Chirality-dependent sublimation of-(trifluoromethyl)-lactic acid: Relative vapor pressures of racemic, eutectic, and enantiomerically pure forms, and vibrational …

…, VA Soloshonok, L Schrader, M Yasumoto…

Index: Albrecht, Merwe; Soloshonok, Vadim A.; Schrader, Lena; Yasumoto, Manabu; Suhm, Martin A. Journal of Fluorine Chemistry, 2010 , vol. 131, # 4 p. 495 - 504

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Citation Number: 28

Abstract

A mass-spectrometric determination of the sublimation pressure diagram of α- (trifluoromethyl)-lactic acid as a function of its enantiomeric composition at 293K shows that the racemic crystals have a 38±15% higher volatility than the enantiomerically pure crystals and the sublimation eutectic has a 55±10% higher vapor pressure. These data indicate a possibility for thermodynamically controlled enantiomeric enrichment of the residual ...