An insight into the gas-phase fragmentations of potential molecular sensors with porphyrin-chalcone structures
authors Ramos, CIV; Moura, NMM; Santos, SMF; Faustino, MA; Tome, JPC; Amado, FML; Neves, MGPMS
nationality International
journal INTERNATIONAL JOURNAL OF MASS SPECTROMETRY
author keywords Porphyrin-chalcone derivatives; ESI-MS; Differentiation of positional isomers; Diagnostic fragment ions; Multi-stage mass spectrometry
keywords TANDEM MASS-SPECTROMETRY; ELECTROSPRAY-IONIZATION; FLUORESCENT SENSORS; METAL-IONS; CADMIUM
abstract Porphyrin-chalcone derivatives with potential cation sensing ability have been studied by ESI-MS and multistage ESI-MS. The presence of conjugated C=C and C=O double bonds in the chalcone moiety is responsible for the formation of diagnostic fragment ions common to all the studied meta and para chalcones. The ortho isomers show different fragmentation patterns that can be explained by different electronic charge distributions. (C) 2015 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE BV
issn 1387-3806
year published 2015
volume 392
beginning page 164
ending page 172
digital object identifier (doi) 10.1016/j.ijms.2015.10.008
web of science category Physics, Atomic, Molecular & Chemical; Spectroscopy
subject category Physics; Spectroscopy
unique article identifier WOS:000366441700025
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journal impact factor 1.826
5 year journal impact factor 1.701
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