文献类型：期刊文献

英文题名：Room-temperature phosphorescence of cucurbit[7]uril recognized naphthalimide derivative

作者：Xu, Lei;Zou, Lei[1];Chen, Hui;Ma, Xiang[1]

机构：[1]East China Univ Sci & Technol, Coll Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China; East China Univ Sci & Technol, Coll Chem & Mol Engn, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2017

卷号：142

起止页码：300

外文期刊名：DYES AND PIGMENTS

收录：;EI(收录号：20171403514963);WOS:【SCI-EXPANDED(收录号:WOS:000401393100040)】；

基金：We acknowledge the financial support from Programme of Introducing Talents of Discipline to Universities (B16017), NSFC/China (21421004, 21476075 and 21272072) and the Fundamental Research Funds for the Central Universities (222201717003).

语种：英文

外文关键词：Room-temperature phosphorescence; Host-guest interaction; Cucurbit[7]uril; Naphthalimide derivative

摘要：It is well known that most purely organic molecules give out no room-temperature phosphorescence due to consuming the energy of molecular vibration, inefficient spin-orbit coupling and easy-quenched radiation relaxation process. Room-temperature phosphorescence emission was presented by the host guest interactions between cucurbit[7]uril and a naphthalimide derivative 2-(4-aminobuty1)-6-bromo1H-benzo[dellsoquinoline-1,3(2H)-dione. This cucurbit[7]uril recognized supramolecular system can emit room-temperature phosphorescence signal in aqueous solution, as well as the 4-bromo-1,8-naphthalic anhydride polymer/cucurbit[7]uril system. The conformation of the complex was established by H-1-H-1 ROESY NMR techniques. The binding patterns and constant of this supramolecular system were well defined, and its photophysical and photochemical properties found in detail as well. (C) 2017 Elsevier Ltd. All rights reserved.