Structural characterization of flavonoid glycosides by collisionally activated dissociation of metal complexes
Structural characterization of flavonoid glycosides by collisionally activated dissociation of metal complexes
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DOI：
10.1016/s1044-0305(01)00236-7
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发表时间：
2001-05-01
影响因子：
3.2
通讯作者：
Brodbelt, JS
中科院分区：
文献类型：
--
作者：
Satterfield, M;Brodbelt, JS
碰撞活化解离用于一系列黄酮苷的结构表征。[M-II（L -（+））]（+）型过渡金属/类黄酮二元络合物和[M-II（L-H+）bpy]（+）型过渡金属/2，2 '-联吡啶/类黄酮三元络合物的解离给出了与质子化、去质子化或钠阳离子化类黄酮互补且更具诊断性的裂解模式。[M-II（L-H+）bpy]（+）复合物的断裂模式的分析允许确定二糖为芸香糖或新橙皮糖以及二糖的相对位置（即，3与7个位置）。（J Am Soc Mass Spectrom 2001，12，537-549）（C）2001美国质谱学会。
Collisionally activated dissociation is used for structural characterization of a series of flavonoid glycosides. Dissociation of transition metal/flavonoid 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 than those of the protonated, deprotonated, or sodium-cationized flavonoids. Analysis of fragmentation patterns of the [M-II(L - H+)bpy](+) complexes permits determination of the disaccharide as a rutinose or neohesperidose and 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.