Abstract
Three crystalline network compounds, ZrLimi-X based on four-connecting ligand with imidazole-derived chromophore were prepared by solvothermal methods. The three materials possess scu topology with large surface area and porosity. ZrLimi-X exhibit excellent thermal stability and chemical stability in both acidic and alkaline aqueous solutions. The three MOFs display good carbon dioxide adsorption capacity and interesting fluorescence properties. The peak position of fluorescence maximum emission and fluorescent lifetime of the ligand or MOFs with different stepwise methylation of imidazole show opposite trend of change caused by the methylation of imidazole which can reduce the conjugation of the ligands.
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