摘要
本文通过单晶X-射线衍射方法考察了六元瓜环(Q[6])与系列镧系金属离子在硝酸镉(Cd(NO3)2)存在条件下的相互作用。实验结果表明:(Q[6])只与镧系金属中的镧(La)、铈(Ce)、镨(Pr)、钕(Nd)四种离子配位,形成1∶1的配合物,而与其余的稀土金属离子不发生直接配位作用,这一特性有可能用于轻稀土离子与重稀土离子分离的应用。
The interaction of cucurbit [ 6 ] uril ( Q [ 6 ] ) with lanthanide cations ( Ln^3+) in the presence of Cd (NO3)2 has been investigated by using single crystal X-ray diffraction analysis. The experiment results showed that the Q [ 6 ] molecule can only coordinate with the first four light lanthanide cations La^3+ , Ce^3+, Pr^3+, Nd^3+ and form 1 : 1 Q [ 6 ]/Ln^3+ coordination complexes respectively, whereas Q [ 6 ] can not directly coordinate with the rest lanthanide cation, suggesting that the light lanthanide cations could be isolated from their heavy counterparts.
出处
《贵州大学学报(自然科学版)》
2015年第2期16-19,共4页
Journal of Guizhou University:Natural Sciences
基金
国家自然科学基金资助项目(20971002和21371004)
关键词
镧系金属
六元瓜环
配合物
单晶X-射线衍射
lanthanide cations
Q [ 6 ]
coordination complexes
single crystal X-ray diffraction