title: Supramolecular structure and spectral studies on mixed-ligand complexes derived from β-diketone with azodye rhodanine derivatives.
abstract: A novel method to synthesize some mononuclear ternary palladium(II) complexes of the general formula [Pd(L(n))L] (where LH=diketone=acetylacetone, HL(n)=azorhodanine) has been synthesize. The structure of the new mononuclear ternary palladium(II) complexes was characterized using elemental analysis, spectral (electronic, infrared and (1)H &(13)C NMR) studies, magnetic susceptibility measurements and thermal studies. The IR showed that the ligands (HL(n) & LH) act as monobasic bidentate through the azodye nitrogen, oxygen keto moiety and two enolato oxygen atoms. The molar conductivities show that all the complexes are non-electrolytes. Bidentate chelating nature of β-diketone and azorhodanine anions in the complexes was characterized by (electronic, infrared and (1)H &(13)C NMR) spectra. Square planar geometry around palladium has been assigned in all complexes. Various ligand and nephelouxetic parameter have been calculated for the complexes. The thermal decomposition for complexes was studied.
authors.affiliation: Chemistry Department, Faculty of Science, Damietta University, Damietta, Egypt. elsonbatisch@yahoo.com
authors.forename: A Z
authors.initials: AZ
authors.lastname: El-Sonbati
authors.forename: M A
authors.initials: MA
authors.lastname: Diab
authors.forename: A A M
authors.initials: AA
authors.lastname: Belal
authors.forename: Sh M
authors.initials: ShM
authors.lastname: Morgan
mesh_terms: D001391:Azo Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D002614:Chelating Agents / Q000138:chemical synthesis / Q000737:chemistry; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D008024:Ligands; D009682:Magnetic Resonance Spectroscopy; D010165:Palladium / Q000737:chemistry*; D010422:Pentanones / Q000138:chemical synthesis / Q000737:chemistry*; D012236:Rhodanine / Q000031:analogs & derivatives* / Q000138:chemical synthesis; D013055:Spectrophotometry, Infrared
chemical_list: D001391:Azo Compounds; D002614:Chelating Agents; D056831:Coordination Complexes; D008024:Ligands; D010422:Pentanones; C008790:acetylacetone; D010165:Palladium; D012236:Rhodanine