1,4-Diaryl-7,10-dimethoxyquinoxalino[2,3-<i>b</i>]quinoxalines and Their Dihydro Derivatives: Redox Switching of NIR Absorption and Fluorescence
作者:Youhei Miura、Hidetoshi Kawai、Kenshu Fujiwara、Takanori Suzuki
DOI:10.1246/cl.2011.975
日期:2011.9.5
Due to the high-lying HOMO of the substituents and the low-lying LUMO inherited by the heterocyclic skeleton, the title quinoxalinoquinoxalines 1 exhibit absorption bands which extend to the NIR region, whereas the dihydro derivatives 2 are less colored but emit strong green fluorescence. Thus, the present pairs can serve as novel redox dyes for drastic spectral changes.
由于取代基的高位 HOMO 和杂环骨架继承的低位 LUMO,标题中的喹喔啉喹喔啉 1 显示出延伸至近红外区域的吸收带,而二氢衍生物 2 的颜色较浅,但发出强烈的绿色荧光。因此,本对化合物可作为新型氧化还原染料,用于大幅改变光谱。