title: Eu(III), Tb(III) complexes with novel ligands containing pyridine-2,6-dicarboxylic acid unit: synthesis, characterization, fluorescence properties and application in biological imaging.
abstract: Three novel ligands containing pyridine-2,6-dicarboxylic acid unit, trans-4 -(4'-methoxystyryl) pyridine-2,6-dicarboxylic acid, trans-4-(4'-(dimethylamino)styryl)pyridine-2,6-dicarboxylic acid, and trans-4-(4'-(diphenylamino)styryl)pyridine-2,6-dicarboxylic acid were synthesized and their complexes with Eu(III), Tb(III) ions were successfully prepared. The ligands and the corresponding metal complexes were characterized by means of MS, elemental analysis, IR, (1)H NMR and TG-DTA. The luminescence spectra of Eu(III) and Tb(III) complexes in solid state were studied. The strong luminescence emitting peaks at 615 nm for Eu(III) and 545 nm for Tb(III) can be observed. The applications in cell imaging of the europium and terbium complexes were investigated.
authors: Department of Chemistry, Shanghai Normal University, Shanghai 200234, PR China. xiaohb@shnu.edu.cn
authors: Haibo
authors: H
authors: Xiao
authors: Minjuan
authors: M
authors: Chen
authors: Chong
authors: C
authors: Mei
authors: Hongyao
authors: H
authors: Yin
authors: Xiaoying
authors: X
authors: Zhang
authors: Xiaoxia
authors: X
authors: Cao
mesh_terms: D000818:Animals; D004055:Differential Thermal Analysis; D005063:Europium / Q000737:chemistry*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008024:Ligands; D010848:Picolinic Acids / Q000138:chemical synthesis* / Q000737:chemistry; D013050:Spectrometry, Fluorescence; D013055:Spectrophotometry, Infrared; D013725:Terbium / Q000737:chemistry*; D013818:Thermogravimetry
chemical_list: D008024:Ligands; D010848:Picolinic Acids; D013725:Terbium; D005063:Europium; C004860:dipicolinic acid