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Proceedings Paper

FTIR studies of Langmuir-Blodgett films of arachidic acid
Author(s): Y. Fujimoto; A. Higashi; Yukihiro Ozaki; Takashi Kato; N. Matsumoto; Keiji Iriyama
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Paper Abstract

FT-IR transmission and reflection-absorption (RA) spectra were measured for Langmuir- Blodgett (LB) films of arachidic acid and the following conclusion could be reached from the measurements: (1) The structure of arachidic acid monolayer films deposited on CaF2 plates changed with the surface pressure. (2) The structure of the monolayer films deposited on Au-evaporated glass slides did not show a marked dependency on the surface pressure, but the fraction of the trans configuration for the Ca-Cb-CequalsO group increased significantly with the pressure. (3) The carboxylic acid groups probably form a hydrogen bonding between the neighboring molecules in the monolayer films deposited on both CaF2 plates and Au- evaporated glass slides. (4) Subcell packing of hydrocarbon chains in arachidic acid LB films on CaF2 plates changes from hexagonal to orthorhombic upon going from the first monolayer to the second monolayer.

Paper Details

Date Published: 17 June 1993
PDF: 5 pages
Proc. SPIE 1921, Laser Spectroscopy of Biomolecules, (17 June 1993); doi: 10.1117/12.146132
Show Author Affiliations
Y. Fujimoto, Kwansei Gakuin Univ. (Japan)
A. Higashi, Kwansei Gakuin Univ. (Japan)
Yukihiro Ozaki, Kwansei Gakuin Univ. (Japan)
Takashi Kato, Utsunomiya Univ. (Japan)
N. Matsumoto, Utsunomiya Univ. (Japan)
Keiji Iriyama, Jikei Univ. School of Medicine (Japan)

Published in SPIE Proceedings Vol. 1921:
Laser Spectroscopy of Biomolecules

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