Thallium(I) complexes of some sulphur-containing ligands
Yazarlar (6)
Prof. Dr. Majıd MONAJJEMI Islamic Azad University, Science And Research Branch, İran
Farrokh Gharib Shahid Beheshti University, İran
Hossein Aghaei
Islamic Azad University, Science And Research Branch, İran
Gholamhossein Shafiee Islamic Azad University, Science And Research Branch, İran
Afshin Taghvamanesh Islamic Azad University, Science And Research Branch, İran
Ali Shamel Islamic Azad University, Science And Research Branch, İran
Makale Türü Açık Erişim Özgün Makale (ESCI dergilerinde yayınlanan tam makale)
Dergi Adı Main Group Metal Chemistry
Dergi ISSN 0792-1241 Wos Dergi Scopus Dergi
Makale Dili İngilizce Basım Tarihi 01-2003
Cilt / Sayı / Sayfa 26 / 1 / 39–47 DOI 10.1515/mgmc.2003.26.1.39
Makale Linki http://www.scopus.com/inward/record.url?eid=2-s2.0-0037757869&partnerID=MN8TOARS
Özet
The stability constants of the complexes of thallium(i) ion with some sulphur-containing amino acids (L-cysteine, N-acetyl-L-cysteine, and L-methionine) were determined in aqueous solution in the range 1.4 ≤ pH ≤ 10.5 at 0.1 mol dm-3 ionic media and 25°C, using a combination of potentiometric and spectrophotometric techniques. Sodium perchlorate solution was used to maintain the ionic strength. The compositions of the formed complexes were determined and it was shown that thallium(I) forms two mononuclear 1:1 species with cysteine and methionine of the type TlHL and TlL- and only one mononuclear 1:1 complex with N-acetylcysteine of the type TlL- The logarithms of the cumulative stability constants, βxyz, of the complexes, [(metal ion)x(H) y(ligand)z], are logβ111 and logβ101 =: 11.03, 11.41 (for cysteine), 0.37, 2.19 (for methionine), respectively, and logβ101 = 2.93 for N-acetylcysteine.
Anahtar Kelimeler
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 14
Scopus 13
Thallium(I) complexes of some sulphur-containing ligands

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