The syntheses and efficient electromagnetic wave absorption properties of two Cu based coordination polymers

Abstract

Two Cu based coordination polymers (CPs) materials, namely, and [Cu(MHP)4]n·H2O] (1) (MHP = methyl hydrogen phthalate), and [Cu (TFBDC)]n·DMF] (2) (TFBDC = 2,3,5,6-tetrafluoroterephthalic acid) are synthetized by traditional slow volatilization method. The structures are elucidated clearly, and both CPs are characterized by elemental analyses, powder X-ray diffraction (PXRD), as well. The single crystal X-ray diffraction studies indicate that CP 1 and CP 2 are three-dimensional frameworks. The EMWA investigation manifests that both two CPs materials are effective electromagnetic wave absorbent. Furthermore, the dye adsorption capacities of CP 2 are evaluated by several organic dyes. The result shows that CP 2 has 99.9% remove efficiency to Congo red. Therefore, CP 2 is an ideal Congo red adsorbent in aqueous solution.