title: Highly selective and sensitive fluorescence chemosensor for the detection of palladium species based on Tsuji-Trost reaction.
abstract: A new chemosensor 7-nitro-2,1,3-benzoxadiazole-4-allyl-N-(thiophen-2-ylmethyl)carbamate (NBDTC) was synthesized and utilized for palladium detection based on the Tsuji-Trost reaction. NBDTC displayed specific and ratiometric fluorescent responses toward palladium species. The chemosensor showed more than 50-fold enhancement in fluorescence intensity with the presence of PEG400 and palladium because NBDTC can be transformed to NBDT under palladium-catalyzing Tsuji-Trost reaction. NBDTC displayed high selectivity and sensitivity for palladium species with the detection limit of 1.13×10(-9) M.
authors: School of Bioscience and Bioengineering, South China University, Guangzhou 510006, PR China.
authors: Zhong-Yong
authors: ZY
authors: Xu
authors: School of Bioscience and Bioengineering, South China University, Guangzhou 510006, PR China.
authors: Jing
authors: J
authors: Li
authors: School of Bioscience and Bioengineering, South China University, Guangzhou 510006, PR China.
authors: Su
authors: S
authors: Guan
authors: School of Bioscience and Bioengineering, South China University, Guangzhou 510006, PR China. Electronic address: lzhangce@scut.edu.cn.
authors: Lei
authors: L
authors: Zhang
authors: Université Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, 15 rue J-A de Baïf, 75205 Paris Cedex 13, France.
authors: Chang-Zhi
authors: CZ
authors: Dong
mesh_terms: D002219:Carbamates / Q000737:chemistry*; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000737:chemistry*; D057230:Limit of Detection; D010069:Oxadiazoles / Q000737:chemistry*; D010165:Palladium / Q000032:analysis*; D011092:Polyethylene Glycols / Q000737:chemistry; D013050:Spectrometry, Fluorescence / Q000379:methods; D013876:Thiophenes / Q000737:chemistry*
chemical_list: C542965:7-nitrobenzoxadiazole; D002219:Carbamates; D005456:Fluorescent Dyes; D010069:Oxadiazoles; D013876:Thiophenes; D011092:Polyethylene Glycols; D010165:Palladium; C000595213:polyethylene glycol 400
keywords: Fluorescence sensor; NBD; Palladium; Tsuji–Trost reaction