A study of behavior of some 5-substituted4-phenyl-1,2,4-triazoline-3-thiones in sulfuric acid solution using characteristic vector analysis

Vesna DIMOVA

doi:https://doi.org/10.3906/vet-1203-64

Makale detayları

A study of behavior of some 5-substituted4-phenyl-1,2,4-triazoline-3-thiones in sulfuric acid solution using characteristic vector analysis

Yazarlar:

Vesna DIMOVA

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Chemistry 2011 Vol.35 Issue 1, pp.109-120

Belge Tipi:

Makale

Yayın Tarihi:

12/2010

Belge Dili:

İngilizce

Document ID (Org No.):

2000727917

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

DOI:

https://doi.org/10.3906/vet-1203-64

Özet:

 

The protonation process of 1,2,4-triazoline-3-thiones (T3T)  was studied in aqueous sulfuric acid using the UV method.  Characteristic vector analysis (CVA) was used to reconstruct the  experimentally obtained UV spectra, to overcome difficulties in  calculating the protonation constants of T3T, and to separate the  effect of protonation from the generalized medium effect.  pKTH+  values were calculated using the Hammett acidity function method, the  Bunnett and Olsen method, and the excess acidity function method.  The obtained values for m, f and m* were close to those characteristic  for similar thio compounds, indicating that the protonation site in  the molecule of T3T is the S atom.

 

The protonation process of 1,2,4-triazoline-3-thiones (T3T)  was studied in aqueous sulfuric acid using the UV method.  Characteristic vector analysis (CVA) was used to reconstruct the  experimentally obtained UV spectra, to overcome difficulties in  calculating the protonation constants of T3T, and to separate the  effect of protonation from the generalized medium effect.  pKTH+  values were calculated using the Hammett acidity function method, the  Bunnett and Olsen method, and the excess acidity function method.  The obtained values for m, f and m* were close to those characteristic  for similar thio compounds, indicating that the protonation site in  the molecule of T3T is the S atom.

Makale detayları

A study of behavior of some 5-substituted4-phenyl-1,2,4-triazoline-3-thiones in sulfuric acid solution using characteristic vector analysis

Yazarlar: Vesna DIMOVA

Yayıncı: TUBITAK

Ana Başlıklar: Uygulamalı fizik

Dergi: Turkish Journal of Chemistry 2011 Vol.35 Issue 1, pp.109-120

Belge Tipi: Makale

Yayın Tarihi: 12/2010

Belge Dili: İngilizce

Document ID (Org No.): 2000727917

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

DOI: https://doi.org/10.3906/vet-1203-64

Sayı

Yazarlar:

Vesna DIMOVA

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Chemistry 2011 Vol.35 Issue 1, pp.109-120

Belge Tipi:

Makale

Yayın Tarihi:

12/2010

Belge Dili:

İngilizce

Document ID (Org No.):

2000727917

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

DOI:

https://doi.org/10.3906/vet-1203-64