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Orange-red fluorescent zinc coordination polymer with mixed ligands, preparation method of polymer and application of polymer

A technology of zinc coordination polymers and mixed ligands, applied in zinc organic compounds, fluorescence/phosphorescence, luminescent materials, etc., to achieve the effects of simple and feasible preparation conditions, strong practicability, and high thermal stability

Active Publication Date: 2019-05-10
CHONGQING NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The common transition metal zinc (Zn) and its salts are cheap and easy to obtain, and the structure of zinc-organic complexes is diverse and stable, which is an important practical luminescent material; however, most of the reported zinc-organic complexes so far emit Blue or green fluorescence; at the same time, most metal-organic complex fluorescent materials are generally colorless under natural light

Method used

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  • Orange-red fluorescent zinc coordination polymer with mixed ligands, preparation method of polymer and application of polymer
  • Orange-red fluorescent zinc coordination polymer with mixed ligands, preparation method of polymer and application of polymer
  • Orange-red fluorescent zinc coordination polymer with mixed ligands, preparation method of polymer and application of polymer

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Embodiment 1

[0033] Embodiment 1 Preparation of coordination polymer of the present invention

[0034] Take material according to the following specific mass or volume: Htpc (8.3mg, 0.03mmol), H 3 ntb (11.8mg, 0.03mmol), Zn (NO 3 ) 2 ·6H 2 O (17.8 mg, 0.06 mmol), CH 3 CN (2mL), H 2 O (8 mL). Put the above materials in a 25mL reaction kettle, stir for 0.5-1.5h, put the reaction system in a constant temperature oven at 140°C, react for 6 days, and cool it to room temperature naturally, and observe orange-red rod-shaped crystals, filter them out from the mother liquor, Wash with distilled water and dry naturally ( figure 2 ).

[0035] The infrared spectrum of the crystal sample was taken by Nicolet Impact 410FTIR spectrometer with KBr as the base at 400-4000cm -1 range (see image 3 ). Carry out powder diffraction test with Shimadzu XRD-6100 type X-ray diffractometer, the peak of test collection of spectra matches the peak energy of crystal structure simulation collection of collec...

Embodiment 2

[0045] The preparation of embodiment 2 complexes of the present invention

[0046] Get material according to the following specific quality or volume: Htpc (41.6mg, 0.15mmol), H 3 ntb (11.8mg, 0.03mmol), Zn (NO 3 ) 2 ·6H 2 O (26.8 mg, 0.09 mmol), CH 3 CN (3mL), H 2 O (7 mL).

[0047] The above materials were placed in a 25mL reactor, stirred for 0.5-1.5h, reacted in a constant temperature oven at 150°C for 4 days, and cooled to room temperature naturally to obtain crystals, which were filtered out from the mother liquor, washed with distilled water, and dried naturally.

[0048] The X-ray powder diffraction data comparison of product (see Figure 4 ), the obtained data is similar to that of Example 1, illustrating that the crystal structure made by Example 2 does not change and the product has high purity.

[0049] This embodiment is repeated many times, obtain [Zn according to actual production 5 (tpc) 3 (ntb)(Hntb) 2 (H 2 O) 2 ] n The mass of 10.6mg ~ 14.7mg, ba...

Embodiment 3

[0050] The preparation of embodiment 3 complexes of the present invention

[0051] Take material according to the following specific mass or volume: Htpc (8.3mg, 0.03mmol), H 3 ntb (11.8mg, 0.03mmol), Zn (NO 3 ) 2 ·6H 2 O (44.6 mg, 0.15 mmol), CH 3 CN (5mL), H 2 O (5 mL).

[0052] The above materials were placed in a 25mL reactor, reacted in a constant temperature oven at 160°C for 7 days, and then cooled to room temperature naturally to obtain red crystals, which were filtered out from the mother liquor, washed with distilled water, and dried naturally.

[0053] The X-ray powder diffraction data comparison of product (see Figure 4 ), the obtained data is similar to that of Example 1, indicating that the crystal structure obtained in Example 3 does not change and the product has high purity.

[0054] This embodiment is repeated many times, obtain [Zn according to actual production 5 (tpc) 3 (ntb)(Hntb) 2 (H 2 O) 2 ] n The mass of 8.5mg ~ 11.8mg, based on H 3 The...

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Abstract

The invention belongs to the field of advanced luminescence materials, and particularly relates to an orange-red fluorescent zinc coordination polymer with mixed ligands, a preparation method of the polymer and an application of the polymer. The polymer takes a single-core cluster [ZnN3(CO2)] (formula VII) and a double-core cluster [Zn2N3(CO2)3(H2O)] (formula VIII) as joints, the joints are connected through organic ligands tpc<-> (formula IV), Hntb2<-> (formula V) and ntb3<-> (formula VI) to form a two-dimensional layered coordination polymerization structure, the color of a crystal sample isorange red under natural light and ultraviolet light of 365 nm, a solid fluorescent spectrum has double emission peaks (578nm and 654nm), the polymer is provided with a typical colored fluorescent material, and a complex aqueous solution has absorption peaks in a visible light area. By the aid of characters and the preparation method of the polymer, the polymer can be used for preparation of novel light-sensitive materials, pigments or coatings and the like, and the polymer has positive significance and values in the aspects of development and application of novel optical materials, related industrial transformation and upgrading and the like.

Description

technical field [0001] The invention belongs to the field of advanced luminescent materials, and in particular relates to an orange-red fluorescent zinc coordination polymer containing mixed ligands, a preparation method and application thereof. Background technique [0002] Photoluminescent materials, which can absorb high-energy photons to produce low-energy visible light, have been widely used in many fields such as lighting and display; among them, colored fluorescent materials refer to materials that can not only reflect part of the visible light in sunlight, but also absorb ultraviolet rays. It emits visible light, and its color is more vivid under sunlight or natural light, and it is a popular type in the field of luminescent materials and pigments (paints or dyes). [0003] Metal-organic complexes (including coordination polymers) light-emitting crystal materials with precise electronic structures are the most widely studied advanced functional materials, which have ...

Claims

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Application Information

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IPC IPC(8): C07F3/06C08G83/00C09K11/06G01N21/64C08L33/12C08L87/00C08F120/14C08F2/44
Inventor 黄坤林张如意陈新郭媛媛吴越夏刚张明星
Owner CHONGQING NORMAL UNIVERSITY
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