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Enthalpic changes on mixing two couples of S- and R-enantiomers which contained amino groups at 298.15 K

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Abstract

Enthalpies of mixing of R- and S-enantiomers of liquid chiral compounds such as 2-aminohexane, 2-aminoheptane, 2-aminooctane, 2-aminononane, 1-(4-chlorophenyl)-ethylamine, 1-(4-fluorophenyl)ethylamine, 2-amino-butane-1-ol have been measured over the whole range of mole fractions at 298.15 K. Mixing of heterochiral liquids observed, realized enthalpic destabilization over entire compositions.

The extreme values of enthalpies of mixing and the intermolecular interaction obtained by the molecular mechanics calculations showed a linear correlation, except the few compounds measured.

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Science and Technology, Kinki University, Higashi-osaka, Japan, 577-8502, Kowakae

    Kimura T., Khan M. A. & Kamiyama T.

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  1. Kimura T.
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  2. Khan M. A.
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  3. Kamiyama T.
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Correspondence to Kimura T..

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Kimura, T., Khan, M.A. & Kamiyama, T. Enthalpic changes on mixing two couples of S- and R-enantiomers which contained amino groups at 298.15 K. J Therm Anal Calorim 85, 575–580 (2006). https://doi.org/10.1007/s10973-006-7657-4

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  • DOI: https://doi.org/10.1007/s10973-006-7657-4

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