Four 1,8-naphthalimide derivatives (3a-3d) were designed and synthesized from 1,8-naphthalic anhydride and their structures were characterized by 1H NMR and MS. Their recognition ability to metal ions was then investigated. The results showed the quenching constants (KCV) and binding constants (Ka) values were found in the range of 102-104 M-1, indicating important metal ions recognition abilities of compounds 3a-3d. All the compounds showed recognition of ferric ion, while compounds 3a-3d showed the best recognition ability of silver, cadmium, ferric and ferrous ions, respectively.
以
1,8-萘二甲酸酐为原料,设计合成了四种1,8-
萘二甲
酰亚胺衍
生物(3a-3d),并通过1H NMR和MS对其结构进行了表征。然后研究了它们对
金属离子的识别能力。结果显示,猝灭常数(KCV)和结合常数(Ka)值在102-104 M-1范围内,表明化合物3a-3d具有重要的
金属离子识别能力。所有化合物均表现出对三价
铁离子的识别能力,其中化合物3a-3d分别表现出对
银、
镉、三价
铁和亚
铁离子的最佳识别能力。