杯[4]芳烃衍生物与Ce(Ⅲ)配合物的光谱性质研究

The spectral properties of the complexes of calix [4] arene derivatives with cerium(Ⅲ)

采用紫外光谱和荧光光谱对杯[4]芳烃衍生物A与Ce(Ⅲ)的配合物进行了研究。实验结果表明,配合物在λ=250nm产生一个新的紫外吸收峰,同时Ce(Ⅲ)可产生λex,max=254 nm,λem,max=361 nm的自身荧光。而杯[4]芳烃A在一定条件下能淬灭其荧光,可见杯[4]芳烃衍生物A在稀土分离与提取中有潜在的应用价值。

Using the UV spectra and fluorescence spectra, the complexes formed from calix[4] arene derivatives A and rare earth Ce（III） were studied. The experimental results showed that the complex has a new purple peak（λ =250nm）; Ce（III） can produce auto-fluorescence（λem,max=254 nm and λex, max=361 nm）; the calix [4] arene A under certain conditions can quench the fluorescence, so calix [4] arene derivative A has potential application value in the separation and extraction of rare earth.