Electrochemical study and dependence of `transition state´ in Co(II) and Ni(II) complexes with some antibiotics and cephalothin
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| Format: | Artículo científico |
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Universidade Estadual Paulista Júlio de Mesquita Filho
2007
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| _version_ | 1876478188689817600 |
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| author | F. Khan |
| author_facet | F. Khan |
| contents | Electrochemical study and dependence of `transition state´ in Co(II) and Ni(II) complexes with some antibiotics and cephalothin F. Khan Química antibiotics cephalothin electrode kinetics Electrode kinetics and study of transition state with applied potential in case of[M antibiotics cephalothin] system were reported at pH = 7.30 ± 0.01 at suitable supportingelectrolyte at 25.00C. The M = Co or Ni and antibiotics were doxycycline, chlortetracycline,oxytetracycline, tetracycline, minocycline, amoxicillin and chloramphenicol used as primaryligands and cephalothin as secondary ligand. Kinetic parameters viz. transfer coefficient (a),degree of irreversibility (l), diffusion coefficient (D) and rate constant (k) were determined.The values of a and k varied from 0.41 to 0.59 and 2.60 X 10-3 cm s-1 to 9.67 X 10-3 cm s-1in case of [Co antibiotics cephalothin] system. In case of [Ni antibiotics cephalothin],a and k varied from 0.41 to 0.58 and 2.34 X 10-3 cm s-1 to 9.19 X 10-3 cm s-1 respectivelyconfirmed that transition state behaves between oxidant and reductant response to appliedpotential and it adjusts it self in such a way that the same is located midway between droppingmercury electrode and solution interface. The values of rate constant confirmed thequasireversible nature of electrode processes. The stability constants (logb) of complexeswere also determined. 2007 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42932310 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.3 Vol.32 |
| format | Artículo científico |
| id | redalyc_42932310 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Universidade Estadual Paulista Júlio de Mesquita Filho |
| spellingShingle | Electrochemical study and dependence of `transition state´ in Co(II) and Ni(II) complexes with some antibiotics and cephalothin F. Khan Química antibiotics cephalothin electrode kinetics Electrochemical study and dependence of `transition state´ in Co(II) and Ni(II) complexes with some antibiotics and cephalothin F. Khan Química antibiotics cephalothin electrode kinetics Electrode kinetics and study of transition state with applied potential in case of[M antibiotics cephalothin] system were reported at pH = 7.30 ± 0.01 at suitable supportingelectrolyte at 25.00C. The M = Co or Ni and antibiotics were doxycycline, chlortetracycline,oxytetracycline, tetracycline, minocycline, amoxicillin and chloramphenicol used as primaryligands and cephalothin as secondary ligand. Kinetic parameters viz. transfer coefficient (a),degree of irreversibility (l), diffusion coefficient (D) and rate constant (k) were determined.The values of a and k varied from 0.41 to 0.59 and 2.60 X 10-3 cm s-1 to 9.67 X 10-3 cm s-1in case of [Co antibiotics cephalothin] system. In case of [Ni antibiotics cephalothin],a and k varied from 0.41 to 0.58 and 2.34 X 10-3 cm s-1 to 9.19 X 10-3 cm s-1 respectivelyconfirmed that transition state behaves between oxidant and reductant response to appliedpotential and it adjusts it self in such a way that the same is located midway between droppingmercury electrode and solution interface. The values of rate constant confirmed thequasireversible nature of electrode processes. The stability constants (logb) of complexeswere also determined. 2007 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42932310 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.3 Vol.32 |
| title | Electrochemical study and dependence of `transition state´ in Co(II) and Ni(II) complexes with some antibiotics and cephalothin |
| topic | Química antibiotics cephalothin electrode kinetics |
| url | https://www.redalyc.org/articulo.oa?id=42932310 |