Green synthesis and photophysical properties of novel 1 H -imidazo[4,5- f ][1,10]phenanthroline derivatives with blue/cyan two-photon excited fluorescence
作者:Yu-Lu Pan、Zhi-Bin Cai、Li Bai、Fei-Fei Ma、Sheng-Li Li、Yu-Peng Tian
DOI:10.1016/j.tet.2017.03.075
日期:2017.5
developed for the synthesis of a series of novel 1H-imidazo[4,5-f][1,10]phenanthroline derivatives (1BN, 2Py, 3BI, 4BT, and 5MOBI) via a three–component, one–pot reaction under solvent–free conditions. Their structures were characterized by FT–IR, 1H NMR, 13C NMR, MS, and elemental analysis. Their photophysical properties, including linear absorption, one–photon excited fluorescence, two–photon absorption
已开发出一种简单,快速且高效的方法来合成一系列新型的1 H-咪唑并[4,5- f ] [1,10]菲咯啉衍生物(1BN,2Py,3BI,4BT和5MOBI)通过无溶剂条件下的三组分一锅法反应。其结构的特征在于FT-IR,1 H NMR,1313 C NMR,MS和元素分析。在各种溶剂中系统地研究了它们的光物理性质,包括线性吸收,单光子激发荧光,双光子吸收和双光子激发荧光。结果表明,所有化合物均发出相对较强的蓝/青色荧光。1BN和5MOBI在THF中显示出较大的双光子吸收截面(471和654 GM)。此外,使用密度泛函理论研究了电子结构与光物理性质之间的关系。