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Zeitschrift für Naturforschung A

A Journal of Physical Sciences

Editor-in-Chief: Holthaus, Martin

Editorial Board: Fetecau, Corina / Kiefer, Claus


IMPACT FACTOR 2017: 1.414

CiteScore 2018: 1.15

SCImago Journal Rank (SJR) 2018: 0.370
Source Normalized Impact per Paper (SNIP) 2018: 0.431

Online
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1865-7109
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Volume 36, Issue 12

Issues

Carbon-13 NMR and Raman Scattering Studies of Potassium Propoxybenzoate and Potassium Butoxybenzoate. Conformational Change Due to Micellization

Hirofumi Okabayashi
  • Department of Industrial Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466.
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Tadayoshi Yoshida
  • Department of Industrial Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466.
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Yukimasa Terada / Teruki Ikeda / Kazuhiro Matsushita
  • NMR Application Laboratory, Scientific Instrument Division, JEOL, Ltd., Akishima, Tokyo 196, Japan
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  • De Gruyter OnlineGoogle Scholar
Published Online: 2014-06-02 | DOI: https://doi.org/10.1515/zna-1981-1215

Abstract

Carbon-13 NMR chemical shifts and carbon-13 spin-lattice relaxation times of potassium propoxybenzoate and potassium butoxybenzoate in deuterium oxide solution were measured at various concentrations.

For the alkoxy group, the earbon-13 resonance peak of the O-CH2 segment is shifted rapidly up-field upon micellization, while the resonance peaks of other methylene groups are shifted downfield. This observation is ascribed to the conformational change of the alkoxy group on micellization.

In the monomolecular solution of potassium butoxybenzoate, the restricted state of the O-CH2 bond was estimated by carbon-13 spin-lattice relaxation time measurement. It was also found that micellization brings about a further restricted internal rotation about the O-CH2 bond.

About the article

Received: 1981-10-12

Published Online: 2014-06-02

Published in Print: 1981-12-01


Citation Information: Zeitschrift für Naturforschung A, Volume 36, Issue 12, Pages 1352–1356, ISSN (Online) 1865-7109, ISSN (Print) 0932-0784, DOI: https://doi.org/10.1515/zna-1981-1215.

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© 1946 – 2014: Verlag der Zeitschrift für Naturforschung. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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