標題: The trans/gauche conformational equilibrium and associated thermodynamic parameters of liquid 1,2-dibromoethane as studied by infrared electroabsorption spectroscopy
作者: Lee, I-Chun
Hamaguchi, Hiro-o
Shigeto, Shinsuke
應用化學系
應用化學系分子科學碩博班
Department of Applied Chemistry
Institute of Molecular science
公開日期: 4-Dec-2008
摘要: Infrared electroabsorption spectroscopy is used to study the trans/gauche conformational equilibrium and associated thermodynamic parameters of the two conformers of liquid 1,2-dibromoethane at room temperature. Electric-field modulation induces an increase in the population of the gauche conformer that has the permanent dipole moment and a decrease in that of the trans conformer that has a center of inversion symmetry and hence no dipole moment. The Gibbs free energy difference DG and the entropy difference Delta S between the gauche and trans conformers are obtained as 4.5 kJ mol(-1) and -2.7 J K(-1) mol(-1), respectively, using the reported enthalpy difference. (C) 2008 Elsevier B. V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.cplett.2008.10.035
http://hdl.handle.net/11536/8047
ISSN: 0009-2614
DOI: 10.1016/j.cplett.2008.10.035
期刊: CHEMICAL PHYSICS LETTERS
Volume: 466
Issue: 4-6
起始頁: 144
結束頁: 147
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