文献类型：期刊文献

英文题名：A Novel Indole Derivative with Superior Photophysical Performance for Fluorescent Probe, pH-Sensing, and Logic Gates

作者：Liu, Hai-Ling[1,2];Zhan, Kan[3];Zhong, Kai-Liang[1];Chen, Xing-Liang[1];Xia, Xing-Hua[2]

机构：[1]Shaoxing Univ, Sch Chem & Chem Engn, Shaoxing 312000, Peoples R China;[2]Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Analyt Chem Life Sci, Nanjing 210023, Peoples R China;[3]Zhejiang Univ Technol, Coll Biotechnol & Bioengn, Hangzhou 310014, Peoples R China

年份：2023

卷号：24

期号：2

外文期刊名：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES

收录：SCI-EXPANDED(收录号：WOS:000917652600001)、、Scopus(收录号：2-s2.0-85146741693)、WOS

基金：This research work was funded by the National Key Research and Development Program of China (2021YFC2102902), the National Natural Science Foundation of China (21804090), the State Key Laboratory of Analytical Chemistry for Life Science (SKLACLS1910), and the Science Research Fund of Shaoxing University (20185008). And The APC was funded by National Natural Science Foundation of China (21804090).

语种：英文

外文关键词：indole; fluorescent; photophysical; pH-sensor; logic gates

外文摘要：An indole-related molecules have been considered as the potential fluorescent probes for biological and electrochemical sensing. However, most of the indole probes have been usually used in a single detection mode. Indolium probes that enable accurate detection in complex environments are rarely reported. Here, four novel indole derivatives including the phenyl group substituted with different functional moieties were designed on the basis of the donor-pi-acceptor (D-pi-A) concept. These derivatives exhibit positive solvatochromism owing to their varied molecular conformations upon contacting to various solvents and the different HOMO-LUMO gaps caused by the difference in electronic push-pull capability of the substituents. Their solid-state fluorescence emissions and multiple chromisms are observed due to the inherent twisted geometries and aggregation modes. In addition, these derivatives show dramatic color and fluorescence responses due to the protonation of the nitrogen and oxygen containing groups, and thus novel colorimetric pH sensors, fluorescent papers and logic gates have been designed.