中文摘要：

为获得具有高效率、低毒性以及选择性的铀酰配体,采用邻苯二酚配位单元拼接柔性烷基链β-二酮分子骨架,合成了一种双邻苯二酚配体。目标化合物结构经FT-IR、1 H NMR、13 C NMR及APCI-MS确证。采用光谱滴定和电位滴定法研究了其对UO2^2＋、Cu^2＋和Zn^2＋的螯合性能。结果显示,该配体与UO22＋和Cu2＋有较好的络合能力,同时与Zn2＋络合能力较弱,其pM值分别为20.98,15.14,7.31,表明该配体对UO22＋具有一定的选择性络合能力,有望成为一种潜在的促排剂。

英文摘要：

In order to get a uranyl ligand with high efficiency, low toxicity and selectivity, a bis（catecholamine） ligand was synthesized by incorporating the catecholamine chelate moiety into molecular scaffolds with flexible alkyl chain and β-diketone. The structure of the synthesized compounds was characterized by FT-IR, ^1 H NMR, ^13C NMR and APCI-MS. The chelating properties of the ligand with UO2^2＋ , Cu^2＋ and Zn^2＋ ions were investigated by spectrophotometric titration and potentiometric titration techniques. The results indicated that the his （catecholamine） ligand has effective binding ability with UO2^2＋ and Cu^2＋ , but weak bingding ability with Zn^2＋. Its pM values are 20.98, 15.14 and 7.31, respectively, which indicated that the bis（eateeholamide） ligand has a selective binding ability with UO2^2＋ and can be a potential decorporation agent in future.