Mass Spectral Study of Some Phenyl-mono and Dinitropyridyl Sulfide, Ether, Amine and Sulfone Derivatives
✍ Scribed by Fatima El-Zahara M. El-Hegazy; Mohamed E. Mahmoud; Esmat F. Saad; Ezzat A. Hamed
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 112 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0951-4198
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✦ Synopsis
The electron impact ionization of some mono-and dinitropyridylphenylsulfiede, ether, amine and sulfone derivatives were studied at 70 eV energy. All the 8 compounds studied underwent ring closure during the formation of a carbazole radical cation as a general feature in their mass spectra. The basic differences in the mass spectral behaviour are mainly attributed to the position of the nitro group in the pyridyl ring and the fragmentation pathway is directed by the sulfur, oxygen or nitrogen moiety. The base peak in the mass spectra is determined by such differences.