【摘要】 以７－二乙氨基－４－氯－３－甲醛基香豆素为基础合成了７只新型香豆素类的荧光染料。本类染料具有强烈的荧光。随着分子内π－共轭体系的增大，染料的色光从黄色增至红色。更多还原

【Abstract】 Abstract 7 Novel fluorescent dyes of coumarin were synthesized from 7-diethylamino-4-chloro-3-formyl-coumarin.These dyes have great fluorescence.When the π-conjugation becomes large,there will be a bathochromic shift from yellow to red with exception of dye(Ⅴ).更多还原