A kind of solid broadband green light emitting crystal material and preparation method thereof
A crystalline material and broadband technology, applied in the field of solid-state broadband green light-emitting crystalline materials and their preparation, can solve problems such as affecting device performance, and achieve the effects of enhanced luminescence performance, easy control, and less weathering
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Embodiment 1
[0033] Embodiment 1: Synthesis of solid-state broadband green light emitting crystal material (compound I)
[0034]
[0035] Dissolve 3-(3-(4-fluorophenyl)-1-isopropyl-1H-indol-2-yl)propenal (30mmol) and 4-aminoantipyrine (30mmol) in 100ml of In water and ethanol, add 0.5 ml of glacial acetic acid dropwise under rapid stirring, and reflux for 3 hours under stirring; after that, the ethanol is removed by rotary evaporation, and the obtained solid matter is vacuum filtered and dried to obtain the target product; the crude product is weighed with methanol or ethanol After crystallization twice, ethanol was used as a solvent, and the crystallization was naturally volatilized at room temperature. After 10 days, a light brown bulk crystal suitable for X-ray single crystal diffraction measurement was obtained, with a yield of 87%.
[0036] The obtained product was determined to be the target product by proton nuclear magnetic resonance spectrum, carbon nuclear magnetic resonance s...
Embodiment 2
[0038] Embodiment 2: Synthesis of solid-state broadband green light emitting crystal material (compound Ⅰ)
[0039] Obtained by the method of Example 1, the difference is that 3-(3-(4-fluorophenyl)-1-isopropyl-1H-indol-2-yl)propenal and 4-aminoantipyrine The molar ratio is 1:1.1, and the organic solvent used in the reaction is chloroform.
Embodiment 3
[0040] Embodiment 3: determination of crystal structure
[0041]In order to further determine the molecular structure of the crystal material, X-ray single crystal structure analysis was carried out on the crystal of the solid broadband green light emitting crystal material prepared in Example 1. Select a single crystal with a suitable size under a microscope, and the single crystal used for single crystal structure determination has a size of 0.400x 0.340x 0.270mm and is light brown. Crystal structure determination was carried out on a Bruker Smart1000CCD X-ray single crystal diffractometer with graphite monochromated Cu K α Rays Diffraction data were collected at 150(2)K. The crystal structure was solved by the direct method, and the software used was SHELXS-2013 and SHELXL-2014. All non-hydrogen atoms are obtained by the difference Fourier synthesis and the difference electron density function correction, and the coordinates of all hydrogen atoms are obtained from the d...
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