Photooxidation of thiols in self-assembled monolayers on gold

Journal Article · Wed Apr 21 04:00:00 EDT 1993 · Journal of the American Chemical Society; (United States)

DOI:https://doi.org/10.1021/ja00061a048· OSTI ID:6043355

Huang, Jingyu; Hemminger, J C ^[1]

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1. Univ. of California, Irvine (United States)

The authors report here on the UV photooxidation of self-assembled monolayers (SAMs) of alkanethiols in air. Efficient photooxidation to form the alkanesulfonate (RSO[sub 3][sup [minus]]) is observed for a variety of straight chain alkanethiols as well as thiophenols. As the result of such studies, details of the structure and chemical properties of SAMs have been revealed. Methods for the controlled chemical modification of SAMs are of great interest, particularly if there is potential for spatial resolution of the chemical modification, as would be the case for an optically induced modification. In previous work the authors have shown that laser-induced desorption coupled with Fourier transform mass spectrometry (LID-FTMS) is a sensitive molecular probe of alkanethiol SAMs. The LID-FTMS technique has allowed them to directly determine the molecular identity of the photooxidation product in these experiments. 18 refs., 2 figs.

• OSTI ID: 6043355
• Journal Information: Journal of the American Chemical Society; (United States), Journal Name: Journal of the American Chemical Society; (United States) Vol. 115:8; ISSN JACSAT; ISSN 0002-7863
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400500* -- Photochemistry
CHEMICAL REACTIONS
DECOMPOSITION
ELECTROMAGNETIC RADIATION
ELEMENTS
FILMS
GOLD
LASER RADIATION
METALS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDATION
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADIATIONS
SPECTROSCOPY
SULFONATES
THIOLS
THIOPHENOLS
TRANSITION ELEMENTS
ULTRAVIOLET RADIATION