A fragmentation study of the Rhodamine 610 cation using visible-laser desorption ionization

Journal of Mass Spectrometry : JMS
C Y YangRobert H Lipson

Abstract

The fragmentation of a potential visible matrix-assisted laser desorption ionization: Rhodamine 610 was studied under 532 nm visible irradiation, as a function of anion counter ion. It was found that at a fixed fluence, the chloride salt produced fewer fragments than those formed with ClO(4)(-) or BF(4)(-). Evidence presented suggests that the degree of fragmentation is inversely proportional to the strength of the contact ion pair in the solid state; that is, more energy is deposited into the radical cation which can lead to fragmentation when less energy is required to separate the ion pair. Similar results were found for salts of Rhodamine 6G.

References

Jul 2, 1997·Inorganic Chemistry·Edward A. RobinsonRonald J. Gillespie
Jun 6, 2006·Journal of the American Society for Mass Spectrometry·Jay J CorrThomas R Covey
Jul 11, 2006·Analytical and Bioanalytical Chemistry·Andreas Tholey, Elmar Heinzle
Nov 21, 2007·Rapid Communications in Mass Spectrometry : RCM·Lee Chuin ChenKenzo Hiraoka
Jun 30, 2009·Journal of the American Society for Mass Spectrometry·Konstantin ChinginRenato Zenobi
Dec 4, 2009·Journal of the American Society for Mass Spectrometry·Chunyan YangRobert H Lipson

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Citations

Sep 15, 2016·Cell and Tissue Research·Li XiaoXudong Li

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