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A kind of blue-green fluorescent material and preparation method thereof

A technology of blue-green fluorescence and spatial structure, applied in the field of blue-green fluorescent materials and their preparation, can solve the problems of rare combination of transition metals and luminescence, etc.

Active Publication Date: 2017-02-22
汇康荧光科技(清远)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rare earth complexes such as Eu 3+ , Yb 2+ 、Sm 2+ and Ce 3+ Their luminescence is often observed due to the presence of f-d radiative transitions, especially for Tb 3+ and Eu 3+ The radiative transition of the transition metal falls in the visible region and attracts more attention, but the luminescence of transition metal complexes is less common

Method used

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  • A kind of blue-green fluorescent material and preparation method thereof
  • A kind of blue-green fluorescent material and preparation method thereof
  • A kind of blue-green fluorescent material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh Zn(OAc) 2 2H 2 O (33mg, 0.15mmol), sulfadiazine (38.4mg, 0.12mmol), 1,3-bis(tetra-pyridyl)propane (21.6mg, 0.12mmol) and KOH (5.9mg, 0.15mmol) were placed in a 30mL Crucible milling for 15 minutes. Then put it into a 25mL stainless steel autoclave lined with polytetrafluoroethylene. Add 8.0 mL of deionized water to the reactor to seal and heat at 80 °C for 60 h. After the reaction, it was cooled to room temperature, and a colorless block crystal was precipitated, which was the blue-green fluorescent material.

Embodiment 2

[0025] Weigh ZnCl 2 4H 2 O (62mg, 0.30mmol), sulfadiazine (32mg, 0.1mmol), 1,3-bis(tetra-pyridyl)propane (24mg, 0.043mmol) and KOH (7.8mg, 0.2mmol) were placed in a 30mL crucible Mill for 20 minutes. Then put it into a 25mL stainless steel autoclave lined with polytetrafluoroethylene. Add 15.0 mL of deionized water, seal the reaction kettle, and heat at 90° C. for 48 h. After the reaction, it was cooled to room temperature, and a colorless block crystal was precipitated, which was the blue-green fluorescent material.

Embodiment 3

[0027] Weigh Zn(OAc) 2 2H 2 O (66mg, 0.30mmol), sulfadiazine (96mg, 0.30mmol), 1,3-bis(tetra-pyridyl)propane (54mg, 0.30mmol) and KOH (17mg, 0.30mmol) were placed in a 30mL crucible and ground Grind for 30 minutes. Then put it into a 25mL stainless steel autoclave lined with polytetrafluoroethylene. Add 10.0 mL of deionized water, seal the reaction kettle, and heat at 100° C. for 36 h. After the reaction, it was cooled to room temperature, and a colorless block crystal was precipitated, which was the blue-green fluorescent material.

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Abstract

The invention discloses a blue-green fluorescent material and a preparation method thereof. A zinc sulfadiazine compound having a certain spatial structure is prepared by carrying out a chemical reaction on sulfadiazine which has a conjugated pi bond, 1,3-di (tetra-pyridyl) propane and zinc ions having optical activity, wherein the molecular formula of the compound is C46H46N12O4S2Zn, the molecular weight is 960.45, the crystal system is monoclinic, and the space group is P21; cell parameters are as follows: a is equal to 0.0948 angstrom, b is equal to 1.7522 angstrom, c is equal to 1.1450 angstrom, alpha is equal to 90.00 degrees, beta is equal to 113.3920 degrees and gamma is equal to 90.00 degrees, zinc ions are in the shape of a deformed octahedral geometrical configuration, and bond lengths are respectively 1.948 angstrom, 2.060 angstrom, 2.153 angstrom, 2.157 angstrom, 2.577 angstrom and 2.679 angstrom. The compound fluorescent material disclosed by the invention is rich in optical activity and Zn (II) ions and conjugated pi bond of unique coordination configuration, which is conducive to electron transition and energy transfer, and the compound, with unique photoelectric activity and unique blue-green fluorescence emitting performance, can be used as a fluorescent material.

Description

technical field [0001] The invention belongs to the field of material chemistry, and in particular relates to a blue-green fluorescent material and a preparation method thereof. Background technique [0002] Normally, most molecules of fluorescent materials are in the lowest energy state at room temperature, namely the ground state. But when they are irradiated by ultraviolet light or visible light, their molecules absorb light that is consistent with its characteristic frequency, and transition from the original energy level to the first electronic excited state or the second electronic excited state. level and rotational energy level. Molecules in the excited state jump to the lowest vibrational energy level of the first excited state of the molecule through vibrational relaxation, internal conversion, etc. During this process, they collide with similar molecules or other molecules and consume energy equivalent to these energy levels. the energy of the space, and therefo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/06C07F3/06
Inventor 赵秀华李星赵亚云康晶燕刘素娟
Owner 汇康荧光科技(清远)有限公司