标题:Modulate the structures and photophysical properties of pyrene-based far-red fluorescent cationic dyes by regio-effect
作者:Ding, Zhe; Tian, Minggang; Guo, Lifang; Liu, Zhi-qiang; Yu, Xiaoqiang
作者机构:[Ding, Zhe; Tian, Minggang; Guo, Lifang; Liu, Zhi-qiang; Yu, Xiaoqiang] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R Ch 更多
通讯作者:Liu, ZQ;Yu, XQ;Liu, Zhiqiang
通讯作者地址:[Liu, ZQ; Yu, XQ]Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China.
来源:SENSORS AND ACTUATORS B-CHEMICAL
出版年:2018
卷:276
页码:331-339
DOI:10.1016/j.snb.2018.08.075
关键词:Pyrene; Regioisomer; Far-red fluorescent dye; Fluorescent imaging
摘要:Two series of regioisomeric mono-substituted far-red fluorescent pyrene-indolium and pyrene-pyridinium conjugated dyes were synthesized, and their structures were ambiguously determined by single crystal X-ray diffractions. The photophysical properties of these pyrene-containing dyes in several solvents were investigated to figure out the modulation by changing the site of substituent on the pyrene moiety. The 4-substituted pyrene dyes Py-4 and PP-4 exceptionally demonstrated remarkable fluorescence quantum yield and much larger Stokes shift than their regioisomers (Delta(nu) over tilde of PP-4 is 7732 cm(-1) in acetonitrile). Preliminary cell staining and fluorescent imaging experiments indicated that t-Bu-Py-4 could be used as mitochondrial probe with good selectivity and low cytotoxicity.
收录类别:EI;SCOPUS;SCIE
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85052470668&doi=10.1016%2fj.snb.2018.08.075&partnerID=40&md5=17ba047957d13973522fa819426af4f8
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