Metal Ion Interaction with Penicillins. Part-IX. Equilibrium Study on the Mixed Ligand Complex Formation of Cobalt-, Nickel-, Copper- and Zinc(II) with Ampicillin in the Presence of Bipyridine and Imidazole
| Main Authors: | GURUNATH MUKHERJEE, TAPAS GHOSH |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 1997
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/5901529 |
Daftar Isi:
- Department of Chemistry, University College of Science, 92 Acharya Prafulla Chandra Road, Calcutta-700 009 Department of Chemistry, R K Mission V C College, Rahara, 24-Parganas (North)-743 186 Manuscript received 26 June 1995, revised 15 March 1996, accepted 2 May 1996 Equilibrium study on the complex formation of M2+ ions (M = Co, Ni, Cu and Zn) with ampicillin (ampH±) in the presence of bipyridine and imidazole (B) indicates the formation of mixed-ligand complexes of the types, M(amp)(B), M(H-1amp)(B) and M(H-1amp)(B)(OH) together with small amounts of binary M(amp) and M(B) complexes. Formation constants or the complexes determined by potentiometric method at 37 ± 0.1° in aqueous solution at a constant ionic strength, I = 0.1 M (NaNO3) and stability constants of the complexes have been correlated with the modes of coordination of the ligands and the nature of metal-ligand bonds.