噻唑席夫碱L1-L3的非晶态二维纳米结构的光学行为及对铜离子的识别
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- 英文论文题名：The Optical behavior of amorphous 2-D nanoparticles for based Schiff bases L1-L3: chemoprobe towards Cu~(2+) in aqueous mixture
- 论文作者：沈萍 ; 杨昌英
- 英文论文作者：Ping Shen ; Changying Yang ; College of Biological and Pharmaceutical Science ; China Three Gorges University
- 年：2016
- 作者机构：三峡大学生物与制药学院;
- 论文关键词：席夫碱 ; 聚集诱导发光 ; 二维结构 ; 非晶态 ; J型聚集
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十七分会：光化学
- 语种：中文
- 分类号：TB383.1;O626
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十七分会 ; 光化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：158k
- 原文格式：D
- 会议级别：全国
摘要
本文研究了三个酚羟基席夫碱化合物L1,L2,L3在1,4-二氧六环与水的混合溶剂中的聚集态的光化学性质。由于这三个化合物与水分子之间的氢键作用,使之表现出典型的聚集诱导增强(AIEE)性质。化合物L1和L2在水含量为95%,L3为99%时,平面结构被破坏,噻唑取代基结构扭转,导致了J型聚集,从而形成了无定形的二维纳米结构,发光增强。更有趣的是,当化合物结构从晶态转变为非晶态时,发射谱发生了明显的蓝移和增强。除此之外,L1的聚集态溶液还能通过荧光猝灭作用检测水溶液中的铜离子,并且其灵敏度远远高于L1的有机溶液。
The formation of amorphous 2-D nanoparticles for hydroxy-naphthol based Schiff bases in Diox-H_2O mixture is most advantageous for fluorescence emission enhancement. The amorphous state was also found to be more favorable for these compounds emissive in solid. L1 aggregated solution could be constructed as a switch-off chemoprobe towards Cu~(2+) recognition, with higher selectivity and sensitivity compared to L1 in solution.
The formation of amorphous 2-D nanoparticles for hydroxy-naphthol based Schiff bases in Diox-H_2O mixture is most advantageous for fluorescence emission enhancement. The amorphous state was also found to be more favorable for these compounds emissive in solid. L1 aggregated solution could be constructed as a switch-off chemoprobe towards Cu~(2+) recognition, with higher selectivity and sensitivity compared to L1 in solution.
引文
[1]Yang,M.;Zhang,Y.;Zhu,W.;Wang,H.;Huang,J.;Cheng,L.;Zhou,H.;Wu,J.;Tian,Y.J.Mater.Chem.C2015,3:1994-2002.
[2]Debnath,P.;Chakraborty,S.;Deb,S.;Nath,J.;Bhattacharjee,D.;Hussain,S.A.J.Phys.Chem.C 2015,119:9429-9441.
[3]Misra,R.;Jadhav,T.;Dhokale,B.;Mobin,S.M.Chem.Commun.2014,50:9076-9078.
[2]Debnath,P.;Chakraborty,S.;Deb,S.;Nath,J.;Bhattacharjee,D.;Hussain,S.A.J.Phys.Chem.C 2015,119:9429-9441.
[3]Misra,R.;Jadhav,T.;Dhokale,B.;Mobin,S.M.Chem.Commun.2014,50:9076-9078.