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Inclusion complexation of sodium alkyl sulfates withβ-cyclodextrin. A1H NMR study

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Abstract

The association of anionic surfactants,viz., sodium alkyl sulfates, C n H2n+1OSO3Na (n=5, 6, 7, 8, 9, 10, 12), withβ-cyclodextrin has been investigated by means of NMR spectroscopy. The measurements of chemical shift changes of certain protons of both host and guest molecules indicated 1:1 inclusion complex formation. The association constants (K a) and standard free energy changes (−ΔG 0) for the inclusion complexation reaction vary as a function of the hydrocarbon chain length of the surfactants.

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Authors and Affiliations

  1. National Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, 730000, Lanzhou, People's Republic of China

    Qing-Xiang Guo, Zi-Zhong Li, Tan Ren, Xiao-Qing Zhu & You-Cheng Liu

  2. Department of Modern Chemistry, University of Science and Technology of China, 230026, Hefei, People's Republic of China

    Qing-Xiang Guo

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  1. Qing-Xiang Guo
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  2. Zi-Zhong Li
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  3. Tan Ren
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  4. Xiao-Qing Zhu
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  5. You-Cheng Liu
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Guo, QX., Li, ZZ., Ren, T. et al. Inclusion complexation of sodium alkyl sulfates withβ-cyclodextrin. A1H NMR study. J Incl Phenom Macrocycl Chem 17, 149–156 (1994). https://doi.org/10.1007/BF00711855

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  • DOI: https://doi.org/10.1007/BF00711855

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