Two isostructural Cd(II) coordination polymers showing different adsorption behaviors toward methyl orange (MO)
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Two isostructural Cd(II) coordination polymers (CPs), namely {[Cd(L)(H<sub>2</sub>O)<sub>2</sub>](ClO<sub>4</sub>)<sub>2</sub>}<i><sub>n</sub></i> (I) and {[Cd(L)(H<sub>2</sub>O)(dca)](ClO<sub>4</sub>)}<i><sub>n</sub></i> (II), have been synthesized by assembling a multidentate building block 3,4-bis(3-pyridyl)−5-(4-pyridyl)−1,2,4-triazole (L) with Cd(ClO<sub>4</sub>)<sub>2</sub> in the absence or presence of sodium dicyanamide (Na(dca)). Single-crystal X-ray diffraction reveals that both CPs show the similar 2D-layered structures. Interestingly, they present distinct adsorption capacities (7% for I and 18% for II) toward the anionic dye methyl orange (MO). The results indicate that complex II shows higher adsorption ability, which may be ascribed to the charge effect of cationic framework.
提供机构：
Taylor & Francis
创建时间：
2020-02-27
