设计、合成了一种新型双吲哚啉螺吡喃化合物1,用核磁、红外及质谱等技术手段表征了其结构.利用紫外可见吸收光谱研究了化合物1的酸致变色和金属离子变色性能.结果表明,化合物1能够在氢离子或金属离子的作用下发生可逆的开环与闭环反应.当氢离子或金属离子加入到化合物1的异丙醇溶液中,溶液颜色从无色变为红色,同时产生460 nm新吸收峰.进一步加入氢氧根离子或EDTA溶液后,溶液颜色变回无色,460nm处的吸收峰又消失.该化合物的酸和金属离子致变色性质在分子传感和离子识别等领域有潜在的应用价值.
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