The mass spectra of carboxylic acids—III: The structures of molecular and fragment ions in benzoic acid and related molecules | Zendy

Holmes J. L. | Zendy; Benoit F. | Zendy

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The mass spectra of carboxylic acids—III: The structures of molecular and fragment ions in benzoic acid and related molecules

Author(s) -

Holmes J. L.,

Benoit F.

Publication year - 1970

Publication title -

organic mass spectrometry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.475

H-Index - 121

eISSN - 1096-9888

pISSN - 0030-493X

DOI - 10.1002/oms.1210040111

Subject(s) - benzoic acid , phthalic acid , mass spectrum , chemistry , fragmentation (computing) , molecule , ion , mass spectrometry , deuterium , derivative (finance) , electron ionization , stereochemistry , organic chemistry , chromatography , quantum mechanics , computer science , physics , financial economics , economics , ionization , operating system

The mass spectra of benzoic acid and its carboxyl‐deuterated derivative have been studied in detail. Molecular and fragment ion structures are proposed and the role of ortho hydrogen atoms in rearrangements is discussed. The behaviour under electron‐impact of phthalaldehydic acid and its carboxyl deuterated derivative provides evidence in support of ion structures in the benzoic acid fragmentation. From these results the fragmentation mechanism for phthalic acid is further elucidated. The mass spectrum and fragmentation mechanism of thiobenzoic acid is described and compared with that of benzoic acid.

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