Zum Rotations-Zeeman-Effekt in Molekülen mit annähernd frei drehbaren Methylgruppen/ Rotational Zeeman Effect of Molecules with Low Methyl Barriers. I. Nitromethane-Reference-Cited by-同舟云学术

Zum Rotations-Zeeman-Effekt in Molekülen mit annähernd frei drehbaren Methylgruppen/ Rotational Zeeman Effect of Molecules with Low Methyl Barriers. I. Nitromethane

Published:1973-05-01 Issue:5 Volume:28 Page:709-713
ISSN:1865-7109
Container-title:Zeitschrift für Naturforschung A
language:en
Short-container-title:

Author:

Engelbrecht L.¹,Sutter D.¹,Dreizier H.¹

Affiliation:

1. Abt. Chemische Physik im Institut für Physikalische Chemie, Universität Kiel

Abstract

The rotational Zeeman effect of CH3 -NO2, a molecule with a very low barrier to internal rotation has been studied at field strengths up to 25 kG. From the Zeeman splittings of rotational transitions in excited torsional states the “g-value of the methyl-group” was determined to be ga= +0.347 ± 0.002. This comparatively high value indicates that in nitromethane valence electrons are shifted from the C - H-bond region towards the NO2-group, an explanation which is backed by the results of CNDO/2 and INDO-calculations.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy,Mathematical Physics

Link

https://www.degruyter.com/document/doi/10.1515/zna-1973-0530/pdf

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