Cd (II) metallic organic complex and preparation method thereof

[0025] 1. Preparation of Cd(II) metal-organic complexes based on 2,5-furandicarboxylic acid

[0026] The preparation method comprises the following steps:

[0027] (1) Equimolar amounts of Cd(NO 3 ) 2 4H 2 O (0.154g, 0.5mmol) and FDCA (0.078g, 0.5mmol) were added to 12mL DMF solvent, then stirred for 30 minutes;

[0028] (2) Add the substance in step 1 into a polytetrafluoroethylene reactor with a volume of 23mL, keep 130°C for 72 hours at a constant temperature under autogenous pressure, and then cool down to room temperature at a rate of 5°C / h;

[0029] (3) The mixture in step 2 was filtered to collect crystals, washed with absolute ethanol and dried to obtain colorless crystals (yield according to FDC calculation: 62%).

[0030] 2. Identification of Cd(Ⅱ) metal-organic complexes based on 2,5-furandicarboxylic acid

[0031] Through the following elemental analysis, IR spectrum and X-ray single crystal diffraction analysis, the colorless crystal obtained in the above ste...

[0042] In this example, the 2,5-furandicarboxylic acid-based Cd(II) metal-organic complex obtained in Example 1 was used to study the fluorescence properties. The specific research methods are as follows:

[0043] (1) Fluorescence performance test: measure the solid-state fluorescence spectrum of the Cd(II) metal organic complex based on 2,5-furandicarboxylic acid in the range of 300-600 nm at room temperature.

[0044] (2) Experimental results

[0045] The results of solid-state fluorescence spectroscopy are displayed (see Figure 4 ), the Cd(II) metal-organic complex based on 2,5-furandicarboxylic acid of the present invention emits bright blue fluorescence, and the maximum fluorescence emission wavelength at the excitation wavelength of 350nm is 470nm.