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Issue 12, 2001
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Remarkable changes in conformations of n-alkanes with their carbon numbers and aromatic solvents

Kunio Nikki,*a  Hideki Inakura,a  Wu-Le,a  Noboru Suzukia  and  Tadashi Endob 
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* Corresponding authors

a Department of Applied Physics and Chemistry, The University of Electro-Communications, Chofugaoka, Chofu-shi, Japan

b Department of Chemistry, College of Science and Engineering, Aoyama Gakuin University, Chitosedai, Setagaya-ku, Japan

Abstract

Based on magnetic anisotropy in NMR, it is found that preferred conformations of n-alkanes in aromatic solvents (C6D6 and 1-chloronaphthalene) are dependent both on their carbon numbers and on the solvents used. A short-chain alkane, hexane, tends to adopt extended conformations in both C6D6 and 1-chloronaphthalene. In contrast, a long-chain alkane, dodecane, in 1-chloronaphthalene prefers to take open conformations, though in C6D6 taking U-shaped conformations. A ‘conformational change model’ is proposed on the basis of the NMR results.

Graphical abstract: Remarkable changes in conformations of n-alkanes with their carbon numbers and aromatic solvents

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Publication details

The article was received on 16 Oct 2000, accepted on 30 Oct 2001 and first published on 19 Nov 2001


Article type: Paper
DOI: 10.1039/B008331N
Citation: J. Chem. Soc., Perkin Trans. 2, 2001,0, 2370-2373
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    Remarkable changes in conformations of n-alkanes with their carbon numbers and aromatic solvents

    K. Nikki, H. Inakura, Wu-Le, N. Suzuki and T. Endo, J. Chem. Soc., Perkin Trans. 2, 2001, 0, 2370
    DOI: 10.1039/B008331N

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