Potentiometric study of equilibrium constants of a novel Triazine-Thione derivative and its stability constants with Hg2+, Cu2+, Ni2+, Pb2+ and Zn2+ metal ions in ethanol-water mixed.      
Yazarlar (4)
Prof. Dr. Fatih POLAT Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Hasan Atabey
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Prof. Dr. Hayati SARI Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Alaaddin Çukurovalı
Firat Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Turkish Journal of Chemistry
Dergi ISSN 1300-0527 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 01-2013
Cilt No 37
Sayı 3
Sayfalar 439 / 448
DOI Numarası 10.3906/kim-1207-55
Makale Linki https://doi.org/10.3906/kim-1207-55
Özet
The deprotonation constants of 5-hydroxy-5,6-di-pyridin-2-yl-4,5-dihydro- 2H-[1,2,4] triazine-3-thione (HPT) and the stability constants of its Hg 2+, Ni2+, Cu2+, Pb2+, and Zn 2+ ion complexes were studied in 20% ethanol and water mixed at 25 ± 0.1 °C and ionic strength (I) of 0.1 M supported by NaCl. Four pKa values of HPT were determined: 3.58, 6.30, 9.23, and 9.69. In various pH conditions, the different complex forms were formulated as ML, MHL, MH2 L, MH3 L, MH4 L, and MH-2L between Hg2+, Ni2+, Cu2+, Pb2+ , and Zn2+ ions and HPT. According to the potentiometric and spectrophotometric results, the HPT and Hg2+ combination formed a selective and highly stable complex at pH 7. © TÜBITAK.
Anahtar Kelimeler
Equilibrium constants | Potentiometry | Proton affinity | Triazine-thione