Photo-induced yellow fluorescent zinc coordination polymer [Zn(HL)(HBPEB)] and method of synthesizing same

A technology of zinc coordination polymers and coordination polymers, applied in the direction of zinc organic compounds, chemical instruments and methods, luminescent materials, etc., to achieve the effects of high energy transfer efficiency, simple operation, and high thermal stability

Active Publication Date: 2015-12-09
CHONGQING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, tens of thousands of Zn-organic complexes have been synthesized, but most zinc-organic complexes emit blue or green fluorescence,

Method used

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  • Photo-induced yellow fluorescent zinc coordination polymer [Zn(HL)(HBPEB)] and method of synthesizing same
  • Photo-induced yellow fluorescent zinc coordination polymer [Zn(HL)(HBPEB)] and method of synthesizing same
  • Photo-induced yellow fluorescent zinc coordination polymer [Zn(HL)(HBPEB)] and method of synthesizing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation of embodiment 1 complex of the present invention

[0028] Weigh raw materials according to the following molar ratio: H 4 L:BPEB:Zn(NO 3 ) 2 :H 2 O:CH 3 CN=28︰26︰58︰8033︰3480 In a 50mL glass beaker, the mixture was stirred for 0.5 hours (h), then transferred to a 25mL reactor, reacted at 110°C for two days, cooled naturally to room temperature, and yellow crystals were observed , which is the target product, is filtered out from the mother liquor, washed with water and acetonitrile in turn, and then dried naturally.

[0029] The C, H, and N elements in the product [Zn(HL)(HBPEB)] were analyzed for elements, and the calculated values ​​(%): C, 62.25; H, 3.45; N, 4.03. Actually found (%): C, 62.41; H, 3.51; N, 3.97. FT-IR (KBr, cm -1 ): 3231(w), 3067(w), 3014(w), 1682(m), 1614(vs), 1493(m), 1379(vs), 1234(s), 1205(s), 1138(m ), 841(m), 810(m). Note: Elemental analysis values ​​are measured by Perkin-Elmer2400 elemental analyzer; infrared spectrum ...

Embodiment 2

[0033] The preparation of embodiment 2 complexes of the present invention

[0034] Weigh raw materials according to the following molar ratio: H 4 L:BPEB:Zn(NO 3 ) 2 :H 2 O:CH 3 CN=31:28:60:8383:3740 into a 50mL glass beaker, the mixture was stirred for 1 hour (h), then transferred into a 25mL reactor, reacted at 120°C for three days, cooled naturally to room temperature, and yellow crystals were observed , which is the target product, is filtered out from the mother liquor, washed with water and acetonitrile in turn, and then dried naturally.

[0035] The product was characterized by elemental analysis, infrared, fluorescence, and X-ray powder diffraction, and the obtained data were similar to those in Example 1. Illustrate that the crystal structure that makes with embodiment 2 does not change and product is purer (see Figure 7 ), and performance has not changed (see Figure 6 ).

[0036] This example was repeated several times, and the mass of [Zn(HL)(HBPEB)] obtai...

Embodiment 3

[0037] The preparation of embodiment 3 complexes of the present invention

[0038] Weigh raw materials according to the following molar ratio: H 4 L:BPEB:Zn(NO 3 ) 2 :H 2 O:CH 3 CN=34:30:62:8733:3999 Put it in a 50mL glass beaker, stir the mixture for 1.5h, then transfer it into a 25mL reactor, react at 130°C for four days, cool it down to room temperature naturally, and observe yellow crystals, which is the target product, it is filtered out from the mother liquor, washed with water and acetonitrile in turn, and then dried naturally.

[0039] The product was characterized by elemental analysis, infrared, fluorescence, and X-ray powder diffraction, and the obtained data were similar to those in Example 1. Illustrate that the crystal structure that makes with embodiment 3 does not change and product is purer (see Figure 7 ), and performance has not changed (see Figure 6 ).

[0040] This example was repeated several times, and the mass of [Zn(HL)(HBPEB)] obtained accor...

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Abstract

The invention belongs to the technical field of luminescent materials, and particularly relates to a zinc coordination polymer [Zn(HL)(HBPEB)] and a method of synthesizing the same. The zinc coordination polymer [Zn(HL)(HBPEB)] disclosed by the invention is a photo-induced yellow fluorescent material having a molecular structure shown below. The invention also provides a method of synthesizing the zinc coordination polymer [Zn(HL)(HBPEB)]. The zinc coordination polymer [Zn(HL)(HBPEB)] is prepared from zinc nitrate, ligand H4L and BPEB by using a solvothermal synthesis method. The zinc coordination polymer [Zn(HL)(HBPEB)] has higher thermal stability and is a novel photo-induced yellow fluorescent material.

Description

technical field [0001] The invention belongs to the technical field of luminescent materials, and in particular relates to a photo-yellow fluorescent zinc coordination polymer [Zn(HL)(HBPEB)] and a synthesis method thereof. Background technique [0002] Since 1987, Tang et al first used the metal-organic complex 8-hydroxyquinoline aluminum (AlQ 3 ) as a light-emitting layer to prepare a high-brightness light-emitting device (OLED) driven by DC low voltage, metal-organic complexes (including metal-organic coordination polymers) as new light-emitting materials have attracted the attention of scientists from all over the world. A class of excellent luminescent materials that are widely used and at the forefront. Metal-organic complexes have the advantages of high stability and long service life of inorganic light-emitting materials, as well as the advantages of directional design and clear structure-activity relationship of organic light-emitting materials; at the same time, t...

Claims

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Application Information

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IPC IPC(8): C09K11/06C07F3/06
Inventor 黄坤林杨鑫虞哲肖凤陈新张明星
Owner CHONGQING NORMAL UNIVERSITY
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