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Substituent effects in mass spectrometry—II. The effect of substituents on the dissociation of para and meta disubstituted benzenes

✍ Scribed by F. Benoit

Publisher
John Wiley and Sons
Year
1972
Tongue
English
Weight
316 KB
Volume
6
Category
Article
ISSN
1076-5174

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✦ Synopsis

The effect of substituents on the activation energy for primary dissociation processes in the molecular ions of mono-andparu and meta di-substituted benzenes has been examined. Where the daughter ion retains the substituent group, variation of the energy of activation derives from a combination of the effects of substituents on the ionisation potential of the molecular ion and the appearance potential of the daughter ion. An equation relating the energy of activation for the fragmentation of the molecular ion of a mono-substituted benzene to that of related para and ineta di-substituted benzenes is presented.

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