title: A simple fluorescent receptor selective for Mg2+.
abstract: A structurally simple fluorescent receptor (receptor 1) has been synthesized and was found to show a dramatic enhancement in its fluorescence emission upon complexation with Mg(2+). This was maybe contributed to by the inhibition of the C=N isomerization in the excited state. The experimental results show that the receptor was selective and sensitive towards Mg(2+) in the presence of competing ions, with a low detection limit of 3.5 × 10(-9) mol L(-1) (3σ).
authors.affiliation: Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P.R. China.
authors.forename: Yingying
authors.initials: Y
authors.lastname: Ma
authors.forename: Hong
authors.initials: H
authors.lastname: Liu
authors.forename: Shaopu
authors.initials: S
authors.lastname: Liu
authors.forename: Rui
authors.initials: R
authors.lastname: Yang
mesh_terms: D000097:Acetonitriles / Q000737:chemistry; D001597:Benzylidene Compounds / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry*; D007477:Ions / Q000737:chemistry; D008274:Magnesium / Q000032:analysis*; D012663:Semicarbazides / Q000737:chemistry*; D013050:Spectrometry, Fluorescence
chemical_list: C574250:1-(2-hydroxybenzylidene)-4-phenylsemicarbazide; C574251:1-(2-methoxybenzylidene)-4-phenylsemicarbazide; D000097:Acetonitriles; D001597:Benzylidene Compounds; D005456:Fluorescent Dyes; D007477:Ions; D012663:Semicarbazides; D008274:Magnesium; C032159:acetonitrile