Analytical Sciences

Tunable Selectivity of Lanthanide Ion Exchange within a Coordination Polymer

Yuiko TASAKI-HANDA, Kenta OOI, Mikiya TANAKA, and Akihiro WAKISAKA

Research Institute for Environmental Management Technology, National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan

The exchange of lanthanide(III) ions (Ln³⁺) between a solution and a coordination polymer (CP) formed by cerium(III) or samarium(III) ion and an organophosphorous ligand has been studied. The CPs exhibit distinctive Ln³⁺ affinity that varies with a small change in its framework, depending on the central Ln³⁺.

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