Studies on metal-ion complex formation of crown ether derivatives incorporating a photoionizable spirobenzopyran moiety by electrospray ionization mass spectrometry
Studies on metal-ion complex formation of crown ether derivatives incorporating a photoionizable spirobenzopyran moiety by electrospray ionization mass spectrometry
复制标题
电喷雾电离质谱研究含有光可电离螺苯并吡喃部分的冠醚衍生物的金属离子配合物形成
作者：
K. Kimura;H. Sakamoto;Shinpei Kado;R. Arakawa;M. Yokoyama
冠醚衍生物的金属离子络合作用
将一个和两个螺苯并吡喃单元合并在一起的研究
电喷雾电离质谱仪。冠冕螺苯并吡喃
衍生物对金属离子的络合行为与
它们对应的母体冠醚环，更喜欢多价而不是
由于与单价金属离子的额外离子相互作用
花青基的硝基酚类阴离子。在线光化学
质谱学分析表明，金属离子络合
冠醚螺苯并吡喃的能力和离子选择性可以
通过光化学转换，利用了
螺吡喃和花青异构体。
Metal-ion complexation of crown ether derivatives
incorporating one and two spirobenzopyran units was investigated by
electrospray ionization mass spectrometry. The crowned spirobenzopyran
derivatives exhibited very different metal ion-complexing behavior from
their corresponding parent crown ether rings, preferring multivalent to
monovalent metal ions owing to the additional ionic interaction with the
nitrophenolate anion of the merocyanine moiety. The on-line photochemical
reaction for mass spectrometry indicated that the metal ion-complexing
ability and ion selectivities of the crowned spirobenzopyrans can be
switched photochemically, taking advantage of the difference between the
spiropyran and merocyanine isomers.
M.Sawada：“在 FAB 质谱中碳水化合物或冠醚主体与有机铵离子客体的对映选择性络合。”
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