Heat capacity and standard thermodynamic functions of three ketohexoses in monosaccharides including rare sugars: D-fructose, D-psicose, and D-tagatose. (April 2019)

• Record Type: Journal Article
• Authors: Yamamura, Yasuhisa; Iwagaki, Sakiko; Hishida, Mafumi; Nagatomo, Shigenori; Fukada, Kazuhiro; Saito, Kazuya
• Is Part Of: Journal of chemical thermodynamics. Volume 131(2019)
• Page Start: 420
• Page End: 430
• Publication Date: 2019-04
• Subjects: Thermodynamics -- Periodicals; Thermochemistry -- Periodicals; Thermodynamique -- Périodiques; Thermochimie -- Périodiques; Thermochemistry; Thermodynamics; Periodicals; 541.369
• DOI: 10.1016/j.jct.2018.11.014
• Languages: English
• ISSNs: 0021-9614

Abstract

Highlights: Precise heat capacities of three ketohexoses in monosaccharides below room temperature by adiabatic calorimetry. Their standard thermodynamic quantities including calorimetric entropies. Detailed comparison of heat capacity of fructose among available data. Difference in temperature dependence of heat capacity clarified through spectral analyses of vibrational density of states. Abstract: Heat capacities of three ketohexoses in monosaccharides, D -fructose, D -psicose, andD -tagatose, were measured for crystalline states in the temperature range from 13.8 K to 330 K by adiabatic calorimetry. Their standard thermodynamic functions were estimated from the measured molar heat capacities. A spectral analysis using Kieffer's model was applied to the heat capacities to rationalize the relation among them in terms of intra- and intermolecular hydrogen bond in crystal.