Efficient green phosphorescence and tribo-luminescence material synthesis and application

A green phosphorescence and triboluminescence technology, which is applied to luminescent materials, compounds of group 7/17 elements of the periodic table, organic compounds of group 7/17 without C-metal bonds, etc., can solve the problem of low storage capacity, high price, Toxicity and other issues

CN104447873AActive Publication Date: 2015-03-25FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-03-25

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Abstract

The invention discloses synthesis, a crystal structure, a luminescence property and application of a divalent manganese complex with efficient green phosphorescence and tribo-luminescence performances. By introducing bidentate chelate organic phosphine oxide with larger steric hindrance and excellent sensitization capability and taking a halide ion with a heavy atom effect as a ligand, a mononuclear Mn (II) complex with four coordination geometries is synthesized. Based on test results, the complex is a novel green phosphorescence luminescent material with high stability and luminous efficiency and long luminescence lifetime at room temperature, and simultaneously, the material further has tribo-luminescence performance at a crystal state. Therefore, the material can be applied to manufacturing phosphorescence luminescent devices, pressure-sensing luminous bodies, pressure detection sensors and display elements of other scientific instruments.
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Description

technical field

[0001] The invention relates to the synthesis and application of a class of divalent manganese metal complexes with high-efficiency green phosphorescence and triboluminescent properties at room temperature. This type of complex is composed of the bidentate chelating organophosphorus oxide ligand bis[(2-phenylphosphine oxide) phenyl] ether (DPEPO) and the divalent metal manganese halide MnX 2 (X=Cl, Br, I) is constructed, and the molecular formula is: [MnX 2 (DPEPO)]. Background technique

[0002] Efficient phosphorescent materials have attracted much attention due to their potential applications in organic electroluminescent devices (OLEDs), chemical sensors, and biomarkers. Metal complex phosphorescent materials have the advantages of small size, high luminous efficiency, simple synthesis, and easy modification. At present, metal complex phosphorescent materials with high-efficiency luminescence at room temperature are mainly heavy transition metals such a...

Examples

Embodiment Construction

[0024] The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

[0025] Preparation 1–3

[0026] [MnCl 2 (DPEPO)] EtOH (1). Weigh anhydrous MnCl 2 (0.4mmol) and POP (0.2mmol), add 6mL of absolute ethanol, and add 0.1mL of 30% hydrogen peroxide, put it into a closed 25mL reaction kettle, heat up to 120 ° C, keep the temperature for two days, then cool down to room temperature, After filtration, the filtrate was placed in an ether atmosphere for several days, and light green blocky crystals were generated. Through X-ray single crystal diffraction analysis, it is determined that the crystal is [MnCl 2 (DPEPO)] · EtOH. Among them, the molecular structure of POP and DPEPO is as attached figure 1 shown.

[0027] [MnBr 2 (DPEPO)] EtOH (2). Weigh MnBr 2 4H 2 O (0.4mmol) and POP (0.2mmol), add 6mL of absolute ethanol, and add 0.1mL of 30% hydrogen peroxide, put it into a closed 25mL reactio...