Substituted benzeneseleninic acids of the type XC6H4SeO2H (X = m-Cl, p-Cl, m-Br, p-Br, p-Me, m-NO2, p-NO2) have been investigated by mass spectrometry. The fragmentation modes and the fragment ions are discussed and compared with those obtained from the mass spectrum of m-nitro-phenyl selenocyanate, O2NC6H4SeCN. Generally, as regards the acids, besides very weak peaks due to the molecular ions, a number of peaks at higher mass numbers and of greater intensity is observed; these peaks are in multiplets typical of the presence of two selenium atoms, and they correspond to the disubstituted diphenyl diselenides of the type XC6H4SeSeC6H4X. m-Nitrophenyl selenocyanate shows an intense molecular ion peak and the relative fragmentation, while the peak due to the diselenide is of very low intensity.

mass spectral investigations on selenium compounds. * / Benedetti, A.; Preti, C.; Tassi, Lorenzo; Tosi, G.. - In: AUSTRALIAN JOURNAL OF CHEMISTRY. - ISSN 0004-9425. - STAMPA. - 35:(1982), pp. 1365-1372.

mass spectral investigations on selenium compounds. *

TASSI, Lorenzo;
1982

Abstract

Substituted benzeneseleninic acids of the type XC6H4SeO2H (X = m-Cl, p-Cl, m-Br, p-Br, p-Me, m-NO2, p-NO2) have been investigated by mass spectrometry. The fragmentation modes and the fragment ions are discussed and compared with those obtained from the mass spectrum of m-nitro-phenyl selenocyanate, O2NC6H4SeCN. Generally, as regards the acids, besides very weak peaks due to the molecular ions, a number of peaks at higher mass numbers and of greater intensity is observed; these peaks are in multiplets typical of the presence of two selenium atoms, and they correspond to the disubstituted diphenyl diselenides of the type XC6H4SeSeC6H4X. m-Nitrophenyl selenocyanate shows an intense molecular ion peak and the relative fragmentation, while the peak due to the diselenide is of very low intensity.
1982
35
1365
1372
mass spectral investigations on selenium compounds. * / Benedetti, A.; Preti, C.; Tassi, Lorenzo; Tosi, G.. - In: AUSTRALIAN JOURNAL OF CHEMISTRY. - ISSN 0004-9425. - STAMPA. - 35:(1982), pp. 1365-1372.
Benedetti, A.; Preti, C.; Tassi, Lorenzo; Tosi, G.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/459728
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