Chiral discrimination in liquids. Excess molar volumes of (1 - x)A+ + xA-, where A denotes limonene, fenchone, and .alpha.-methylbenzylamine

Thermodynamic properties of ethanol solution of chiral camphors and its derivatives

“…The enthalpies of mixing of enantiomers of 2,3-dihydroxylbutanedioic acid, threonine, and alanine were reported by Takagi et al [1]. Some investigators have studied the problem of chiral interaction [2][3][4][5] in recent years. Previous calorimetric work in our laboratory includes measurement of enthalpies of mixing for 34 binary liquid chiral systems [6][7][8][9][10].…”

Thermodynamic properties of chiral fenchones in some solutions at T=298.15K

“…The excess molar enthalpies, excess molar volumes and the enthalpies of vaporization for {(R + S)-fenchone + (R + S)-limonene} have been reported by Atik et al [17][18][19]. The mixing of (R + S)-enantiomers showed small enthalpy changes and evident molecular packing.…”

Enthalpy change on mixing a couple of S‐ and R‐enantiomers of some chiral compounds at 298.15 K

“…Some homochiral bulky molecular packing was more unfavorable than heterochiral packing in the liquid state. 5,7 There are two descriptions in terms of the difference in the sign of enthalpy changes observed upon the mixing of two enantiomers. One is the effect of molecular packing in the liquid state, that is, the change of molar volumes between the homochiral liquid and the heterochiral liquid on mixing.…”

“…Thereafter, the influences of stereo-specific interactions on cohesive energies and densities of the liquid state have been evaluated by others. [3][4][5][6][7] We have also been engaged in the study of chiral compounds. Our previous work includes the measurement of enthalpy change on mixing for binary liquid chiral systems in order to understand the chiral discrimination and structural properties of the liquids in the mixture.…”