Tetraphenylethylene macrocyclic compound with mechanofluorescent color-changing performance, synthesis method and use

A technology of macrocyclic compounds and tetraphenylethylene, applied in chemical instruments and methods, organic chemistry, color-changing fluorescent materials, etc., can solve problems such as non-luminescence, limited applications, and weakened fluorescence
CN109776483BInactive Publication Date: 2021-04-20SOUTH CHINA NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTH CHINA NORMAL UNIVERSITY
Publication Date
2021-04-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a tetraphenylethylene macrocyclic compound with mechanofluorescent color-changing performance. The compound connects alkyl chain structural units through its own strong fluorescence property, so that it has the performance of fluorescence color difference before and after the pressure of the solid is increased, and can be used as Fluorescent probes recognize cyclic carboxylic acids. Described tetraphenylethylene macrocyclic compound, its structural formula is as shown in formula 1 or formula 2: in the formula: connecting bridge R is 1,4-butylene (-(CH 2 ) 4 ‑), 2,2,3,3‑tetrafluoro‑1,4‑butylene (‑CH 2 (CF 2 ) 2 CH 2 ‑), 1,5‑pentylene (‑(CH 2 ) 5 ‑), 2,2,3,3,4,4‑hexafluoro‑1,5‑pentylidene (‑CH 2 (CF 2 ) 3 CH 2 ‑), 1,6‑hexylene (‑(CH 2 ) 6 ‑) or 2,2,3,3,4,4,5,5‑octafluoro‑1,6‑hexylene (‑CH 2 (CF 2 ) 4 CH 2 -).
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Description

technical field

[0001] The invention relates to the field of organic solid fluorescent mechanochromic materials, in particular to a tetraphenylethylene macrocyclic compound with mechanofluorochromic properties, a synthesis method and an application thereof. Background technique

[0002] Due to the fact that the fluorescence of traditional fluorescent molecules will weaken at high concentrations, or even not emit light, thus limiting their applications in the fields of display devices, sensors, and optical devices. The phenomenon of weakened fluorescence and non-luminescence of traditional fluorescent molecules under aggregation conditions is called the "concentration quenching" effect, also known as "aggregation-caused quenching (ACQ)". With the rapid development of modern science and technology, it is urgent to make breakthroughs in fluorescent materials.

[0003] In 2001, Tang Benzhong's research group reported that some silole molecules hardly emit light in solution, but...

Claims

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