c_i, could be approximated by the Karplus-Fraenkel equation (eq 1), where S^c is the proportionality factor for the polarization of the 1s electrons and the Q's are the proportionality factors for the 2s electrons.

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Additional Information:© 1970 American Chemical Society. Received June 11, 1970. Supported by the National Science Foundation, and by the Public Health Service, Grant No. 11072, from the Division of General Medical Services. We are greatly indebted to Dr. R. E. Benson of the Central Research Department of E. I. du Pont de Nemours and Company for samples of the ligands and complexes.
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U.S. Public Health Service (USPHS)GM-11072
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Caltech Gates and Crellin Laboratories of Chemistry4072
Issue or Number:17
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Official Citation:Nuclear magnetic resonance spectroscopy. Carbon-13 spectra of n-alkyl nickel(II) aminotroponiminates David Doddrell and John D. Roberts Journal of the American Chemical Society 1970 92 (17), 5255-5256 DOI: 10.1021/ja00720a063
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:61001
Deposited By: Ruth Sustaita
Deposited On:13 Oct 2015 19:33
Last Modified:10 Nov 2021 22:42

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