title: Synthesis and characterization of an azo dibenzoic acid Schiff base and its Ni(II), Pb(II), Zn(II) and Cd(II) complexes.
abstract: The new Schiff base 4,4'-(1E,1'E)-(3,3'-(1E,1'E)-(pyridine-2,6-diylbis(azan-1-yl-1-ylid ene))bis(methan-1-yl-1-ylidene)bis(4-hydroxy-3,1-phenylene))bis(diazene-2,1-diyl)dibenzoic acid (1) was prepared from the condensation reaction of 2,6-diaminopyridine with 4-((3-formyl-4-hydroxyphenyl)diazenyl)benzoic acid in methanol. The compound 1 is potentially an N, O multidentate chelating ligand which could form stable complexes with metal ions in 1:1 up to 1:3mol ratio of metal to ligand. The 1:1 complexes of Schiff base 1 with Ni(II), Pb(II), Zn(II) and Cd(II) have been synthesized by its condensation reaction with appropriate salts of metal ions. Structures of Schiff base (1) as well as its complexes with abovementioned metal ions were characterized by elemental analysis, mass, IR, UV-vis., (1)H and (13)С NMR spectroscopy.
authors: Department of Chemistry, Faculty of Science, Lorestan University, Khorramabad, Iran. alikakanejadifard@yahoo.com
authors: Ali
authors: A
authors: Kakanejadifard
authors: Fatemeh
authors: F
authors: Esna-ashari
authors: Payman
authors: P
authors: Hashemi
authors: Abedin
authors: A
authors: Zabardasti
mesh_terms: D001391:Azo Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D019817:Benzoic Acid / Q000138:chemical synthesis / Q000737:chemistry*; D002104:Cadmium / Q000737:chemistry; D004396:Coloring Agents / Q000138:chemical synthesis / Q000737:chemistry*; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D007854:Lead / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D009532:Nickel / Q000737:chemistry; D012545:Schiff Bases / Q000138:chemical synthesis / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D015032:Zinc / Q000737:chemistry
chemical_list: D001391:Azo Compounds; D004396:Coloring Agents; D056831:Coordination Complexes; D012545:Schiff Bases; D002104:Cadmium; D007854:Lead; D009532:Nickel; D019817:Benzoic Acid; D015032:Zinc