Bortňák D, Pecher D, Végh D, Breza M, Mikuš P, Milata V. Mass spectrometrical and quantum-chemical study of pentafluorophenylhydrazones.
JOURNAL OF MASS SPECTROMETRY : JMS 2020;
55:e4540. [PMID:
33247509 DOI:
10.1002/jms.4540]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/02/2020] [Accepted: 04/30/2020] [Indexed: 06/12/2023]
Abstract
Twenty-one pentafluorphenylhydrazones have been analyzed by means of tandem mass spectrometry (ESI MS/MS) conditions to compare their fragmentations with those ones obtained from quantum-chemical calculations of the hydrazone moiety depending on the substitution from the aldehyde site. The hydrazone N-N bond is disrupted under such conditions, and these results are in accordance with the facts that an electron-rich particle, such as an anion and or radical in a solution, can cause this disruption and simultaneous defluorination in para-position of the hydrazone part of the molecule.
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