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Electron‐impact and thermal degradation of Rhodamine F5G chloride and related compounds
Author(s) -
Davie Elizabeth,
Morris John H.,
Smith W. Ewen
Publication year - 1974
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.1210090805
Subject(s) - thermal decomposition , chemistry , fragmentation (computing) , rhodamine , mass spectrum , chloride , photochemistry , mass spectrometry , hydrochloride , rhodamine b , inorganic chemistry , organic chemistry , chromatography , fluorescence , catalysis , physics , quantum mechanics , photocatalysis , computer science , operating system
The mass spectra and thermal decomposition of Rhodamine F5G hydrochloride have been studied in detail. Fragmentation schemes are presented which show that fragmentation in the mass spectrometer involves principally the substituents on the 9‐phenylxanthhydrol nucleus. Mass spectral studies of the related compounds Rhodamine B500 hydrochloride, Rhodamine F5G hydroxide and Rhodamine F5G dihydrogen phosphate are also reported. The thermal decomposition of Rhodamine F5G hydrochloride leads to initial loss of ethyl chloride and formation of the zwitterion which rearranges at higher temperature to a lactone. The further pyrolysis has also been studied.