Thermal study of L-alanine, L-threonine, and taurine crystals related to hydrogen bonding

被引：12
|
作者：
Lima, R. J. C. [1 ]
Santos-Junior, E. C. [1 ]
Moreno, A. J. D. [1 ]
Facanha-Filho, P. F. [1 ]
Freire, P. T. C. [2 ]
Yoshida, M. I. [3 ]
机构：
[1] Univ Fed Maranhao, Ctr Ciencias Sociais Saude & Tecnol, BR-65900410 Imperatriz, MA, Brazil
[2] Univ Fed Ceara, Dept Fis, BR-60455760 Fortaleza, Ceara, Brazil
[3] Univ Fed Minas Gerais, Dept Quim, BR-31270901 Belo Horizonte, MG, Brazil
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2013年 / 111卷 / 01期
关键词：
L-Alanine; L-Threonine; Taurine; Thermal analysis; Dilatometry; POLAR ORGANIC MATERIALS; SHAPE; ACID; NH3;
D O I：
10.1007/s10973-012-2443-y
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In this study L-alanine, L-threonine, and taurine crystals were characterized through dilatometric technique and thermogravimetric and differential thermal analysis. The dilatometric analysis shows that the thermal expansion of the crystals is correlated with the strengths of local hydrogen bonding in the amino acid structures at room temperature. Thermogravimetric analysis and differential thermal analysis of the L-alanine, taurine, and L-threonine crystals have been performed at high temperatures. No clear correlation between the hydrogen bonding strengths and endothermic peak positions was observed.
引用
收藏
页码：627 / 631
页数：5
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