✦ LIBER ✦

Oxidation reactions of dibenzothiophene subjected to negative chemical ionization with oxygen

✍ Scribed by Georg Drabner; Herbert Budzikiewicz

Book ID: 103995657
Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 590 KB
Volume: 4
Category: Article
ISSN: 1044-0305
DOI: 10.1016/1044-0305(93)80021-p

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✦ Synopsis

Dibenzothiophene (1) suffers surface-catalyzed oxidation under CI(O2) conditions. While in the positive mode M(+) is the only major ion and those of the oxidation products are of minor importance in the negative mode, essentially only ions stemming from oxidized species can be seen, the sulfone ion M+O2 being the most important one. The ion m/z 184 previously attributed to M(-) is actually the anion of 2-sulfobenzoic acid cyclic anhydride. Structures for the various oxidation products are proposed and the mechanisms leading to their formation are discussed.

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