Study by liquid secondary ion and electrospray mass spectrometry of synthesized and formed-in-source metallocorroles

J F B Barata; C M Barros; M G O Santana-Marques; M G P M S Neves; M A F Faustino; A C Tomé; A J Ferrer Correia; J A S Cavaleiro

doi:10.1002/jms.1156

Study by liquid secondary ion and electrospray mass spectrometry of synthesized and formed-in-source metallocorroles

J Mass Spectrom. 2007 Feb;42(2):225-32. doi: 10.1002/jms.1156.

Authors

J F B Barata¹, C M Barros, M G O Santana-Marques, M G P M S Neves, M A F Faustino, A C Tomé, A J Ferrer Correia, J A S Cavaleiro

Affiliation

¹ Organic Chemistry Laboratory, Department of Chemistry, University of Aveiro, Campus Santiago, 3810-193 Aveiro, Portugal.

PMID: 17177240
DOI: 10.1002/jms.1156

Abstract

Liquid secondary ion and electrospray mass spectrometry were used to study the complexation in-source of 5,10,15-tris(pentafluorophenyl)corrole with several divalent transition-metal ions. The metallocorrole ions formed in-source were identified by comparing their product ion mass spectra with the spectra of the same ions formed from metallocorroles obtained from classical procedures. Positive metallocorrole ion formation is accompanied by oxidation of the metal centre. Mechanisms were proposed for the oxidation processes, and data from negative-ion spectra reinforced these mechanisms.