title: Synthesis, characterization and properties of salicylhydrazide-salicylacylhydrazone derivatives and their terbium complexes.
abstract: A series of terbium complexes with salicylhydrazide-salicylacylhydrazone derivatives were synthesized and characterized by elemental analysis, IR spectra, UV/vis spectra and thermal analysis. The luminescence and electrochemical properties of the terbium complexes were investigated. The results show that all the target complexes exhibited characteristic emissions of terbium ions and the complex substituted by the chlorine has the strongest luminescence intensity with the highest quantum yield at 0.609. The introduction of donating electron groups could increase the oxidation potential and the highest occupied molecular orbital energy level of the terbium complex; however, the introduction of accepting electron groups gave the opposite result.
authors.affiliation: School of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
authors.forename: Defen
authors.initials: D
authors.lastname: Meng
authors.affiliation: School of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
authors.forename: Fen
authors.initials: F
authors.lastname: Liu
authors.affiliation: School of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
authors.forename: Yingying
authors.initials: Y
authors.lastname: Li
authors.affiliation: School of Chemical Engineering, Ningbo University of Technology, Ningbo, 315016, China.
authors.forename: Zehui
authors.initials: Z
authors.lastname: Yang
authors.affiliation: School of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
authors.forename: Guizhi
authors.initials: G
authors.lastname: Li
authors.affiliation: School of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
authors.forename: Dongcai
authors.initials: D
authors.lastname: Guo
mesh_terms: D006834:Hydrazines / Q000737:chemistry*; D006835:Hydrazones / Q000737:chemistry*; D049449:Luminescence; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D012459:Salicylates / Q000737:chemistry*; D013725:Terbium / Q000737:chemistry*
chemical_list: D006834:Hydrazines; D006835:Hydrazones; D009942:Organometallic Compounds; D012459:Salicylates; C000613208:salicylacyl hydrazone; D013725:Terbium; C000687:salicyl hydrazide
keywords: electrochemical properties; luminescence; salicylacylhydrazone derivatives; synthesis; terbium complexes