title: Thermodynamics in [Mn(II)-antibiotics-bacitracin] mixed system: a polarographic approach.
abstract: Polarographic technique was used to determine the kinetic parameters, thermodynamic parameters and stability constants (log(beta)) of Mn(II) complexes with neomycin, chlortetracycline, oxytetracycline, tetracycline, penicillin V and penicillin G as primary ligands and bacitracin as the secondary ligand, at pH 7.3+/-0.01 and an ionic strength mu=1.0 M (NaClO(4)) at 25 degrees C. The study was also carried out at 35 degrees C to determine the stability constants and thermodynamic parameters viz. enthalpy change (DeltaH), entropy change (DeltaS) and free energy change (DeltaG) of complexes.
authors.affiliation: Department of Chemistry, Dr. H.S. Gour University, Sagar, MP India.
authors.forename: Farid
authors.initials: F
authors.lastname: Khan
authors.forename: Laxmi
authors.initials: L
authors.lastname: Tantuvay
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry*; D001414:Bacitracin / Q000737:chemistry*; D004355:Drug Stability; D006863:Hydrogen-Ion Concentration; D008345:Manganese / Q000737:chemistry*; D011048:Polarography; D013816:Thermodynamics
chemical_list: D000900:Anti-Bacterial Agents; D001414:Bacitracin; D008345:Manganese