基于4-(二乙氨基)水杨醛1,5-二氨基萘双希夫碱金属配合物的高选择可逆离子传感器
详细信息 查看官网全文
摘要
近年来,我们课题组专注希夫碱类化合物在离子识别方面的研究[1-4]。在本文中,我们设计合成了一个新颖的荧光传感器,由4-(二乙氨基)水杨醛和1,5-二氨基萘通过反应得到一个双希夫碱分子,在含水体系中,它对铜离子具备荧光"开-关"响应,没有铜离子加入时,溶液有强烈的绿色荧光;当加入铜离子后,溶液荧光猝灭,并且产生明显的颜色变化,荧光检测限达1.609×10~(-8) M.此外,我们将该传感器与铜离子的配合物应用于对阴离子的检测识别发现,该金属配合物可以高选择和灵敏度的对H_2PO_4~–的单一选择识别,其荧光最低检测限可达0.994×10~(-7) M,络合常数为2.3×10~7 M-2,而且1:2的络合比通过jop曲线图以及质谱图得到验证。
引文
[1]Qu,W.,Gao,G.,Shi,B.,Wei,T.,Zhang,Y.,Lin,Q.,Yao,H.,A highly selective and sensitive fluorescent chemosensor for mercury ions based on the mechanism of supramolecular selfassembly.Sensors and Actuators B:Chemical,2014,204,368-374.
[2]Wei,T.,Gao,G.,Qu,W.,Shi,B.,Lin,Q.,Yao,H.,Zhang,Y.,Selective fluorescent sensor for mercury(II)ion based on an easy to prepare double naphthalene Schiff base.Sensors and Actuators B:Chemical,2014,199,142-147.
[3]Li,Q.,Zhang,J.,Cai,Y.,Qu,W.,Gao,G.,Lin,Q.,Yao,H.,Zhang,Y.,Wei,T.,A facile Col-orimetric and fluorescent cyanide chemosensor:utilization of the nucleophilic addition induced byresonance-assisted hydrogen bond,Tetrahedron,2015,71,857–862.
[4]Wu,G.,Hu,B.,Shi,B.,Zhang,P.,Lin,Q.,Yao,H.,Zhang,Y.,Wei,T.,Sensitive and selective chemosensor for instantdetecting fluorine ion via different channels,Supramolecular Che-mistry,2015,27,201–211
[2]Wei,T.,Gao,G.,Qu,W.,Shi,B.,Lin,Q.,Yao,H.,Zhang,Y.,Selective fluorescent sensor for mercury(II)ion based on an easy to prepare double naphthalene Schiff base.Sensors and Actuators B:Chemical,2014,199,142-147.
[3]Li,Q.,Zhang,J.,Cai,Y.,Qu,W.,Gao,G.,Lin,Q.,Yao,H.,Zhang,Y.,Wei,T.,A facile Col-orimetric and fluorescent cyanide chemosensor:utilization of the nucleophilic addition induced byresonance-assisted hydrogen bond,Tetrahedron,2015,71,857–862.
[4]Wu,G.,Hu,B.,Shi,B.,Zhang,P.,Lin,Q.,Yao,H.,Zhang,Y.,Wei,T.,Sensitive and selective chemosensor for instantdetecting fluorine ion via different channels,Supramolecular Che-mistry,2015,27,201–211