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Amphiphilic platinum (II) complex and preparation thereof and application thereof to construction of white light-emitting system

A complex and amphiphilic technology, applied in platinum group organic compounds, platinum organic compounds, luminescent materials, etc., can solve the problem of low quantum yield, achieve excellent luminescence performance, simple preparation method, and expand the scope of application Effect

Inactive Publication Date: 2019-02-15
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although our research group has successfully prepared a single-component white light-emitting system (patent publication number CN 107118761A: white light-emitting material based on amphiphilic platinum complexes), the quantum production of the single-component white light-emitting system prepared in the previous work Lower rate (1.1%)

Method used

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  • Amphiphilic platinum (II) complex and preparation thereof and application thereof to construction of white light-emitting system
  • Amphiphilic platinum (II) complex and preparation thereof and application thereof to construction of white light-emitting system
  • Amphiphilic platinum (II) complex and preparation thereof and application thereof to construction of white light-emitting system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Synthesis of compounds of formula Ⅰ-1

[0035] Under nitrogen protection, 369mg (4mmol) propargylamine hydrochloride, 1.3mL triethylamine and 40mL methylene chloride were successively added into a 250mL three-necked flask; 897mg (2mmol)) cholesterol chloroformate was added successively in a constant pressure funnel and 100 mL of dichloromethane were added dropwise into a three-necked flask under ice-bath conditions and stirred, and stirred at room temperature for 12 hours after the dropwise addition was completed. After the reaction was finished, the reaction solution was washed three times with distilled water, the organic phases were combined, and after drying over anhydrous sodium sulfate, the solvent was evaporated under reduced pressure to obtain a crude product. The volume ratio of the gained crude product to dichloromethane and sherwood oil was 5: The mixed solution of 1 was used as the mobile phase, and silica gel was used as the stationary phase to carry out...

Embodiment 2

[0043] Application of the Amphiphilic Platinum(II) Complex Prepared in Example 1 in the Construction of a White Light Emitting System

[0044] Using the mixture of dimethyl sulfoxide and water with different water contents as solvent, prepare a solution of amphiphilic platinum(II) complex with a concentration of 50 μmol / L, heat at 50-60°C for 1 hour, and cool naturally to room temperature Let stand for 24 hours.

[0045] When the volume concentration of water in the solvent is 30%, 40%, 50% and 60%, the amphiphilic platinum (II) complex solution is excited with a light source with a wavelength of 340 nm at room temperature, and the system can emit white light (fluorescence emission) Spectrum see figure 1 , see the chromaticity coordinate diagram figure 2 ), where the volume concentration of water is 50%, the quantum yield is the highest, which is 5.8%.

[0046] When the volume concentration of water in the solvent is 20%, 70%, 80% and 90% respectively, the amphiphilic plat...

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Abstract

The invention discloses an amphiphilic platinum (II) complex and preparation thereof and application thereof to construction of a white light-emitting system. The complex adopts a structural formulaas shown in the description, in which m is an integer of 3-5 and n is 1 or 2. The amphiphilic platinum (II) complex uses an ether oxygen chain as a hydrophilic part and cholesterol as a hydrophobic part, and has a self-assembly characteristic; and in addition, the preparation method is simple, and a reaction condition is mild. The amphiphilic platinum (II) complex emits white light in dimethyl sulfoxide / water mixed solvents with different water contents, at different temperatures and under different excitation wavelengths; and in addition, the white light-emitting system has the quantum yieldup to 5.8% and is a platinum complex-based one-component white light-emitting material with excellent light-emitting performance.

Description

technical field [0001] The invention belongs to the technical field of preparation of luminescent materials, and in particular relates to an amphiphilic platinum (II) complex with self-assembly function and a preparation method thereof, and to construct a white luminescent system in dimethyl sulfoxide / water solution using the complex . Background technique [0002] In recent years, white light-emitting materials have attracted extensive attention due to their many potential applications in display devices, lighting devices, and sensors. Usually this kind of white luminescent material is doped with two (such as blue and orange) or three (such as red, green and blue) fluorophores, and the emission of the full spectral range is achieved by adjusting the ratio of different components. White luminescent system. However, the method of using multi-component doping to construct a white light-emitting system still has some disadvantages, such as: complicated preparation process, di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/00C09K11/06
CPCC07F15/0086C09K11/06C09K2211/185Y02B20/00
Inventor 刘静杨丹雷海瑞郑宁严军林
Owner SHAANXI NORMAL UNIV
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