Leucine Complexes with Cerium: Stability Constants and Thermodynamic Parameters

Autor:	Tuba Şişmanoğlu, Çiğdem İçhedef, Serap Teksöz
Rok vydání:	2011
Předmět:	Ligand General Chemical Engineering Inorganic chemistry Ionic bonding chemistry.chemical_element General Chemistry Metal Cerium chemistry.chemical_compound Monomer chemistry visual_art visual_art.visual_art_medium Electroanalytical method Leucine
Zdroj:	Journal of Chemical & Engineering Data. 56:978-983
ISSN:	1520-5134 0021-9568
DOI:	10.1021/je1009416
Popis:	The complexation of leucine (Leu) with Ce3+ was investigated using the potentiometric method at different ionic strengths (I = (0.10 and 1.00) mol dm−3) in KCl medium at elevated temperatures. The stability constants of the leucine complexes with Ce3+ at metal:ligand (M:L) molar ratios of 1:1, 1:3, and 1:5 were determined. From the data obtained, stability constants were calculated using the program HYPERQUAD2006 for proton−ligand and metal−ligand species. The formation of monomeric species was taken into consideration for Ce3+ at (25, 37, and 45) °C. Thermodynamic parameters were calculated for all possible leucine complexes. In conclusion, it is indicated that the formation of complexes change the value of the stability constants at various ionic strengths and temperatures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::558f8227947fed9b149ae47876ecc4a8 https://doi.org/10.1021/je1009416 Zobrazit plný text záznamu