Low-temperature heat capacity of ?-glycine and a phase transition at 252 K

Autor:	T. N. Drebushchak, V. A. Drebushchak, Yu. A. Kovalevskaya, I. E. Paukov, Elena V. Boldyreva
Rok vydání:	2005
Předmět:	symbols.namesake Phase transition Differential scanning calorimetry Chemistry symbols Thermodynamics Physical and Theoretical Chemistry Atmospheric temperature range Condensed Matter Physics Heat capacity Debye Gibbs free energy
Zdroj:	Journal of Thermal Analysis and Calorimetry. 79:65-70
ISSN:	1572-8943 1388-6150
DOI:	10.1007/s10973-004-0563-8
Popis:	Low-temperature heat capacity of unstable β-glycine was measured in a temperature range 5.5 to 295 K, and thermodynamic functions were calculated. At very low temperatures, heat capacity fits a sum of cubic (Debye) and linear terms: Cp=aT+bT 3. The linear contribution increases with temperature and disappears at the second-order phase transition near 252 K which was observed for the first time.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5444448a05695519529f6e2ed4242399 https://doi.org/10.1007/s10973-004-0563-8 Zobrazit plný text záznamu Plný text ve formátu PDF