Charge remote fragmentation: Difference between revisions

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{{Def2|
{{Final
Fragmentation of an ion in which the cleaved bond is not adjacent to the apparent charge site.
|acronym=(CRF)
}}
|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]]
{{Rev5|
|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 )
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).
}}


{{asms|
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 )
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.  
}}
}}


== See also ==
*[[Charge Exchange Reaction]]
*[[Charge-Induced Fragmentation]]
*[[Charge Inversion Reaction]]
*[[Charge Permutation Reaction]]
*[[Charge Stripping Reaction]]
*[[Charge Transfer Reaction]]
*[[Charge-Mediated Fragmentation]]


[[Category:Reactions]]
[[Category:Reactions]]
{{DEFAULTSORT:Charge-Remote Fragmentation}}

Latest revision as of 23:29, 3 November 2013

IUPAC RECOMMENDATIONS 2013
Charge remote fragmentation (CRF)
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.

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