Center for Supramolecular Optoelectronic Materials, Department of Materials Science and Engineering, Seoul National University, ENG 445, Seoul, 151-744, Korea.
Madrid Institute for Advanced Studies, IMDEA Nanoscience, C/Faraday 9, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain.
Angew Chem Int Ed Engl. 2016 Dec 19;55(51):15915-15919. doi: 10.1002/anie.201609699. Epub 2016 Nov 18.
Supramolecular polymers (SPs) have received great attention because of their potential for various practical applications. As part of our search for SPs that are highly fluorescent in aqueous media, we designed a system based on a cucurbit[8]uril (CB[8]) host and a newly designed cyanostilbene guest. Fluorescence quantum yields of ≈0 % in the disassembled monomer state and 91 % in the CB[8]-induced SP state were obtained. The intriguing photophysical properties of the SP are elucidated through detailed experimental and computational analysis, paving the way towards a fascinating class of water-soluble fluorescent SPs.
超分子聚合物(SPs)因其在各种实际应用中的潜力而受到广泛关注。作为我们在水相介质中寻找高荧光 SPs 的一部分,我们设计了一个基于葫芦[8]脲(CB[8])主体和新设计的氰基二苯乙烯客体的系统。在解组装单体状态下的荧光量子产率约为 0%,在 CB[8]诱导的 SP 状态下为 91%。通过详细的实验和计算分析阐明了 SP 的有趣光物理性质,为一类迷人的水溶性荧光 SP 铺平了道路。