title: Syntheses and characterization of Ru(III) with chelating containing ONNO donor quadridentate Schiff bases.
abstract: Complexes of ruthenium(III) with N,N'-disalicylidene-l,2-phenylenediamine (H2dsp), N,N'-disalicylidene-3,4-diaminotoluene (H2dst), 4-nitro-N,N'-disalicylidene-1,2-phenylenediamine (H2ndsp) and N,N'-disalicylidene ethylenediamine (H2salen) have been prepared and characterized by elemental analysis, molar conductivity, spectral methods (mid-infrared, 1H NMR and UV-vis spectra) and simultaneous thermal analysis (TG and DTG) techniques. The molar conductance measurements proved that all these complexes are non-electrolytes. The electronic spectra measurements were used to infer the structures. The IR spectra of the ligands and their complexes are used to identify the type of bonding. The kinetic thermodynamic parameters such as: E*, DeltaH*, DeltaS* and DeltaG* are estimated from the DTG curves. The four ligands and their complexes have been studied for their possible biological antifungal activity.
authors.affiliation: Department of Chemistry, Faculty of Education, Suez Canal University, Mohamed Ali Street, Port Said, Egypt. msrefat@yahoo.com
authors.forename: Moamen S
authors.initials: MS
authors.lastname: Refat
authors.forename: Sabry A
authors.initials: SA
authors.lastname: El-Korashy
authors.forename: Deo Nandan
authors.initials: DN
authors.lastname: Kumar
authors.forename: Ahmed S
authors.initials: AS
authors.lastname: Ahmed
mesh_terms: D000528:Alternaria / Q000187:drug effects; D000935:Antifungal Agents / Q000737:chemistry / Q000494:pharmacology; D001230:Aspergillus / Q000187:drug effects; D002614:Chelating Agents / Q000737:chemistry* / Q000494:pharmacology; D007700:Kinetics; D008024:Ligands; D009569:Nitric Oxide / Q000737:chemistry*; D010407:Penicillium / Q000187:drug effects; D012428:Ruthenium / Q000737:chemistry*; D012545:Schiff Bases; D013057:Spectrum Analysis; D014867:Water / Q000737:chemistry
chemical_list: D000935:Antifungal Agents; D002614:Chelating Agents; D008024:Ligands; D012545:Schiff Bases; D014867:Water; D009569:Nitric Oxide; D012428:Ruthenium