Heat capacity and thermodynamic properties of (1R,2S,5R)-2-i-propyI-5-methylcyclohexyl diazoacetate

Citation
Yy. Di et al., Heat capacity and thermodynamic properties of (1R,2S,5R)-2-i-propyI-5-methylcyclohexyl diazoacetate, THERMOC ACT, 362(1-2), 2000, pp. 7-12
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
THERMOCHIMICA ACTA
ISSN journal
0040-6031 → ACNP
Volume
362
Issue
1-2
Year of publication
2000
Pages
7 - 12
Database
ISI
SICI code
0040-6031(20001113)362:1-2<7:HCATPO>2.0.ZU;2-9
Abstract
Heat capacities of (1R,2S,5R)-2-i-propyl-5-methylcyclohexyl diazoacetate ha ve been measured with a small sample adiabatic calorimeter over the tempera ture range from 78 to 344 K. The melting point, molar enthalpy and entropy of fusion as well as the chemical purity of this compound were determined t o be 320.419 +/- 0.017 K, 17.203 +/- 0.005 kJ mol(-1),53.689 +/- 0.013JK(-1 ) mol(-1) and 99.61 mol%, respectively, on the basis of the heat-capacity m easurements. The extrapolated melting temperature for the absolutely pure c ompound obtained from fractional melting experiments was 320.602 K. (C) 200 0 Elsevier Science B.V. All rights reserved.