Okawara Toru, Matsufuji Yurina, Mizuno Kouhei, Takehara Kenji, Nagamura Toshihiko, Iwasa Seiji
Department of Creative Engineering, National Institute of Technology, Kitakyushu College Shii 5-20-1, Kokuraminami-ku, Kitakyushu Fukuoka 802-0985 Japan
Advanced School of Creative Engineering, National Institute of Technology, Kitakyushu College Shii 5-20-1, Kokuraminami-ku, Kitakyushu Fukuoka 802-0985 Japan.
RSC Adv. 2019 Jul 23;9(40):22817-22822. doi: 10.1039/c9ra04088a.
An aggregation-induced emission chromophore, vinylpyrrole, was prepared from a formylpyrrole derivative, Meldrum's acid, and 1,3-dimethylbarbituric acid. The optical properties of the chromophore both in the solution and solid states were investigated by UV-vis and fluorescence spectroscopy. Single crystal X-ray diffraction measurements revealed that the dimethylbarbituric acid adduct formed a J-aggregate in the solid and resulted in higher fluorescence quantum yield compared to the Meldrum's acid adduct. Emission enhancement was found to occur by the restriction of molecular rotation in the solid state.
一种聚集诱导发光发色团——乙烯基吡咯，由甲酰基吡咯衍生物、丙二酸亚异丙酯和1,3 - 二甲基巴比妥酸制备而成。通过紫外可见光谱和荧光光谱研究了该发色团在溶液和固态中的光学性质。单晶X射线衍射测量表明，二甲基巴比妥酸加合物在固态中形成了J-聚集体，与丙二酸亚异丙酯加合物相比，其荧光量子产率更高。发现固态中分子旋转受限导致了发射增强。
