Accession Number : ADA186717

Title :   Monolayer Films Prepared by the Spontaneous Self-Assembly of Symmetrical and Unsymmetrical Dialkyl Sulfides from Solution Onto Gold Substrates: Structure, Properties, and Reactivity of Constituent Functional Groups.

Descriptive Note : Technical rept.,

Corporate Author : HARVARD UNIV CAMBRIDGE MASS DEPT OF CHEMISTRY

Personal Author(s) : Troughton, Ernest B ; Bain, Colin D ; Shitesides, George M ; Nuzzo, Ralph G ; Allara, David L

PDF Url : ADA186717

Report Date : Oct 1987

Pagination or Media Count : 88

Abstract : Exposure of evaporated gold films supported on silicon wafers to solutions of dialkyl sulfides (R(CH2)m-S-(CH2)n-R'; R and R'=CH3 or CO2H) or alkyl thiols (R(CH2)nSH, R=CO2H or CH3) in methanol or ethanol results in rapid formation of a monolayer of the organosulfer compound adsorbed onto the gold. The resulting films have been characterized using a number of techniques, including X-ray photoelectron spectroscopy (XPS), infrared spectroscopy (IRS), ellipsometry, and wetting. These self-assembled, supported organic monolayer films are systems that can be used to study problems in the physical-organic chemistry and materials science of organic surfaces, especially the relation between the molecular-level structure of the film constituents and the macroscopic properties of the assembled monolayers. Keywords: Thin film, Monolayer, Surface spectroscopy, electronic materials

Descriptors :   *THIOLS, *GOLD, ALKYL RADICALS, ELLIPSOMETERS, FILMS, INFRARED SPECTROSCOPY, CARBINOLS, ORGANIC MATERIALS, SURFACES, SILICON, WAFERS, ELECTRONIC EQUIPMENT, MATERIALS, ETHANOLS, SUBSTRATES, MATERIALS, FILMS, LAYERS, REACTIVITIES, LAYERS, ORGANIC MATERIALS, SPECTROSCOPY, SURFACES, WETTING, THIN FILMS, X RAY PHOTOELECTRON SPECTROSCOPY

Subject Categories : Inorganic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE