A Cu<sub>2</sub>I<sub>2</sub>-Based Coordination Framework as the Selective Sensor for Ag<sup>+</sup> and the Effective Adsorbent for I<sub>2</sub>
Yilin Wang, Xinyu Li, Song‐De Han, Jie Pan, Zhen‐Zhen Xue
Abstract
By using a N-containing tetradentate ligand tetra(pyridine-4-yl)benzene-1,4-diamine (TBD) as the coordination linker, a chemically stable metal–organic framework [Cu2I2(TBD)·DMF]n (1) has been successfully synthesized (DMF = N,N-dimethylformamide). Compound 1 features a three-dimensional architecture wherein the [Cu2I2] moieties are formed and further serve as the secondary building units to assist the fabrication of the final network. Solid-state photoluminescence behavior has been investigated on compound 1. Notably, the sensing experiments suggest that Ag+ exhibits a dramatic quenching effect on luminescence emission of 1, implying the great potential of the title compound as an Ag+ sensor. Related verification experiments have been conducted in detail. Moreover, compound 1 presents an effective I2 sorption performance, which could be further regarded as a promising adsorbent for the removal of targeted species.