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Studies in organic mass spectrometry. Part 9—mass spectra of 9,10-disubstituted 2,3,6,7-tetraalkoxy-9,10-dihydroanthracenes: A remarkable loss of radicals from even-electron ions
- Source :
- Organic Mass Spectrometry. 26:279-286
- Publication Year :
- 1991
- Publisher :
- Wiley, 1991.
-
Abstract
- The electron impact-induced fragmentations of 23 9,10-disubstituted 2,3,6,7-tetraalkoxy-9,10-dihydroanthracenes, including six stereoisomeric pairs, were studied. The loss of the 9-(or 10-)substituent constitutes the main fragmentation route. The resulting ions give rise to a remarkable violation of the so-called even-electron rule as they eject the second substituent at the 10-(or 9-)position as a radical. The latter aspect was particularly investigated with the aid of low-energy (nominal value 15 eV) and mass-analysed ion kinetic energy spectra
Details
- ISSN :
- 10969888 and 0030493X
- Volume :
- 26
- Database :
- OpenAIRE
- Journal :
- Organic Mass Spectrometry
- Accession number :
- edsair.doi...........1ba421ca92e2e8f9df9cb0b4b8745bf5
- Full Text :
- https://doi.org/10.1002/oms.1210260419