appropriate pH-gradient across an organic liquid membrane, selective up-hill transport of SCN− through the membrane was efficiently mediated by 6,6′-bis(4-hexylbenzoylamino)-2,2′-bipyridine upon complex formation with CuII, in which the metal center served as an SCN−-selective binding site while pH-switched dissociation-association of the amide proton(s) of the ligand regulated uptake and release of SCN−
在有机液膜上存在适当的 pH 梯度时,SCN− 通过膜的选择性上坡运输在复合物形成时由 6,6'-双(4-
己基苯甲酰
氨基)-
2,2'-联吡啶有效介导使用 CuII,其中
金属中心充当 SCN- 选择性结合位点,而
配体的酰胺质子的 pH 开关解离-结合调节 SCN- 的摄取和释放。