Calorimetric and theoretical studies on the system of {(R)-(+)-limonene+(S)-(-)-limonene} |
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| Authors: | M Fujisawa S Kido T Kimura |
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| Institution: | (1) Department of Biotechnological Science, Kinki University, 930 Nishimitani, Kinokawa-City, Wakayama 649-6493, Japan;(2) Department of Chemistry, Kinki University, Kowakae, Higashi-osaka 577-8502, Japan |
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| Abstract: | In order to reveal the origin of chiral discrimination, excess molar heat capacities (CP
E) of ((R)-(+)-limonene+(S)-(−)-limonene) were determined by using a differential scanning calorimeter at temperatures between T=293.15 and 303.15 K. All CP
E curves show S-shape. It was inferred that randomness appears in the (S)-(-)-limonene-rich region, and that non-randomness
appears in the (R)-(+)-limonene-rich region. To clarify the differences in homochiral interactions and heterochiral interactions, molecular
orbital calculations were carried out. |
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| Keywords: | ab initio MO chiral recognition excess molar heat capacities calorimetric and theoretical studies on the system of {(R)-(+)-limonene+(S)-(− )-limonene& #x007D limonene |
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