Charge remote fragmentation: Difference between revisions

Revision as of 17:28, 15 June 2013

Charge remote fragmentation
IUPAC RECOMMENDATIONS 2013
Fragmentation of an ion in which the cleaved bond is isolated from the apparent charge site by a distance of several bond lengths.
Related Term(s): charge-mediated fragmentation
Reference(s): A. Savagnac, H. Aurelle, C. Casas, F. Couderc, P. Gavard, D. Prome, J. C. Prome. Chem. Phys. Lipids 51, 31 (1989). (http://dx.doi.org/10.1016/0009-3084(89)90063-7 ) K. B. Tomer, N. J. Jensen, M. L. Gross, J. Whitney. Biomed. Environ. Mass Spectrom. 13, 265 (1986). (http://dx.doi.org/10.1002/bms.1200130602 )
From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013.
Index of Recommended Terms

Charge remote fragmentation
ASMS TERMS AND DEFINITIONS POSTER ENTRY
Decompositions that occur without any obvious involvement of the charge site. These reactions may be of closed-shell species and have thermal analogies or be of radical ions and be radical-site induced. One requirement is a stable charge site, which is usually closed shell, stable, and localized (e.g., -COO-, -COOLi2+, -OHNa+, -SO3-, etc.). The reactions are particularly useful in locating functional groups in aliphatic chains such as in fatty acids, surfactants, lipids, steroids but also occur for peptides and other biomolecules. Many charge-remote fragmentations require high-energy collisional activation but others have low-energy requirements and are seen at metastable-ion decompostions or under low-energy collisional conditions.
ASMS Terms and Definitions Poster

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-{{Def2|
+{{Final
-Fragmentation of an ion in which the cleaved bond is not adjacent to the apparent charge site.
+|acronym=
-}}
+|def=Fragmentation of an [[ion]] in which the cleaved bond is isolated from the apparent charge site by a distance of several bond lengths.
+|rel=[[charge-mediated fragmentation]]
+|ref=A. Savagnac, H. Aurelle, C. Casas, F. Couderc, P. Gavard, D. Prome, J. C. Prome. Chem. Phys. Lipids 51, 31 (1989). (http://dx.doi.org/10.1016/0009-3084(89)90063-7 )
-{{Rev5|
+K. B. Tomer, N. J. Jensen, M. L. Gross, J. Whitney. Biomed. Environ. Mass Spectrom. 13, 265 (1986). (http://dx.doi.org/10.1002/bms.1200130602 )
-Fragmentation of an [[ion]] in which the cleaved bond is isolated from the apparent charge site by a distance of several bond lengths.
-Related term:  [[charge-mediated fragmentation]].
-|
-#A. Savagnac, H. Aurelle, C. Casas, F. Couderc, P. Gavard, D. Prome, J. C. Prome. Chem. Phys. Lipids 51, 31-38 (1989).
-#K. B. Tomer, N. J. Jensen, M. L. Gross, J. Whitney. Biomed. Env. Mass Spectrom. 13, 265-272 (1986).
 }}