POLAROGRAPHIC STUDY OF STABILITY OF Mn(II) COMPLEXES WITH SOME ANTIBIOTICS AND VITAMIN-B_2

摘要

Polarographic technique was used to determine the thermodynamic parameters such as enthalpy change (DELTA H),Free energy change (DELTA G) and entropy change (DELTA S) of Mn (II) complexes with neomycin,chlortetracyclin,oxytetracyclin,tetracyclic penicillin-V,and penicillin-G as primary ligands and vitamin-B2 as secondary ligand at pH = 7.30 ± 0.01 and an ionic strength mu = 1.0 M NaClO4. The study was carried out at two different temperatures i.e. 25° and 35° to determine the thermodynamic parameters.