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Proceedings Paper

Surface Organization of a Spontaneously Adsorbed Monolayer of Arachidic Acid on Silver
Author(s): N. E. Schlotter; T. Bright; D. L. Allara
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Paper Abstract

Grazing incidence infrared (GI-IR) spectra of spontaneously adsorbed monolayers of arachidic acid on ambient silver surfaces have been recorded. These spectra are very similar to previously obtained measurements on Langmuir - Blodgett (L-B) deposited films prepared from the corresponding carboxylate salts indicating great similarity between the L-B and spontaneously formed films. The acidic head group has reacted with the silver/silver oxide surface to form a carboxylate salt. Additionally, the hydrocarbon chains have assumed a planar zig-zag conformation. These chains are oriented approximately normal to the surface. The spectrum of arachidic acid, CH3(CH2 -) 18COOH, indicates an orthorhombic subcell packing arrangement. Studies with isotopically labeled n-alkanoic acids have been carried out to confirm some mode assignments.

Paper Details

Date Published: 20 December 1985
PDF: 2 pages
Proc. SPIE 0553, Fourier and Computerized Infrared Spectroscopy, (20 December 1985); doi: 10.1117/12.970932
Show Author Affiliations
N. E. Schlotter, Bell Communications Research (United States)
T. Bright, Bell Communications Research (United States)
D. L. Allara, Bell Communications Research (United States)

Published in SPIE Proceedings Vol. 0553:
Fourier and Computerized Infrared Spectroscopy
David G. Cameron; Jeannette G. Grasselli, Editor(s)

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