Zn (II) coordination polymer as well as preparation method and application thereof

A technology of coordination polymer and reaction kettle, applied in optics, instruments, nonlinear optics, etc., to achieve the effect of preventing laser interference, strong third-order nonlinear optics anti-saturable absorption performance, and high yield

Inactive Publication Date: 2016-09-21
HENAN INST OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

By assembling the above-mentioned metal-pyridine building blocks and 1,4-naphthalene dicarboxylic acid, a coordination polymer containing a large π-conjugated system can be constructed, but there is no third-order non- A report on anti-saturated absorption in linear optics

Method used

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  • Zn (II) coordination polymer as well as preparation method and application thereof
  • Zn (II) coordination polymer as well as preparation method and application thereof
  • Zn (II) coordination polymer as well as preparation method and application thereof

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preparation example Construction

[0019] A kind of preparation method of Zn(II) coordination polymer, comprises the following steps: the transition metal salt containing Zn(II), 1,4-naphthalene dicarboxylic acid, 4-phenyl-2,2':6', 2”-terpyridine, ethanol and distilled water were put into the reaction kettle, the pH value was adjusted by NaOH, the reaction kettle was closed, and the reaction was carried out at 150°C for four days, and then the mixture in the reaction kettle was mixed at a rate of 5°C per hour. The temperature is lowered to room temperature, and after filtering and washing with constant temperature water, yellow blocky crystals are obtained, and the above-mentioned yellow blocky crystals are naturally dried in the air. The Zn(II) in the transition metal salt containing Zn(II) The ratio of the number of moles of 1,4-naphthalene dicarboxylic acid to the number of moles of 4-phenyl-2,2':6',2"-terpyridine is 1:1:2. The transition metal salt containing Zn(II) is one of zinc acetate, zinc nitrate hexa...

Embodiment 1

[0023] A kind of Zn (II) coordination polymer and preparation method thereof, the chemical formula of this coordination polymer is: {Zn 12 (1,4-NDC) 12 (TPY) 12 2H 2 O} n ; Wherein, 1,4-NDC=1,4-naphthalene dicarboxylic acid, TPY=4-phenyl-2,2':6',2 "-terpyridine. The infrared absorption peaks of the coordination polymer include: 3394(s), 3112(s), 2970(w), 1621(s), 1521(m), 1440(m), 1369(s), 1288(m), 1240(m), 1141(m), 1105(m), 991(w), 952(m), 860(w), 833(s), 754(m), 738(m), 701(m), 653(m), 584(m); Coordination polymers crystallize in the orthorhombic system, P2 1 2 1 2 1 space group, the unit cell parameters are: The structural unit of the coordination polymer includes 12 Zn(II) ions, 12 1,4-NDC ions and 12 TPY molecules, and each Zn(II) ion in the structural unit adopts tetragonal pyramid coordination configuration, which are respectively coordinated with nitrogen atoms in one TPY molecule and oxygen atoms in two 1,4-NDC molecules; among them, six Zn(II) ions, six 1...

Embodiment 2

[0026] A kind of Zn (II) coordination polymer and preparation method thereof, the chemical formula of this coordination polymer is: {Zn 12 (1,4-NDC) 12 (TPY) 12 2H 2 O} n ; Wherein, 1,4-NDC=1,4-naphthalene dicarboxylic acid, TPY=4-phenyl-2,2':6',2 "-terpyridine. The infrared absorption peaks of the coordination polymer include: 3394(s), 3112(s), 2970(w), 1621(s), 1521(m), 1440(m), 1369(s), 1288(m), 1240(m), 1141(m), 1105(m), 991(w), 952(m), 860(w), 833(s), 754(m), 738(m), 701(m), 653(m), 584(m); The polymer crystallizes in the orthorhombic system, P2 1 2 1 2 1 space group, the unit cell parameters are: The structural unit of the coordination polymer includes 12 Zn(II) ions, 12 1,4-NDC ions and 12 TPY molecules, and each Zn(II) ion in the structural unit adopts tetragonal pyramid coordination configuration, which are respectively coordinated with nitrogen atoms in one TPY molecule and oxygen atoms in two 1,4-NDC molecules; among them, six Zn(II) ions, six 1,4-NDC io...

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Abstract

The invention belongs to a Zn (II) coordination polymer as well as a preparation method and an application thereof. The chemical formula of the Zn (II) coordination polymer is [Zn 12(1,4-NDC )12(TPY )12*2H2O]n, wherein 1,4-NDC is 1,4-naphthalenedicarboxylic acid, TPY is 4-phenyl-2,2':6',2''-terpyridine. The Zn (II) coordination polymer as well as the preparation method and the application thereof have the advantages that the preparation method is simple and easy to operate, the product yield is high, the product can be stable at the temperature of 130 DEG C or lower and has high third-order nonlinear optical reverse saturable absorption performance, the third-order nonlinear susceptibility Chi<3> of a pure material is 6.46*10<-8> esu, and the Zn (II) coordination polymer can be applied to optical limiting and laser protection devices.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and in particular relates to a Zn(II) coordination polymer and its preparation method and application. Background technique [0002] With the development of laser technology, its application in the military field continues to expand. For example, laser interference and blinding weapons can attack human eyes and photoelectric sensing devices, and can make the vision of photoelectric reconnaissance, artillery, navigation and guidance systems and even human eyes When disturbed, the damage is blinding. As such weapons continue to develop and become more automated, the threat in this regard is growing. Corresponding protective measures have been valued by various countries, and laser protective materials have important research value in the protection against such weapons, and have become a hot research field today. At present, most of the laser protection devices that have been put int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00G02F1/361G02B5/22
CPCC08G83/008G02B5/22G02F1/3615
Inventor 连照勋王敏赵宁刘萍安彩霞
Owner HENAN INST OF SCI & TECH
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