Characterization of the melting-crystallization transition of alcohol monolayers at the air/water interface by polarization modulation infrared reflection absorption spectroscopy

被引:12
作者
Alonso, C
Blaudez, D
Desbat, B
Artzner, F
Berge, B
Renault, A
机构
[1] Univ Grenoble 1, Spectrometrie Phys Lab, UMR 5588, F-38402 St Martin Dheres, France
[2] Univ Bordeaux 1, Ctr Phys Mol Opt & Hertzienne, URA 283, F-33405 Talence, France
[3] Univ Bordeaux 1, Spect Mol & Cristalline Lab, URA 124, F-33405 Talence, France
[4] Universite Paris Sud, Phys Solides Lab, URA 2, F-91405 Orsay, France
关键词
D O I
10.1016/S0009-2614(97)01438-3
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Monolayers of 1- and 2-alcohols of varying lengths have been studied at the water surface using polarization modulation infrared reflection absorption spectroscopy, Al the melting of the monolayer, we observe for all compounds a sudden increase of the conformational defects. In the liquid phase the alkyl chains contain gauche defects whereas they are all-trans in the solid phase, In addition, the chains are vertical or tilted by a few degrees with respect to the normal to the surface and the anchorage of molecules at the water surface is ensured by hydrogen bonding. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:446 / 451
页数:6
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