Pyrenoviologen-based fluorescent sensor for detection of picric acid in aqueous solution  

作　　者：Ni Yan Jiale Song Fengyan Wang Longwang Kan Jiahang Song Weiling Wang Wenqiang Ma Weidong Zhang Gang He 

机构地区：[1]Polymer Materials&Engineering Department,School of Materials Science&Engineering,Engineering Research Center of Transportation Materials,Ministry of Education,Chang'an University,Xi'an 710064,China [2]Frontier Institute of Science and Technology,State Key Laboratory for Strength and Vibration of Mechanical Structures,Xi'an Jiaotong University,Xi'an 710054,China

出　　处：《Chinese Chemical Letters》2019年第11期1984-1988,共5页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.21603016,21704081,51603016 and21704005);Shaanxi College Students Innovation and Entrepreneurship Training Program(No.S201910710282)

摘　　要：Two highly emissive pyrenoviologen derivatives were synthesized and used to fabricate fluorescent sensors for detection of picric acid(PA)with good sensitivity and selectivity.The sensitivity of the sensor was attributed to the specific electrostatic association effect of the cationic pyrenoviologens to the picrate anions,which also gave the sensor special selectivity among other compounds with similar structure.The electron transfer between them was attributed to the fluorescence response.Fluorescence lifetime measurements revealed that the quenching is static in nature.The novel and efficient pyrenoviologen derivatives-based sensors offered a strategy to fabricate real-life PA sensor.Two highly emissive pyrenoviologen derivatives were synthesized and used to fabricate fluorescent sensors for detection of picric acid(PA) with good sensitivity and selectivity.The sensitivity of the sensor was attributed to the specific electrostatic association effect of the cationic pyrenoviologens to the picrate anions,which also gave the sensor special selectivity among other compounds with similar structure.The electron transfer between them was attributed to the fluorescence response.Fluorescence lifetime measurements revealed that the quenching is static in nature.The novel and efficient pyrenoviologen derivatives-based sensors offered a strategy to fabricate real-life PA sensor.

关 键 词：VIOLOGEN Explosives Picric acid PYRENE Fluorescent sensor 

分 类 号：O62[理学—有机化学]