Charge remote fragmentation: Difference between revisions

From MS Terms
(→‎See also: clean up using AWB)
No edit summary
Line 1: Line 1:
{{Def2|
{{Def2|
Fragmentation of an ion in which the cleaved bond is not adjacent to the apparent charge site.
Fragmentation of an ion in which the cleaved bond is not adjacent to the apparent charge site.
}}
{{asms|
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.
}}
}}



Revision as of 22:40, 19 July 2009

Obsolete Template


ASMS TERMS AND DEFINITIONS POSTER ENTRY
Charge remote fragmentation

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


See also