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

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 ClO₄ ⁻ or BF₄...

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Veröffentlicht in:Journal of mass spectrometry. 2010-08, Vol.45 (8), p.909-914
Hauptverfasser: Yang, C.Y, Hu, X.K, Loboda, A.V, Lipson, R.H
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container_title Journal of mass spectrometry.
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creator Yang, C.Y
Hu, X.K
Loboda, A.V
Lipson, R.H
description 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 ClO₄ ⁻ or BF₄ ⁻. 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. Copyright © 2010 John Wiley & Sons, Ltd.
doi_str_mv 10.1002/jms.1779
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Mass Spectrom</addtitle><description>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 ClO₄ ⁻ or BF₄ ⁻. 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. 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Copyright © 2010 John Wiley &amp; Sons, Ltd.</abstract><cop>Chichester, UK</cop><pub>John Wiley &amp; Sons, Ltd</pub><pmid>20648675</pmid><doi>10.1002/jms.1779</doi><tpages>6</tpages></addata></record>
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source MEDLINE; Wiley Online Library Journals Frontfile Complete
subjects anion effect
cation fragmentation
Cations
Cations - chemistry
Chemistry
Chlorides
Desorption
Exact sciences and technology
Fragmentation
Fragments
Ion pairs
Ionization
Mass spectrometry
matrices
Organic chemistry
Reactivity and mechanisms
Rhodamine
Rhodamine dyes
Rhodamines - chemistry
Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization - methods
Temperature
visible-MALDI
title fragmentation study of the Rhodamine 610 cation using visible-laser desorption ionization
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