Role of organic solvents and characterization of the extracted species in the synergistic extraction of lanthanoids(III)

为了探讨β-二酮(TTA和三氟丙酮)与芳香胺协同萃取稀土元素(III)的细节，测定了稀土元素(III)在β-二酮络合物及其与胺的加合物中的剩余水合数、络合热和络合物形成常数。此外，还从红外光谱中研究了胺中的给体原子与有机溶剂(如氯仿中的H)中的受体原子之间的相互作用。

In order to discuss the details of synergistic extraction of lanthanoids(III) with beta-diketones (TTA and pivaloyltrifluoroacetone) and aromatic amines, the residual hydration numbers of lanthanoids(III) in the beta-diketonato chelates and the adducts of the chelates with the amine, and the complexation heat as well as the adduct formation constants have been determined. In addition, the interaction between the donor atom in the amine and the acceptor atom in organic solvents such as H in chloroform has been examined from IR spectra measured.