文献类型：期刊文献

英文题名：Tunable Photoluminescence Including White-Light Emission Based on Noncovalent Interaction-Locked N,N-Disubstituted Dihydrodibenzo[a,c]phenazines

作者：Wang, Jie[1,2];Yao, Xuyang[1,2];Liu, Yang[1,2];Zhou, Haitao[1,2];Chen, Wei[1,2];Sun, Guangchen[1,2];Su, Jianhua[1,2];Ma, Xiang[1,2];Tian, He[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Joint Int Res Lab Precis Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2018

卷号：6

期号：12

外文期刊名：ADVANCED OPTICAL MATERIALS

收录：;EI(收录号：20181905174120);WOS:【SCI-EXPANDED(收录号:WOS:000435765200012)】；

基金：J.W. and X.Y. contributed equally to this work. This work was financially supported by the National Natural Science Foundation of China (NSFC) (21788102, 21722603, 214210004, and 21476075), Programme of Introducing Talents of Discipline to Universities (B16017), the Innovation Program of Shanghai Municipal Education Commission, and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：phenazines; sulfonatocalixarene; supramolecular assembly; vibration-induced emission

摘要：Utilizing supramolecular assembling system to achieve tunable photoluminescence emission has become an important method for the development of light-emitting materials, which could bring out intriguing photophysical properties out of the luminophores themselves without a demanding design and tedious chemical synthesis. In the last few years, vibration-induced emission (VIE) molecules, with dual photoluminescence emissions and large Stokes shift, have shown their talent in generating tunable fluorescence and potential in fabricating novel light-emitting materials. However, little attention has been devoted to explore the attractive properties of VIE molecules in supramolecular self-assembling systems up to now. Herein, the first example of a supramolecular assembling system composed of a water-soluble VIE molecule N,N-diphenyl-dihydrodibenzo[a,c]phenazines derivative (DPAC-AB) and bis-p-sulfonatocalix[4]arene (BSC4) is introduced. Based on noncovalent interactions including hydrophobic interaction and host-guest interaction between DPAC-AB and BSC4, tunable fluorescence emissions from orange-red to white (Commission Internationale de L'eclairage (CIE) coordinates (0.32, 0.37)) to blue are achieved by simple addition of different amounts of BSC4 to the solution of DPAC-AB. Additionally, a competitive guest acetylcholine is utilized to recover the nearly orange-red fluorescence emission. This strategy to efficiently control the emission of VIE molecules through supramolecular assembling based on reversible noncovalent interactions opens new avenues in developing tunable light-emitting materials.