Emf(H) data analysis of weak metallic complexes using reduced formation functions

Autor:	Enrique J. Baran, Alfredo Mederos, Ma.Teresa Armas, Rita Hernández-Molina, Felipe Brito, Erasmo Chinea, Vito Lubes, Mary Lorena Araujo, A. D’Ascoli, Pedro Gili, Sixto Domínguez
Rok vydání:	2005
Předmět:	Metal Hydrolysis General method Ligand Computational chemistry Chemistry visual_art Materials Chemistry visual_art.visual_art_medium Physical chemistry Protonation Physical and Theoretical Chemistry Ion
Zdroj:	Journal of Coordination Chemistry. 58:501-512
ISSN:	1029-0389 0095-8972
DOI:	10.1080/00958970500037433
Popis:	A general method for the study of weak metal complexes by emf(H) measurements has been developed using reduced formation functions instead of classical formation functions. This approach consists of subtracting the contribution of the products of the hydrolysis (protolysis) of the metallic cation (anion), as well as the possible protonated species of the ligand from the total number of associated H+, and from the total concentrations of metal or ligand, observing only the contribution of the reaction of interest. This was carried out using the FONDO version of the generalized least-squares computer program LETAGROP, written to analyze these reduced formation functions. The aim of this communication was to show in greater detail than in previous publications the data analysis of reactions in solution using these reduced formation functions. The method is illustrated using emf(H) data for the three-component systems H+–Be(II)–serine, H+–Mo(VI)–NTA and H+–V(IV)–V(V) investigated recently.
Databáze:	OpenAIRE
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