Fluorescent dye based on benzothiadiazole as matrix and application of fluorescent dye

• Main Authors: ZHANG JINYANG, XUE SHUN, YAN LAN, ZOU PING, JIANG XINGXIU, CHEN ZHENGCHENG, LEI XUELI, XU ZHIYI, WANG GUANGTU, YANG RUIZHU
• Format: Patent
• Language: Chinese; English
• Published: 19.04.2024
• Subjects: ADHESIVES; CHEMISTRY; DYES; HETEROCYCLIC COMPOUNDS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; LAKES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MEASURING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; ORGANIC CHEMISTRY; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; PAINTS; PHYSICS; POLISHES; TESTING

The invention discloses a fluorescent dye based on benzothiadiazole as a matrix and application thereof, a benzotriazole ring is introduced into the benzothiadiazole structure matrix to obtain a fluorescent probe of an NIR-II region, and the fluorescent dye has longer fluorescence emission wavelength; an alkyl side chain is introduced into a benzotriazole ring, the stability and the water solubility of a tricyclic structure of benzothiadiazole-triazole can be improved through a (trimethyl) propylammonium group, and through spacer thiophene located between an electron donor and an electron acceptor, the benzothiadiazole-triazole compound has higher quantum yield and can be applied to the field of organic light emitting devices. Therefore, ferric ions in environment and biological samples can be better recognized and detected, and a new thought is provided for detection of Fe < 3 + >. 本发明公开一种基于苯并噻二唑为母体的荧光染料及其应用，其通过对苯并噻二唑结构母体引入苯并三唑环，以获得NIR-II区的荧光探针，具有更长的荧光发射波长；且通过在苯并三唑环引入烷基侧链、(三甲基)丙铵基可提高苯并噻二唑-三唑的三环结构的稳定性及其水溶性，且通