And Napos; 1, Napos; 3, the Napos is selected; application of 5-tri ((E)-4-(diphenylamino) benzylidene) benzene-1, 3, 5-tricarbohydrazide as piezo-chromic material

By constructing N'1,N'3,N'5-tris((E)-4-(diphenylamino)benzyl)phenyl-1,3,5-tricarbonylhydrazine molecular gel, the sensitivity and stability issues of mechanochromic materials were solved, and reversible pressure-induced color change performance was achieved, which can be applied to fields such as information encryption, intelligent display and environmental monitoring.

CN120966455APending Publication Date: 2025-11-18GUANGDONG INST OF ARTS & SCI
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Patent Information

Application Number
CN202510844458.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-23
Publication Date
2025-11-18

AI Technical Summary

Technical Problem

Existing mechanochromic materials suffer from insufficient sensitivity, irreversible color change, and poor stability, making it difficult to detect minute deformations, and there is a lack of small molecule compound piezochromic materials.

Method used

Using the compound N'1,N'3,N'5-tris((E)-4-(diphenylamino)benzyl)phenyl-1,3,5-tricarbonylhydrazine (TBTCH), a triphenylamine-benzyl-1,3,5-tricarbonylhydrazine molecular gel with aggregation-induced emission was constructed by introducing hydrazine hydrate and trimethylbenzene-1,3,5-tricarboxylic acid, achieving multifunctional optical properties and reversible pressure-induced color-changing properties.

Benefits of technology

The compound TBTCH exhibits reversible color change under pressure and can be applied to information encryption, smart displays, biosensing, and environmental monitoring. It achieves reversible encryption and decryption of information by applying pressure and heating, and has polycrystalline properties and high fluorescence efficiency.

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Abstract

The invention provides an application of N '1, N' 3, N '5-tri ((E)-4-(diphenylamino) benzylidene) benzene-1, 3, 5-tricarbohydrazide (TBTCH) as a piezo-chromic material. The invention provides a novel application of the compound TBTCH, and research shows that the compound has a polycrystalline state property and a piezochromic property, and has two single crystal structures TBTCH-c and TBTCH-g which emit cyan and green fluorescence under different wavelengths; under the action of pressure, the TBTCH-g is converted into an amorphous state from an original crystalline state and is converted into a yellow state sample, and the TBTCH-g can recover to the original state after being fumigated, so that the TBTCH-g has reversible piezochromism performance; and the TBTCH-c changes color under the action of pressure and cannot recover to the original state through a conventional fumigation method, but the TBTCH-g and the TBTCH-c can realize conversion between the TBTCH-g and the TBTCH-c through recrystallization. Therefore, the compound TBTCH can be used as a photochromic material to be applied to the fields of information encryption, intelligent display, biosensing, environmental monitoring and the like.
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