title: Zinc 2-((2-(benzoimidazol-2-yl)quinolin-8-ylimino)methyl)phenolates: synthesis, characterization and photoluminescence behavior.
abstract: A series of 2-(2-(1H-benzoimidazol-2-yl)quinolin-8-yliminomethyl)phenol derivatives and their zinc complexes (C1-C5) were synthesized and fully characterized. The molecular structure of the representative complex C2 was determined by single crystal X-ray diffraction, which revealed that the zinc was five-coordinated with the tetra-dentate ligand and a methanol bound to the metal to afford a distorted square-pyramidal geometry. The UV-Vis absorption and fluorescence spectra of the organic compounds and their zinc complexes were measured and investigated in various solvents such as methanol, THF, dichloromethane, and toluene; significant influences by solvents were observed on their luminescent properties; red-shifts for the zinc complexes were clearly observed in comparison to the free organic compounds.
authors.affiliation: School of Materials Science and Engineering, Qilu University of Technology, Jinan 250353, China; Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Longlong
authors.initials: L
authors.lastname: Li
authors.forename: Xian
authors.initials: X
authors.lastname: Zhang
authors.forename: Wenjuan
authors.initials: W
authors.lastname: Zhang
authors.forename: Wen
authors.initials: W
authors.lastname: Li
authors.forename: Wen-Hua
authors.initials: WH
authors.lastname: Sun
authors.forename: Carl
authors.initials: C
authors.lastname: Redshaw
mesh_terms: D001562:Benzimidazoles / Q000138:chemical synthesis / Q000737:chemistry*; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D018360:Crystallography, X-Ray; D005453:Fluorescence; D062385:Hydroxybenzoates / Q000138:chemical synthesis / Q000737:chemistry*; D049408:Luminescent Agents / Q000138:chemical synthesis / Q000737:chemistry*; D008958:Models, Molecular; D011804:Quinolines / Q000138:chemical synthesis / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D015032:Zinc / Q000737:chemistry*
chemical_list: D001562:Benzimidazoles; D056831:Coordination Complexes; D062385:Hydroxybenzoates; D049408:Luminescent Agents; D011804:Quinolines; C017616:phenolic acid; D015032:Zinc
keywords: 2-(2-(1H-Benzoimidazol-2-yl)quinolin-8-yliminomethyl)phenol; Fluorescence; UV-absorption spectra; Zinc complexes