title: A new fluorescent chemosensor for recognition of Hg2+ions based on a coumarin derivative.
abstract: A novel coumarin derivatives based fluorescent chemosensor CBH was designed and synthesized by Schiff base reaction, which was connected by 7-(N,N-diethylamino) coumarin-3-aldehyde and 3-methyl-2-benzothiazolinone hydrazone through C=N. X-ray single crystal structure analysis indicated that two aromatic groups of the CBH were almost in the same plane. It displayed enhancement of the fluorescent intensity and absorbance when the sensor CBH interacted with Hg2+ions. The chemosensor CBH exhibited a good sensitive and selective recognition towards Hg2+ions in the presence of other important relevant metal ions.
authors.affiliation: Chemistry College, Dalian University of Technology, Dalian 116024, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Jiao
authors.affiliation: State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China.
authors.forename: Lu
authors.initials: L
authors.lastname: Zhou
authors.affiliation: State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China.
authors.forename: Haiyang
authors.initials: H
authors.lastname: He
authors.affiliation: Chemistry College, Dalian University of Technology, Dalian 116024, China; College of Medical Laboratory, Dalian Medical University, Dalian 116044, China.
authors.forename: Jiqiu
authors.initials: J
authors.lastname: Yin
authors.affiliation: State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China. Electronic address: cyduan@dlut.edu.cn.
authors.forename: Chunying
authors.initials: C
authors.lastname: Duan
mesh_terms: D052160:Benzothiazoles / Q000737:chemistry*; D003374:Coumarins / Q000737:chemistry*; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D006835:Hydrazones / Q000737:chemistry*; D008628:Mercury / Q000737:chemistry*; D008670:Metals / Q000737:chemistry; D015394:Molecular Structure; D012545:Schiff Bases / Q000737:chemistry; D013050:Spectrometry, Fluorescence
chemical_list: D052160:Benzothiazoles; D003374:Coumarins; D005456:Fluorescent Dyes; D006835:Hydrazones; D008670:Metals; D012545:Schiff Bases; D008628:Mercury; C002536:3-methyl-2-benzothiazolone hydrazone
keywords: Coumarin derivative; Fluorescent chemosensor; Hg(2+) ions