Green fluorescent cadmium-organic coordination polymer and its preparation method and application
A coordination polymer, green fluorescent technology, applied in fluorescence/phosphorescence, color/spectral characteristic measurement, luminescent materials, etc., can solve pollution and other problems, and achieve excellent thermal stability
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Embodiment 1
[0032] Take the material according to the following specific mass or volume: H 4 etc(17.3mg, 0.05mmol), bpeb(14.2mg, 0.05mmol), Cd(NO 3 ) 2 4H 2 O (30.8 mg, 0.1 mmol), CH 3 CN (1mL), H 2 O (9 mL), 40% HBF 4 solution (40 uL, 0.25 mmol). Put the above material in 25mL polytetrafluoroethylene liner, stir for about 0.5h, seal it in a stainless steel reaction kettle, place it in an electric blast oven, and heat it up to 160°C. After reacting for 4 days, cool it naturally to room temperature to obtain a crystal sample. It is filtered from the mother liquor, washed with distilled water, and air-dried naturally.
[0033] The crystalline sample of described cadmium-organic coordination polymer Cd-MOCP carries out powder diffraction test with Shimadzu XRD-6100 type X-ray diffractometer (see image 3 , abscissa—angle; Ordinate—diffraction intensity I), the peak of the test spectrum and the peak energy of the crystal structure simulation spectrum (software Mercury) can be well matc...
Embodiment 2
[0050] Take the material according to the following specific mass or volume: H 4 etc(17.3mg, 0.05mmol), bpeb(14.2mg, 0.05mmol), Cd(NO 3 ) 2 4H 2 O (30.8 mg, 0.1 mmol), CH 3 CN (1mL), H 2 O (9 mL), 40% HBF 4 solution (60 uL, 0.38 mmol). Put the above material in 25mL polytetrafluoroethylene liner, stir for about 0.5h, seal it in a stainless steel reaction kettle, place it in an electric blast oven, and raise the temperature to 140°C. After reacting for 5d, cool naturally to room temperature to obtain block crystals. It was filtered out from the mother liquor, washed with distilled water, and dried naturally in the air at room temperature.
[0051] The product was characterized by powder X-ray diffraction, and the data obtained were similar to those in Example 1. It shows that the crystal structure prepared by Example 2 does not change, and the product has a higher purity.
[0052] This example was repeated several times, and the quality of the actually obtained Cd-MOCP ...
Embodiment 3
[0054] Take the material according to the following specific mass or volume: H 4 etc(17.3mg, 0.05mmol), bpeb(14.2mg, 0.05mmol), Cd(NO 3 ) 2 4H 2 O (30.8 mg, 0.1 mmol), CH 3 CN (1mL), H 2 O (9 mL), 40% HBF 4 solution (20 uL, 0.127 mmol). Put the above material in 25mL polytetrafluoroethylene liner, stir for about 0.5h, seal it in a stainless steel reaction kettle, place it in an electric blast oven, and raise the temperature to 150°C. After reacting for 6 days, cool it naturally to room temperature to obtain rod-shaped crystals. It was filtered from the mother liquor, washed with distilled water, and dried naturally in air at room temperature.
[0055] The product was characterized by powder X-ray diffraction, and the data obtained were similar to those in Example 1. It shows that the crystal structure prepared by Example 3 does not change and the product is relatively pure.
[0056] This example was repeated several times, and the quality of the actually obtained Cd-MOCP...
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