文献类型：期刊文献

英文题名：Multicolor Photoluminescence Including White-Light Emission by a Single Host-Guest Complex

作者：Zhang, Qi-Wei[1,2,3];Li, Dengfeng[1,2];Li, Xin[4];White, Paul B.[3];Mecinovic, Jasmin[3];Ma, Xiang[1,2];Agren, Hans[4];Nolte, Roeland J. M.[3];Tian, He[1,2]

机构：[1]East China Univ Sci & Technol, Coll Chem & Mol Engn, Key Lab Adv Mat, Meilong Rd 130, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Coll Chem & Mol Engn, Inst Fine Chem, Meilong Rd 130, Shanghai 200237, Peoples R China;[3]Radboud Univ Nijmegen, Inst Mol & Mat, Heyendaalseweg 135, NL-6525 AJ Nijmegen, Netherlands;[4]KTH Royal Inst Technol, Sch Biotechnol, Div Theoret Chem & Biol, SE-10691 Stockholm, Sweden

年份：2016

卷号：138

期号：41

起止页码：13541

外文期刊名：JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

收录：;EI(收录号：20164302953726);WOS:【SCI-EXPANDED(收录号:WOS:000385992100022)】；

基金：Support from the Programme of Introducing Talents of Discipline to Universities (B16017), the NSFC/China (21421004, 21476075 and 21272072), the National Basic Research 973 Program, the Fundamental Research Funds for the Central Universities,The Netherlands Ministry of Education, Culture and Science (Gravitation Program 024.001.035), and the European Research Council (ERC Advanced Grant ALPROS-290886) is gratefully acknowledged. X.L. and H.A. thank the Swedish National Infrastructure for Computing (SNIC) for providing computational resources for project SNIC 2015/16-10. The authors also thank Prof. Stefan C. J. Meskers from the Eindhoven University of Technology for the CPL measurements and Drs. Zhiyun Zhang, Boxue Tian, and Jialiang Xu for helpful discussions.

语种：英文

外文关键词：Photoluminescence - Charge transfer - Fluorescence - Light - Supramolecular chemistry - Molecules

摘要：Achieving multicolor photoluminescence, 'especially white-light emission, under mild conditions based on a single "fluorescent compound-is a great challenge. Herein, we report a novel colorful-emission host guest complex BPCY, which is composed of a two-arm fluorescent guest molecule (BPC) and gamma-cyclodextrin (gamma-CD) as the host-molecule. BPC bears a unique asymmetrical donor acceptor donor (D-1-A(+)similar to D-2)-type structure, where D-1, A(+), and D-2 stand for the binaphthol electron donor, pyridinium electron acceptor, and coumarin electron donor, respectively. The luminescence property of BPC shows dual-sensitivity, i.e., toward the excitation wavelength and the cyclodextrin host molecule. Under certain conditions, the complex shows three different emission wavelengths, allowing the realization of multicolor photoluminescence, including red (R), green (G), and blue (B) as well as various intermediate colors by orthogonally modulating these two stimuli. In this way, nearly pure white-light emission with CIE coordinates (0.33, 0.34) could be generated. A combination of structural, spectroscopic, and computational simulation studies revealed the occurrence of synergetic mechanistic processes for the stimuli-responsive multicolor luminescence of the BPCY complex, namely, host-enhanced intramolecular charge-transfer (ICT) and host-induced restriction of intramolecular rotation (RIR). This new supramolecular complex with superior multicolor emission abilities may find wide applications in the fields of information processing and display media. Furthermore, the molecular design rationale presented here may provide a new design strategy for the development of high performance optical materials using a single supramolecular platform.