全羟基杯[4]芳烃对钍和铀酰离子配位结合研究

Study on Coordination Binding of All Hydroxycalixarene to Thorium and Uranyl Ions

铀与钍原子具备相同的外层电子排布,其5f轨道可以参与成键,两种原子可形成配位数极为相似的配合物,将两种离子从共存的环境中分离较困难。铀主要以铀酰离子的离子形式存在,钍则以正四价钍离子形式存在。本研究采用较好识别和配位能力的刚性分子——全羟基杯[4]芳烃衍生物作为配体,在真空模型下,对铀酰离子及正四价钍离子进行配位吸附研究。

The Uranium and thorium atoms have the same outer electron configuration,their 5F orbitals can participate in bonding,and the coordination numbers of the two atoms are very similar,so it is very difficult to separate the two ions from the coexisting environment.Uranium exists mainly in the form of Uranyl ions and thorium in the form of tetravalent thorium ions.In this paper,the coordination adsorption of Uranyl Ions and tetravalent thorium ions has been studied under vacuum model,using the rigid molecule-calixarene derivatives with good recognition and coordination ability as ligands.