Structural characterization of flavonoid glycosides by collisionally activated dissociation of metal complexes

Citation
M. Satterfield et Js. Brodbelt, Structural characterization of flavonoid glycosides by collisionally activated dissociation of metal complexes, J AM SOC M, 12(5), 2001, pp. 537-549
Citations number
44
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
ISSN journal
10440305 → ACNP
Volume
12
Issue
5
Year of publication
2001
Pages
537 - 549
Database
ISI
SICI code
1044-0305(200105)12:5<537:SCOFGB>2.0.ZU;2-T
Abstract
Collisionally activated dissociation is used for structural characterizatio n of a series of flavonoid glycosides. Dissociation of transition metal/fla vonoid binary complexes of the type [M-II(L - (+))](+) and transition metal /2,2'-bipyridine/flavonoid ternary complexes of the type [M-II(L - H+)bpy]( +) give fragmentation patterns that are complementary and more diagnostic t han those of the protonated, deprotonated, or sodium-cationized flavonoids. Analysis of fragmentation patterns of the [M-II(L - H+)bpy](+) complexes p ermits determination of the disaccharide as a rutinose or neohesperidose an d the relative placement of the disaccharide (i.e., 3 vs. 7 positions). (J Am Soc Mass Spectrom 2001, 12, 537-549) (C) 2001 American Society for Mass Spectrometry.