&lt;title&gt;FTIR studies of photochemical reactions of carbonyl sulfide with ozone&lt;/title&gt;

Jaeger, K.; Weller, Rolf; Schrems, Otto

doi:10.1117/12.56319

Cited by 3 publications

(1 citation statement)

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“…Oxidation Mechanism. There have been few investigations of the reaction of O 3 with organosulfur compounds. − The first notable study involved the infrared spectroscopic analysis of the reaction of ground-state oxygen atoms, generated by visible photolysis of O 3 , with dimethyl sulfide and CH 3 SH in solid argon matrixes . Oxygen atoms were shown to react in a stepwise mechanism with dimethyl sulfide in argon matrixes to produce dimethyl sulfoxide and dimethyl sulfone with no apparent activation barrier even at 10 K .…”

Section: Resultsmentioning

confidence: 99%

Air Stability of Alkanethiol Self-Assembled Monolayers on Silver and Gold Surfaces

1998

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Surface Raman spectroscopy, electrochemistry, and X-ray photoelectron spectroscopy have been used to study the effects of air exposure on the stability of self-assembled monolayers (SAMs) formed from alkanethiols on mechanically polished, smooth Ag and Au surfaces. Raman spectra exhibit oxidized sulfur modes after only hours of air exposure. X-ray photoelectron spectroscopy of the S 2p region provides additional evidence for sulfur oxidation. Cyclic voltammetry of Ru(NH3)6 3+ indicates that oxidized alkanethiol SAMs retain blocking characteristics toward electron transfer, even after exposure of the oxidized SAM-surface to a solubilizing solvent. Control experiments suggest ozone as the primary oxidant in ambient laboratory air which causes rapid oxidation of the thiolate moiety. These results have important ramifications for the general use of SAMs in many proposed applications.

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