A kind of fluorenyl oxadiazole iridium complex and its application
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A technology of fluorenyl oxadiazoles and base oxadiazoles, which is applied in the field of fluorenyl oxadiazoles iridium complexes, can solve the problems of weak sensitivity, limited iridium complexes and the like, and achieves low cost of raw materials and simple synthesis method. , the effect of good hole transport and electron transport properties
Active Publication Date: 2021-02-12
NANJING UNIV OF POSTS & TELECOMM
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However, organic dyes generally have the problem of aggregation-induced quenching, that is, the sensitivity is greatly weakened in aqueous solution or in the solid state, which severely limits the application of iridium complexes in the detection of explosives, and if an aggregation-induced luminescent dye is developed, this Problems can be solved
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[0032] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0033] Attached below Figure 1-13 The application principle of the present invention is described in detail.
[0034] A fluorenyl oxadiazole iridium complex of the present invention and its application, its ligand structure is 2-(9,9-dihexylfluorenyl)-5-(2,4,6-trimethyl-benzene base)-1,3,4-oxadiazole, and the auxiliary ligand is 2-pyridinecarboxylic acid. The molecular structures and configurations of this series of materials were characterized by H-NMR and C-NMR spectra. The photophysical properties of the compound were studied by UV absorption spectrum and fluorescence emission spectrum.
[0035]
[0036] The spec...
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Abstract
The invention discloses a fluorenyl oxadiazole iridium complex and its application. The structural formula of the fluorenyl oxadiazole iridium complex is shown in the following formula: wherein, R 2 , R 3 is the alkyl chain, R 1 For methyl. The prepared complex has better hole transport and electron transport properties, and can be used in the field of organic light-emitting diodes (OLEDs) and in the detection of nitro explosives.
Description
technical field [0001] The invention belongs to the field of organic luminescent materials, and in particular relates to a fluorenyl oxadiazole iridium complex and an application thereof. Background technique [0002] In recent years, nitro explosives are posing a huge threat to international security and the ecological environment, among which nitroaromatic compounds, such as: dinitrobenzene (DMB), trinitrotoluene (TNT), 2,4-di Nitrotoluene (4-DNT), 2,6-dinitrotoluene (2,6-DNT), 2,4,6-trinitrophenol (PA), etc., have strong explosive power and strong toxicity (belonging to carcinogens), so how to efficiently detect these explosives is called one of the hot spots of scientific research. Traditional detection methods, such as gas chromatography and Raman spectroscopy, have certain problems in terms of stability, selectivity, and usability. Fluorescence sensing has been widely studied because of its simple operation, fast response, and high sensitivity, and it is expected to b...
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