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Gibbs Free Energy and Activation Free Energy of Complexation of Some Divalent Cations with Ampicillin in Methanol at Different Temperatures

Received: 1 September 2016     Accepted: 8 November 2016     Published: 21 January 2017
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Abstract

The Complexation reaction between Sodium (2S,5R,6R)-6-{[(2R)-2-amino-2-phenylacetyl]amino}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate (Ampicillin sodium salt) ligand with Ca+2 and Ba+2 ions were studied condctometrically in methanol at four different temperatures (293.15K, 298.15K, 303.15K, 308.15K) On drawing the relation between molar conductance and the ratio of metal to ligand concentrations, different lines are obtained indicating the formation of (1:1 and 2:1 (M:L) stoichiometric complexes. The formation constants, thermodynamic parameters Gibbs free energies and Gibbs free energies of formation of different complexes in methanol were determined.

Published in American Journal of Applied Chemistry (Volume 4, Issue 6)
DOI 10.11648/j.ajac.20160406.16
Page(s) 256-259
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2017. Published by Science Publishing Group

Keywords

Conductometric Studies, Formation Constant, Gibbs Free Energy, Activation Free Energy, Gibbs Free Energy, Ampicillin, Methanol

References
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[3] E. A. Gracia and D. B. Gomis, Mikrochem. Acta. 1996, 124, 179.
[4] S. Cao and M. J. Zhang, Trace Microprobe Tech., 1999, 17, 157.
[5] Esam A. Gomaa, Elsayed M. Abou Elleef and E. T. Helmy, RRJPPS | Volume 3 | Issue 3 | July – (2014).
[6] AHFS DRUG INFORMATION 2006 (2006 ed.). American Society of Health-System Pharmacists. (2006).
[7] Gryzybkowski, W. and Pastewski, R. (1980) Electrochimica Acta 25, 279.
[8] Takeda, Y. Bul. Chem. Soc. Jpn 56, 3600. (1983).
[9] Rahmi-Nasrabadi, M., Ahmedi, F., Pourmor-tazari, S. M., Ganjal, M. R. and Alizadeh, K. (2009) Journal of Molecular Liquids 144, 97.
[10] E. A. Gomaa, E. M. Abouelleef, E. T. Helmy Reseach and Review J. of Chem. Vol.3, No 2 (2014).
[11] E. A. Gomaa, E. M. Abouelleef, E. T. Helmy, South. Braz. J. Chem., Vol.21, No. 21, 2013.
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  • APA Style

    Elsayed T. Helmy, Esam A. Gomaa, Elsayed M. Abou Eleef. (2017). Gibbs Free Energy and Activation Free Energy of Complexation of Some Divalent Cations with Ampicillin in Methanol at Different Temperatures. American Journal of Applied Chemistry, 4(6), 256-259. https://doi.org/10.11648/j.ajac.20160406.16

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    ACS Style

    Elsayed T. Helmy; Esam A. Gomaa; Elsayed M. Abou Eleef. Gibbs Free Energy and Activation Free Energy of Complexation of Some Divalent Cations with Ampicillin in Methanol at Different Temperatures. Am. J. Appl. Chem. 2017, 4(6), 256-259. doi: 10.11648/j.ajac.20160406.16

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    AMA Style

    Elsayed T. Helmy, Esam A. Gomaa, Elsayed M. Abou Eleef. Gibbs Free Energy and Activation Free Energy of Complexation of Some Divalent Cations with Ampicillin in Methanol at Different Temperatures. Am J Appl Chem. 2017;4(6):256-259. doi: 10.11648/j.ajac.20160406.16

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  • @article{10.11648/j.ajac.20160406.16,
      author = {Elsayed T. Helmy and Esam A. Gomaa and Elsayed M. Abou Eleef},
      title = {Gibbs Free Energy and Activation Free Energy of Complexation of Some Divalent Cations with Ampicillin in Methanol at Different Temperatures},
      journal = {American Journal of Applied Chemistry},
      volume = {4},
      number = {6},
      pages = {256-259},
      doi = {10.11648/j.ajac.20160406.16},
      url = {https://doi.org/10.11648/j.ajac.20160406.16},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajac.20160406.16},
      abstract = {The Complexation reaction between Sodium (2S,5R,6R)-6-{[(2R)-2-amino-2-phenylacetyl]amino}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate (Ampicillin sodium salt) ligand with Ca+2 and Ba+2 ions were studied condctometrically in methanol at four different temperatures (293.15K, 298.15K, 303.15K, 308.15K) On drawing the relation between molar conductance and the ratio of metal to ligand concentrations, different lines are obtained indicating the formation of (1:1 and 2:1 (M:L) stoichiometric complexes. The formation constants, thermodynamic parameters Gibbs free energies and Gibbs free energies of formation of different complexes in methanol were determined.},
     year = {2017}
    }
    

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    T1  - Gibbs Free Energy and Activation Free Energy of Complexation of Some Divalent Cations with Ampicillin in Methanol at Different Temperatures
    AU  - Elsayed T. Helmy
    AU  - Esam A. Gomaa
    AU  - Elsayed M. Abou Eleef
    Y1  - 2017/01/21
    PY  - 2017
    N1  - https://doi.org/10.11648/j.ajac.20160406.16
    DO  - 10.11648/j.ajac.20160406.16
    T2  - American Journal of Applied Chemistry
    JF  - American Journal of Applied Chemistry
    JO  - American Journal of Applied Chemistry
    SP  - 256
    EP  - 259
    PB  - Science Publishing Group
    SN  - 2330-8745
    UR  - https://doi.org/10.11648/j.ajac.20160406.16
    AB  - The Complexation reaction between Sodium (2S,5R,6R)-6-{[(2R)-2-amino-2-phenylacetyl]amino}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate (Ampicillin sodium salt) ligand with Ca+2 and Ba+2 ions were studied condctometrically in methanol at four different temperatures (293.15K, 298.15K, 303.15K, 308.15K) On drawing the relation between molar conductance and the ratio of metal to ligand concentrations, different lines are obtained indicating the formation of (1:1 and 2:1 (M:L) stoichiometric complexes. The formation constants, thermodynamic parameters Gibbs free energies and Gibbs free energies of formation of different complexes in methanol were determined.
    VL  - 4
    IS  - 6
    ER  - 

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Author Information
  • Marine Pollution Research Lab., National Institute of Oceanography and Fisheries, Ministry of Scientific Research, Alexandria, Egypt

  • Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt

  • Basic Science Department, Delta Higher Institute for Engineering & Technology, Dakhlia, Mansoura, Egypt

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