期刊
JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
卷 16, 期 12, 页码 1915-1920出版社
SPRINGER
DOI: 10.1016/j.jasms.2005.08.001
关键词
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The results of an electrospray ionization (ESI(+) and ESI(-)) collision-induced fragmentation investigation of meso-tetrakis(heptafluoropropyl)porphyrin ((THP)-H-F) are reported. The fragmentation patterns of (THP)-H-F show, in both ionization modes, the formation of fragments with direct covalent meso-alkyl-to-beta-linkages on elimination of HE In addition, in the ESI(+) mode, the losses of perfluoroalkyl radicals are observed. A detailed analysis of the fragmentation patterns allows conclusions to be drawn on the identification of the fragment species. Comparable cyclized products were previously produced using radical-initiated solution-phase syntheses. The results presented will help to analyze meso-perfluoroalkyl-derivatized porphyrinic macrocycles that are becoming increasingly popular.
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