A new class of light-stimuli-responsive styrene compounds and their preparation and application

Abstract

The invention discloses a new type of light-stimulus-responsive styrenic compound and its preparation and application. A new type of styrenic compound is constructed by using the characteristic that the styrene structural unit presents different response performances to light-stimuli under aerobic and anaerobic environments. Light-stimulus-responsive materials can realize specific responses to the presence or absence of oxygen; combining the styrene compounds disclosed in the present invention with phosphorescent iridium complexes can make the response signal directly visible to the naked eye by using its rich charge transfer mode. identify. Compared with the prior art, the synthesis method disclosed in the present invention is simple, the material response is sensitive, and the response signal can be directly recognized by the naked eye, which provides a new idea for expanding stimulus-responsive materials.

Description

Technical field: [0001] The invention belongs to the technical field of organic photoelectric materials, and in particular relates to the preparation of a class of novel styrene compounds and their application in light stimulus response. Background technique: [0002] Stimuli-responsive materials refer to a class of materials that can change their physical or chemical properties under external physical and chemical stimuli, such as light, electricity, force, temperature, and chemical substances. When external stimuli act on stimuli-responsive materials, the electronic structure of the material itself will specifically change, and this change can be perceived by human eyes or modern analytical instruments. Stimuli-responsive materials have been widely used in smart photovoltaic windows, information display and encryption, biosensing and imaging, and smart biofunctional materials, and have good market application prospects. [0003] Among many stimulating factors, light stimu...

AI Technical Summary

Problems solved by technology

[0004] Transition metal iridium complexes have good photophysical properties, and the use of phosphorescent iridium complexes to construct stimuli-responsive materials has great advantages. On the one hand, because iridium complexes have abundant electronic transition states, such as metal-to-ligand charge transfer (MLCT), Ligand-to-metal center charge transfer (LMCT), ligand-to-ligand charge transfer (LLCT) and ligand-internal charge transfer (ILCT), etc., the properties of these excited states generally depend on the chemical structure and The triplet energy level of the ligand, the chemical environment of the complex, and the interaction between molecules, when external stimuli are applied, will cause a change in the excited state, thereby affecting a series of changes in the photophysical properties of the complex.

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