Green fluorescent diamine-oxazoline zinc complex as well as preparation method and application thereof

An oxazoline zinc, green fluorescence technology, applied in chemical instruments and methods, luminescent materials, organic chemistry and other directions, can solve the problems of high price, difficult mining, fluorescence lifetime and narrow emission spectrum, and achieve high yield , good stability, high product purity effect

Active Publication Date: 2020-12-15
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although rare earth luminescent complexes have the advantages of high color purity, strong light absorption ability, fluorescence lifetime and narrow emission spectral band, the difficulty of rare earth mining and high price limit the large-scale application of rare earth luminescent complexes in materials, so the development performance is excellent. Transition metal complex luminescent materials have important economic value and social significance

Method used

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  • Green fluorescent diamine-oxazoline zinc complex as well as preparation method and application thereof
  • Green fluorescent diamine-oxazoline zinc complex as well as preparation method and application thereof
  • Green fluorescent diamine-oxazoline zinc complex as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] L 1 Preparation of -Zn complexes (L 1 represents a methyl-substituted bisamine-oxazoline ligand)

[0028]

[0029] Under nitrogen protection, diethylzinc (0.415ml, 0.415mmol) and bisamine-oxazoline ligand H 2 L 1 (0.2g, 0.377mmol) were dissolved in 5ml tetrahydrofuran, diethylzinc solution was added dropwise to the ligand solution at -78°C, slowly raised to room temperature and reacted for 12h, and the solvent was removed under vacuum to obtain L 1 -Zn complex 0.210g, yield 95.6%. L 1 -Zn complex H NMR spectrum such as figure 1 shown. L 1 -Zn complex fluorescence spectrum as shown in figure 2 shown.

Embodiment 2

[0031] L 2 Preparation of -Zn complexes (L 2 represents an isopropyl-substituted bisamine-oxazoline ligand)

[0032] The preparation process of the complex is the same as the preparation method in Example 1, and the preparation method of the complex is as follows:

[0033]

[0034] The specific steps are similar to the method in Example 1, except that the ligand H 2 L 2 Replaced Ligand H above 2 L 1 . get L 2 -Zn complex 0.203g, yield 91.9%. L 2 -Zn complex H NMR spectrum such as image 3 shown. L 2 -Zn complex UV spectrum as shown in Figure 4 shown.

Embodiment 3

[0036] L 3 Preparation of -Zn complexes (L 3 represents a phenyl-substituted bisamine-oxazoline ligand)

[0037] The preparation process of the complex is the same as the preparation method in Example 1, and the preparation method of the complex is as follows:

[0038]

[0039] The specific steps are similar to the method in Example 1, except that the ligand H 2 L 3 Replaced Ligand H above 2 L 1 . get L 3 -Zn complex 0.195g, yield 88.9%.

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Abstract

The invention provides a green fluorescent diamine oxazoline zinc complex as well as a preparation method and application thereof, and belongs to the technical field of catalysis of luminescent materials. The complex can be obtained by direct reaction and purification of diamine oxazoline ligands containing different substituent groups and diethyl zinc, and the complex is high in yield and purity.The diamine-oxazoline zinc complex shows green fluorescence by taking 380nm as an excitation wavelength, the maximum emission wavelength is 491-495nm, and the fluorescence lifetime of the diamine oxazoline zinc complex is 10-10.75 microseconds. Moreover, the diamine oxazoline zinc complex can be directly used for catalyzing the ring-opening polymerization reaction of cyclic lactone and has relatively high catalytic activity, so that a series of high polymer materials with specific structures are obtained.

Description

technical field [0001] The invention belongs to the technical field of luminescent material catalysis, specifically relates to a green fluorescent bisamine-oxazoline zinc complex, and provides a preparation method and application thereof. Background technique [0002] As an important functional material, luminescent materials are widely used in medicine, industry, national defense, agriculture and other fields. Although rare earth luminescent complexes have the advantages of high color purity, strong light absorption ability, fluorescence lifetime and narrow emission spectral band, the difficulty of rare earth mining and high price limit the large-scale application of rare earth luminescent complexes in materials, so the development performance is excellent. Transition metal complex luminescent materials have important economic value and social significance. Contents of the invention [0003] One of purpose of the present invention is to provide a kind of preparation meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D263/10C08G63/08C08G63/83C09K11/06
CPCC07D263/10C09K11/06C08G63/08C08G63/823C08G63/83C09K2211/188C09K2211/1033C09K2211/1007C09K2211/1014
Inventor 潘昱蒋新新李文强万春腾孙兴润贺高红
Owner DALIAN UNIV OF TECH
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