Wu Xin, Chen Xuan-Xuan, Song Bing-Nan, Huang Yan-Jun, Ouyang Wen-Juan, Li Zhao, James Tony D, Jiang Yun-Bao
Department of Chemistry, College of Chemistry and Chemical Engineering, MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, China.
Chem Commun (Camb). 2014 Nov 21;50(90):13987-9. doi: 10.1039/c4cc04542d.
Binding of the fluoride ion triggers aggregation of a pyreneboronic acid-catechol ensemble in acidic aqueous solutions, giving rise to intense excimer emission, allowing for sensitive fluoride ion sensing at ppm levels, with an apparent fluoride binding constant higher than 10(3) M(-1) which is unprecedented for boronic acid sensors in water.
氟离子的结合会触发酸性水溶液中芘硼酸 - 儿茶酚组合的聚集，产生强烈的准分子发射，从而能够在ppm水平上实现对氟离子的灵敏检测，其表观氟离子结合常数高于10³ M⁻¹，这对于水中的硼酸传感器来说是前所未有的。
