乙烯基吡咯：固态结构与聚集诱导发光特性

Vinylpyrroles: solid-state structures and aggregation-induced emission properties.

作者信息

Okawara Toru, Matsufuji Yurina, Mizuno Kouhei, Takehara Kenji, Nagamura Toshihiko, Iwasa Seiji

机构信息

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.

出版信息

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.