Thermodynamic Studies of Some Complexes of 2-benzoylpyridine 4-phenyl-3-thiosemicarbazone

Tevfik Atalay And E. Güler AKGEMCİ

Makale detayları

Thermodynamic Studies of Some Complexes of 2-benzoylpyridine 4-phenyl-3-thiosemicarbazone

Yazarlar:

Tevfik Atalay And E. Güler AKGEMCİ

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 1998 Vol.22 Issue 2, pp.123-128

Belge Tipi:

Makale

Yayın Tarihi:

1/1998

Belge Dili:

Türkçe

Document ID (Org No.):

2000730620

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

The stability constants of the Co(II), Ni(II), Cu(II) and Zn(II) complexes with 2-benzoylpyridine 4-phenyl-3-thiosemicarbazone were determined using a spectrophotometric method at different temperatures (25, 30, 35 and 40 \pm 0.1oC) and ionic strengths (0.05, 0.01 and 0.20 M KNO3) in 50 % (v/v) aqueous ethanol. Plots of thermodynamic stability constants at zero ionic strength (\ln Ko) versus T-1 gave linear curves and D Ho and D So were also calculated from these plots. Moreover, the changes in free energy for each metal-ligand system were calculated from the following equation. D Go = -RT \ln Ko.

 

The stability constants of the Co(II), Ni(II), Cu(II) and Zn(II) complexes with 2-benzoylpyridine 4-phenyl-3-thiosemicarbazone were determined using a spectrophotometric method at different temperatures (25, 30, 35 and 40 \pm 0.1oC) and ionic strengths (0.05, 0.01 and 0.20 M KNO3) in 50 % (v/v) aqueous ethanol. Plots of thermodynamic stability constants at zero ionic strength (\ln Ko) versus T-1 gave linear curves and D Ho and D So were also calculated from these plots. Moreover, the changes in free energy for each metal-ligand system were calculated from the following equation. D Go = -RT \ln Ko.

Makale detayları

Thermodynamic Studies of Some Complexes of 2-benzoylpyridine 4-phenyl-3-thiosemicarbazone

Yazarlar: Tevfik Atalay And E. Güler AKGEMCİ

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 1998 Vol.22 Issue 2, pp.123-128

Belge Tipi: Makale

Yayın Tarihi: 1/1998

Belge Dili: Türkçe

Document ID (Org No.): 2000730620

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Tevfik Atalay And E. Güler AKGEMCİ

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 1998 Vol.22 Issue 2, pp.123-128

Belge Tipi:

Makale

Yayın Tarihi:

1/1998

Belge Dili:

Türkçe

Document ID (Org No.):

2000730620

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527