title: β-Hydroxy-α-naphthaldehyde [2-(quinolin-8'-yloxy) acetyl] hydrazone as an efficient fluorescent chemosensor for Mg2+.
abstract: An efficient fluorescent sensor based on β-hydroxy-α-naphthaldehyde [2-(quinolin-8'-yloxy) acetyl] hydrazone (HL) for Mg2+ has been designed and synthesized. The receptor showed "off-on" fluorescent responses toward Mg2+ in acetonitrile. The reasons for this phenomenon is that the addition of Mg2+ to the solution of HL induce the formation of a 1:1 ligand-metal complex which inhibit excited-state intramolecular proton transfer (ESIPT).
authors.affiliation: College of Chemistry and Chemical Engineering, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China.
authors.forename: Jing-can
authors.initials: JC
authors.lastname: Qin
authors.affiliation: College of Chemistry and Chemical Engineering, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China. Electronic address: yangzy@lzu.edu.cn.
authors.forename: Zheng-yin
authors.initials: ZY
authors.lastname: Yang
authors.affiliation: College of Chemistry and Chemical Engineering, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China.
authors.forename: Long
authors.initials: L
authors.lastname: Fan
authors.affiliation: College of Chemistry and Chemical Engineering, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China.
authors.forename: Bao-dui
authors.initials: BD
authors.lastname: Wang
mesh_terms: D000447:Aldehydes / Q000737:chemistry*; D002413:Cations, Divalent / Q000032:analysis; D005456:Fluorescent Dyes / Q000737:chemistry*; D006835:Hydrazones / Q000737:chemistry*; D008274:Magnesium / Q000032:analysis*; D009281:Naphthalenes / Q000737:chemistry*; D013050:Spectrometry, Fluorescence
chemical_list: D000447:Aldehydes; D002413:Cations, Divalent; D005456:Fluorescent Dyes; D006835:Hydrazones; D009281:Naphthalenes; C009840:1-naphthaldehyde; D008274:Magnesium
keywords: ESIPT; Fluorescence sensor; Magnesium ion; Naphthalene derivative