Solvent and moleculer structure effects on acidity strength in non-aqueous medium

Şule BAHÇECİ; Zafer OCAK; Nuri YILDIRIM; Haydar YÜKSEK

doi:https://doi.org/10.51435/turkjac.939857

Makale detayları

Solvent and moleculer structure effects on acidity strength in non-aqueous medium

Yazarlar:

Şule BAHÇECİ | Zafer OCAK | Nuri YILDIRIM | Haydar YÜKSEK

Yayıncı:

Miraç OCAK

Ana Başlıklar:

Analytical chemistry

Dergi:

Turkish Journal of Analytical Chemistry 2021 Vol.3 Issue 1, pp.27-32

Belge Tipi:

Makale

Yayın Tarihi:

6/2021

Belge Dili:

İngilizce

Document ID (Org No.):

2000629968

Sıklık:

İki Yıllık

eISSN:

2687-6698

DOI:

https://doi.org/10.51435/turkjac.939857

Özet:

 

The acidic properties of ten 3-alkyl(aryl)-4-[3-hydroxy-4-methoxy benzylidenamino]-4,5-dihydro-1H-1,2,4-triazol-5-one derivatives were investigated. In this study, isopropyl alcohol and tert‐butanol  were used as an amphiprotic solvent. Aceton and N,N‐ dimethylformamide (DMF) were preferred as a dipolar aprotic solvent. Compounds were titrated with tetrabuthylamonnium hydroxide (TBAH) in isopropyl alcohol and titrimetric analyses were used potentiometric method determining the end-points, half-neutralization method determining acidity. Typical S-shaped titration graphs excepted were determined. The acidity strengths of 4,5-dihydro-1H-1,2,4-triazol-5-one derivatives in amphiprotic and dipolar aprotic solvents were calculated using tables and graphs. The pKa values obtained in the solvents were found to be differentiated. The effects of solvent, molecular structure, autoprotolysis constant dielectric constant, and leveling‐differentiation effects of the solvents upon acidity strength of the compounds were discussed.

Makale detayları

Solvent and moleculer structure effects on acidity strength in non-aqueous medium

Yazarlar: Şule BAHÇECİ | Zafer OCAK | Nuri YILDIRIM | Haydar YÜKSEK

Yayıncı: Miraç OCAK

Ana Başlıklar: Analytical chemistry

Dergi: Turkish Journal of Analytical Chemistry 2021 Vol.3 Issue 1, pp.27-32

Belge Tipi: Makale

Yayın Tarihi: 6/2021

Belge Dili: İngilizce

Document ID (Org No.): 2000629968

Sıklık: İki Yıllık

eISSN: 2687-6698

DOI: https://doi.org/10.51435/turkjac.939857

Sayı

Yazarlar:

Şule BAHÇECİ | Zafer OCAK | Nuri YILDIRIM | Haydar YÜKSEK

Yayıncı:

Miraç OCAK

Ana Başlıklar:

Analytical chemistry

Dergi:

Turkish Journal of Analytical Chemistry 2021 Vol.3 Issue 1, pp.27-32

Belge Tipi:

Makale

Yayın Tarihi:

6/2021

Belge Dili:

İngilizce

Document ID (Org No.):

2000629968

Sıklık:

İki Yıllık

eISSN:

2687-6698

DOI:

https://doi.org/10.51435/turkjac.939857