- 作者: --
- 作者服務機構: Electrochemical Laboratory, Department of Chemistry, Dr. H. S. Gour University, Sagar, M.P., India
- 中文摘要: Charge transfer reactions between a dropping mercury electrode and a [Mn-antibiotics-cephalothin] system were studied at pH = 7.30 ± 0.01, μ= 1.0 M NaClO4 at 298 K. The antibiotics were doxycycline, chlortetracycline, oxytetracycline, tetracycline, minocycline, amoxicillin and chloramphenicol used as primary ligands and cephalothin as secondary ligand formed 1:1:1, 1:1:2 and 1:2:1 complexes with Zn2. Electrode kinetics was discussed on the basis of kinetic parameters viz. transfer coefficient (α), degree of irreversibility (λ), diffusion coefficient (D) and rate constant (k). The values of a varied from 0.40 to 0.57 (0.50) confirm that ‘transition state’ behaves between reactant and product response to applied potential and it lies always between d.m.e. and solution interface. A small variation in potential affects the rate and rate constant greatly.
- 英文摘要: --
- 中文關鍵字: Electrode kinetics between dropping mercury electrode; [Zn-antibiotics-cephalothin] system.
- 英文關鍵字: --