化学
荧光
锌
单线态氧
光化学
量子产额
胺气处理
酞菁
光敏剂
卤素
吸收(声学)
有机化学
氧气
物理
量子力学
烷基
声学
作者
Xinqiao Guan,Ruotao Guo,Le Xu,Qiuhao Ye,Hongjie Yu,Guowei Liu,Haijian Wu,Kuizhi Chen,Yiru Peng
标识
DOI:10.1016/j.ica.2022.120995
摘要
NIR-I region absorbing dyes with higher tissue penetration, lower auto-fluorescence, minimum photodamage to living tissues, and higher detection sensitivity are attracted great interesting in biological applications. In this paper, three novel NIR I absorbing halogenated phenylamino zinc (II) phthalocyanines have been firstly synthesized through a simple and practical method. They were obtained by condensation of corresponding halogenated phenylamino phthalonitriles. Halogenated phenylamino phthalonitriles were prepared by direct amination of halogenated boronic acids with nitro-phthalonitriles through a reductive molybdenum catalyzed method. The UV/Vis and fluorescence spectra of three halogenated phenylamino zinc phthalocyanines are within NIR-I region because of electron-donating conjugation effect of amine groups. In addition, the effect of substitution terminal halogen atoms as well as α/β substitution position on the UV/Vis and fluorescence spectra of three phthalocyanines were compared. Of three phthalocyanines, 3-BrZnPc with bromo-phenylamino substitution at α position possessed the longest Q-band absorption at 767 nm and fluorescence emission wavelength at 785 nm as well as the highest singlet oxygen quantum yield.
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