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Generation of 1,3-Dithia-, 1-Selena-3-thia-, and 1,3-Diselena-2-tellurole by Neutralization-Reionization Mass Spectrometry☆

✍ Scribed by Detlef Schröder; Helmut Schwarz; Björn Löbrecht; Wolfram Koch; Satoshi Ogawa

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 260 KB
Volume: 1998
Category: Article
ISSN: 1434-1948
DOI: 10.1002/(sici)1099-0682(199807)1998:7<983::aid-ejic983>3.0.co;2-a

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✦ Synopsis

2,2-Dichloro-1,3-dichalcogena-2-telluroles of sulfur and phase. The most abundant fragmentation channel at the neutral and cationic stages is due to loss of atomic tellurium selenium, C 6 H 4 [XTe(Cl) 2 Y] with X, Y = S, Se, serve as precursors to generate the cation radicals of 1,3-to afford the corresponding benzo-1,2-dichalcogenacyclobutenes. For the latter, partial isomerization to the dichalcogena-2-telluroles C 6 H 4 [XTeY] +• as well as the corresponding neutral counterparts by means of related dichalcogena-ortho-quinones is indicated by the mass-spectrometric fragmentation pattern. neutralization-reionization mass spectrometry. These neutral 2-telluroles are intrinsically stable for at least 1 µs in the gas

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