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Dipositively Charged Protonated a 3 and a 2 Ions: Generation by Fragmentation of [La(GGG)(CH 3 CN) 2 ] 3+
Author(s) -
Shi Tujin,
Siu ChiKit,
Siu K. W. Michael,
Hopkinson Alan C.
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200802272
Subject(s) - ion , protonation , fragmentation (computing) , dissociation (chemistry) , chemistry , iminium , crystallography , physics , computer science , organic chemistry , operating system
Stay positive! Dissociation of a lanthanum complex of triglycine generates a novel diprotonated iminium ion (see picture; gray C, white H, light blue La, dark blue N, red O), which undergoes rich fragmentations. This class of peptide fragment ions provides a system to model multiple charge effects and is potentially useful in peptide sequencing.