‘Doubly charged ion’ mass spectra of some simple aromatic compounds
Article first published online: 7 APR 2005
Copyright © 1971 John Wiley & Sons, Ltd.
Organic Mass Spectrometry
Volume 5, Issue 3, pages 303–310, March 1971
How to Cite
Beynon, J. H., Mathias, A. and Williams, A. E. (1971), ‘Doubly charged ion’ mass spectra of some simple aromatic compounds. Org. Mass Spectrom., 5: 303–310. doi: 10.1002/oms.1210050308
- Issue published online: 7 APR 2005
- Article first published online: 7 APR 2005
- Manuscript Accepted: 30 NOV 1970
- Manuscript Received: 29 SEP 1970
Benzene, toluene, phenol, diphenyl ether and the three isomeric dihydroxy-benzenes have been examined using an MS-9 mass spectrometer under conditions that allowed only ions having twice the normal amount of kinetic energy to be detected. These ions are, in fact, singly charged ions arising from charge exchange reactions of doubly charged ions of the same mass, occuring in the first field free region of the Spectrometer. It is argued that the spectra obtained yield essentially the distribution of doubly charged ions in the source region. These ‘doubly charged ion’ mass spectra are compared with the normal singly charged ion spectra of the compounds and the implications of the significant differences that are found, are discussed.