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Cu2I2 binuclear cluster complex luminescent material and pyridine fluorescent sensor thereof

A luminescent material and fluorescent sensing technology, applied in the fields of luminescent materials, fluorescent sensing materials, and photoluminescent materials, can solve the problems of high price, ignoring the actual sensing and detection quantification, and low cost, and achieve cheap purification and good solubility and thermal stability, easy purification effect

Pending Publication Date: 2022-08-02
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, as mentioned in the article, current researchers in this field usually only study the molecular mechanism of this phenomenon, while ignoring the application requirements such as quantitative and low cost of actual sensing and detection.
In particular, it needs to be pointed out that the platinum and gold used in the reported complexes are expensive, and to meet the low-cost requirements of the application, it is necessary to start with ordinary metals

Method used

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  • Cu2I2 binuclear cluster complex luminescent material and pyridine fluorescent sensor thereof
  • Cu2I2 binuclear cluster complex luminescent material and pyridine fluorescent sensor thereof
  • Cu2I2 binuclear cluster complex luminescent material and pyridine fluorescent sensor thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Synthesis of Binuclear Cuprous Iodide Complex Luminescent Materials (m-Tol 3 P) 2 CuI 2 Cu(m-Tol 3 P) is a polycrystalline powder based on cuprous iodide and tris(m-methylphenyl)phosphine (abbreviated as m-Tol 3 P) These two substances are used as raw materials, and are prepared according to the following methods:

[0047] Weigh 0.076g (0.4mmol) CuI and 0.183g (0.6mmol) m-Tol 3 P (molar ratio of raw materials 2:3), placed in the ball mill jar, added 0.5 ml of acetonitrile as a liquid grinding aid, and then added 17g ball mill balls; agate ball mill balls are divided into two types, and their diameters are 10mm respectively and 6mm, the quantity ratio of the two types of ball milling balls used is 1:5, and the ratio of ball milling balls to raw materials is 66:1; the speed of the ball mill is set to 240r / min, and the time is set to 240min; the ball mill is placed in a vacuum oven for 30 After drying under the condition of degrees Celsius, the product polycrystalline...

Embodiment 2

[0049]Synthesis of Binuclear Cuprous Iodide Complex Luminescent Materials (m-Tol 3 P) 2 CuI 2 Cu(m-Tol 3 P) single crystal: Weigh 0.2 mmol (38 mg) of CuI and 0.4 mmol (108 mg) of m-Tol respectively according to the stoichiometric ratio of 1:2:1 3 P and 0.2 mmol (28 mg) of DMMP. Dissolve the three medicines in 5 mL of acetonitrile, 5 mL (3 mL of acetonitrile + 2 mL of CH) 2 Cl 2 ) mixed solvent and 5 mL of acetonitrile, and stirred for 10 min to completely dissolve the drug, which were marked as solutions 1, 2, and 3, respectively. Solution 1 is a colorless and transparent solution, solution 2 is a colorless and transparent solution, and solution 3 is a yellow and transparent solution. First mix solution 2 and solution 1 to obtain a colorless and transparent solution A, and then add solution 3 to solution A to obtain a yellow solution. After fully reacting for 15min, filter, then spin-evaporate the filtrate until powder is precipitated and then filter, place the filtrate...

Embodiment 3

[0051] Supported binuclear cuprous iodide complex luminescent material (m-Tol 3 P) 2 CuI 2 Cu(m-Tol 3 Preparation of the fluorescence sensing film of P) and its atmosphere response: Weigh 0.050 g of the complex luminescent material (m-Tol 3 P) 2 CuI 2 Cu(m-Tol 3 P), it was completely dissolved in 7 mL of dichloromethane, the solution was pale yellow, clear and transparent, filtered. The cellulose film is made into a size and shape suitable for application by cutting and other methods, as the test paper base paper used in the subsequent process; an appropriate amount of filtrate is taken, and the filtrate is coated on the test paper base paper by printing, dipping or brushing; wherein The test paper prepared by the dip coating method needs to be pre-dried with a roller press, and then the coated test paper is dried under vacuum conditions (40 ° C, 30 min), and the fluorescence sensing film (fluorescent test paper) is obtained after drying; The sensing film was placed in ...

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Abstract

The invention discloses a binuclear cuprous iodide complex luminescent material, a preparation method thereof and fluorescence sensing application of the material to pyridine. The structural formula of the luminescent material disclosed by the invention is (m-Tol3P) 2CuI2Cu (m-Tol3P), wherein the m-Tol3P is an electrically neutral phosphine ligand tri (m-methylphenyl) phosphine; the CuI coordination compound is prepared from CuI and a ligand through a coordination reaction. The luminescent intensity of the material is weak, but after the material is placed in a pyridine atmosphere, the fluorescent sensing response characteristic similar to that of lightening is quickly presented, and the luminescent wavelength generates blue shift; the material is easy to prepare and has good solubility and stability, a paper-based loaded or polymer-doped fluorescent sensing film is also easy to prepare, and the film also rapidly shows fluorescent lightening response capable of being observed by naked eyes in a pyridine-containing atmosphere, shows fluorescent sensing performance of rapid selective response and sensitive recognition, and has good application prospects. And the test paper can be flexibly manufactured into various required specifications, and can be used as a portable fluorescent sensing test paper device to be applied to detection of pyridine.

Description

technical field [0001] The present invention relates to the technical field of luminescent materials, to the field of photoluminescent materials, and in particular to the field of fluorescent sensing materials. Background technique [0002] Volatile Organic Compounds are referred to as VOCs. The VOC class is numerous, unstable, and ubiquitous. They include man-made chemical compounds and naturally occurring ones. Most volatile organic compounds (VOCs) are transmitted as vapors. In my country and many countries in the world, man-made VOC emissions are subject to legal sanctions. Although harmful VOCs are usually not acutely toxic, exposure to different concentrations of VOCs can have varying degrees of health effects over a longer period of time. However, because the VOC concentration in the environment is usually low, and the symptom development is usually slow and imperceptible, there are many difficulties and inconveniences in the current research on VOCs and their eff...

Claims

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Application Information

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IPC IPC(8): C07F9/50C09K11/02C09K11/06G01N21/64
CPCC07F9/5045C09K11/06C09K11/025G01N21/643C09K2211/188C09K2211/1007C09K2211/1014Y02A50/20
Inventor 柴文祥戴泽琦宋莉孙梁鉴杨祎欣郭冰戴鼎秋
Owner CHINA JILIANG UNIV
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