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A kind of cadmium salt fluorescent functional coordination material and preparation method thereof

A coordination and cadmium salt technology, which is applied in the direction of luminescent materials, chemical instruments and methods, cadmium organic compounds, etc., can solve the problem of single coordination mode and connection configuration, poor stability of coordination materials, and small number of metal sites, etc. problem, to achieve the effect of improving structure diversification and performance stability, high stability, and simple and feasible synthesis method

Active Publication Date: 2018-07-03
JIANGHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The naphthalene system has great conjugation characteristics. Naphthalene dioic acid has been reported as a bridging ligand to construct fluorescent coordination materials. However, its coordination mode and connection configuration are relatively simple. As a bridging ligand, it has the following disadvantages: 1) The number of metal sites that can be connected is small; (2) Pure carboxyl coordination will lead to poor stability of coordination materials; (3) The coordination mode is relatively limited

Method used

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  • A kind of cadmium salt fluorescent functional coordination material and preparation method thereof
  • A kind of cadmium salt fluorescent functional coordination material and preparation method thereof
  • A kind of cadmium salt fluorescent functional coordination material and preparation method thereof

Examples

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Embodiment 1

[0032] Weigh 6-(1H-tetrazol-5-yl)-2-naphthoic acid and cadmium nitrate at a molar ratio of 2:1, dissolve in 6mL distilled water and 2mL dimethylformamide, stir at room temperature for 30 minutes, and then mix The solution was lined with polytetrafluoroethylene, installed in a stainless steel reaction kettle and placed in an oven at 140°C, cooled after 12 hours, filtered to obtain colorless crystals, filtered and washed with distilled water to obtain the final product. The yield is about 45%. Elemental analysis results: Anal.Calcd for C 12 h 8 CdN 4 o 3 : H 2.19%, C 39.10%, N 15.20%; found H 2.35%, C 39.54%, N 15.72%. The elemental analysis results show that the structure and composition of the substance are consistent with those measured by the single crystal diffraction instrument and the elemental analysis instrument, which also fully demonstrates the correctness of the composition.

[0033] Wherein, the preparation method of 6-(1H-tetrazol-5-yl)-2-naphthoic acid is as ...

Embodiment 2

[0038] Weigh 6-(1H-tetrazol-5-yl)-2-naphthoic acid and cadmium nitrate at a molar ratio of 2:1, dissolve in 6mL distilled water and 2mL dimethylformamide, stir at room temperature for 30 minutes, and then mix The solution was lined with polytetrafluoroethylene, installed in a stainless steel reaction kettle and placed in an oven at 135°C, cooled after 10 hours, filtered to obtain colorless crystals, filtered and washed with distilled water to obtain the final product. The yield is about 46%. Elemental analysis results: Anal.Calcd for C 12 h 8 CdN 4 o 3 : H 2.19%, C 39.10%, N 15.20%; found H 2.35%, C 39.54%, N 15.72%.

[0039] Wherein, the preparation method of 6-(1H-tetrazol-5-yl)-2-naphthoic acid is as follows, and the synthetic route schematic diagram is as follows Figure 4 Shown:

[0040] 1) Place methyl 6-bromo-2-naphthoate and CuCN in pure dimethylformamide (the molar ratio of methyl 6-bromo-2-naphthoate: CuCN: dimethylformamide is 0.9:1.1 :38), at a temperature o...

Embodiment 3

[0044]Weigh 6-(1H-tetrazol-5-yl)-2-naphthoic acid and cadmium nitrate at a molar ratio of 2:1, dissolve in 6mL distilled water and 2mL dimethylformamide, stir at room temperature for 30 minutes, and then mix The solution was lined with polytetrafluoroethylene, installed in a stainless steel reaction kettle and placed in an oven at 145°C, cooled down after 14 hours, filtered to obtain colorless crystals, filtered and washed with distilled water to obtain the final product. The yield is about 45%. Elemental analysis results: Anal.Calcd for C 12 h 8 CdN 4 o 3 : H 2.19%, C 39.10%, N 15.20%; found H 2.35%, C 39.54%, N 15.72%.

[0045] Wherein, the preparation method of 6-(1H-tetrazol-5-yl)-2-naphthoic acid is as follows, and the synthetic route schematic diagram is as follows Figure 4 Shown:

[0046] 1) Place 6-bromo-2-naphthoic acid methyl ester and CuCN in pure dimethylformamide (6-bromo-2-naphthoic acid methyl ester: CuCN: the molar ratio of dimethyl formamide is 1.1:1.3 ...

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Abstract

The invention discloses a cadmium salt fluorescent functional coordination material and a preparation method thereof. The preparation method of the cadmium salt fluorescent functional coordination material comprises the following steps: 1) preparing a reaction solution: mixing 6-(1H-tetrazole-5 -base)-2-naphthoic acid and cadmium salt are added to the solvent, fully stirred and dissolved under normal temperature conditions to obtain a reaction solution; 2) crystallization reaction: the reaction solution obtained in step 1) is placed in an oven with a temperature of 135-145°C After reacting for 10-14 hours, massive colorless crystals are obtained, and then filtered and washed in sequence to obtain the cadmium salt fluorescent functional coordination material. The cadmium salt fluorescent functional coordination material of the present invention is composed of cadmium salt and self-assembled coordination of 6-(1H-tetrazol-5-yl)-2-naphthoic acid, which exhibits high stability to humidity and temperature , and can exhibit strong fluorescence properties.

Description

technical field [0001] The invention relates to the technical field of fluorescent functional coordination materials, in particular to a cadmium salt fluorescent functional coordination material and a preparation method thereof. Background technique [0002] Functional coordination materials are favored and concerned by many material scientists because of their adjustable structure-performance relationship. Fluorescent functional coordination materials have become a research hotspot in this type of materials due to their advantages such as clear and adjustable structure and controllable fluorescence performance. The construction of fluorescent functional coordination materials generally needs to contain two parts: the first part is metal ions with potential fluorescent properties (such as d 10 Electronic configuration), rare earth ions, etc.; the second part is an organic ligand with a conjugated system. Among them, cadmium salt, as a precursor for assembling fluorescent c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F3/08C07D257/04C09K11/06
CPCC07D257/04C07F3/08C09K11/06C09K2211/188
Inventor 余凡李艾华胡思前刘继延
Owner JIANGHAN UNIVERSITY
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