Electrostatic and non-electrostatic thermodynamic quantities of reaction of bivalent metal ions with ethylenediaminetetraacetate

Murakami, Sadaaki; Yoshino, Takashi

doi:10.1016/0022-1902(81)80549-0

Cited by 10 publications

(10 citation statements)

References 23 publications

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“…A short account of their significance is given here; fuller details and the equations for their calculation have been reported and discussed previously (16)(17)(18). The electrostatic contribution represents long-range electrostatic interactions, which are affected by the dielectric nature of the solvent and by the temperature.…”

Section: Experimental Data and Parametersmentioning

confidence: 99%

“…The nonelectrostatic contribution is determined by all the short-range factors, independent of dielectric constant and temperature. Thus it is mainly determined by solute-solute covalent bonds and by Can (17,18). Enthalpy of proton dissociation in aqueous solution, following the treatment of Hepler (3,4), can also be considered in terms of "internal" and "external" (or environmental) contributions.…”

Section: Experimental Data and Parametersmentioning

confidence: 99%

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Proton dissociation of aqueous organic acids studied by multivariate chemometrics

Aruga¹

1995

Can. J. Chem.

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Thermodynamic data of proton dissociation of 75 organic acids belonging to four classes (protonated amines, aliphatic carboxylic acids, benzoic acids, phenols) have been processed by multivariate chemometric techniques. The variables consist of conventional thermodynamic quantities (Gibbs function, enthalpy, entropy) and of partial components of these quantities (internal and external, electrostatic and nonelectrostatic components). The above data refer to the aqueous medium, at 25OC and I = 0 mol dm-3. The Gibbs function of deprotonation in the gas phase and the Hammett a constant have also been considered. Multivariate techniques include Principal Component Analysis, Factor Analysis, and feature selection. Factor Analysis and related concepts have proved to be useful in defining the causes of differences in acid strengths and their respective importance.

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Section: Experimental Data and Parametersmentioning

confidence: 99%

Section: Experimental Data and Parametersmentioning

confidence: 99%

Proton dissociation of aqueous organic acids studied by multivariate chemometrics

Aruga¹

1995

Can. J. Chem.

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“…Refening to previous papers for fuller details (2,(9)(10)(11)(12), it may be observed that the equilibrium constant for a general complex formation reaction…”

Section: Treatment Of the Experimental Datamentioning

confidence: 99%

“…On this basis several authors consider only the unitary part as a characteristic and specific quantity for every single reaction (2,10). In general, the use of K" is recommended when Unitary AGO may be divided into the electrostatic part (AGil) and the nonelectrostatic part (AG,",,) (2,4,8,9). AGtl represents long-range electrostatic interactions, which are affected by the dielectric nature of the solvent and by the temperature.…”

Section: Treatment Of the Experimental Datamentioning

confidence: 99%

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Electrostatic and nonelectrostatic, conventional and unitary thermodynamic quantities of reaction. I. Metal–ligand reactions in aqueous solvent

Aruga¹

1986

Can. J. Chem.

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ROBERTO ARUGA. Can. J. Chem. 64,780 (1986). A calculation method of the electrostatic and nonelectrostatic parts of thermodynamic quantities of reaction, previously proposed and applied to complex-formation reactions of aminic and carboxylic ligands, is applied, in the present work, to association reactions of several other ligands. In particular, to check its reliability, this method is applied to AGO, AH', and AS0 data of literature for the formation of metal-anion pairs and for associations of metals with ligands containing pyridine nitrogen, ethereal oxygen, or thioethereal sulfur. Experimental data referring only to aqueous solutions are considered. The results obtained by this method are in agreement, in most cases, with those expected for the reactions examined. Therefore, it seems reliable and useful for a more significant interpretation of conventional thermodynamic parameters.ROBERTO ARUGA. Can. J. Chem. 64, 780 (1986).Dans le present travail, on applique a des reactions d'association de plusieurs autres ligands la methode de calcul des composantes tlectrostatiques et non-Clectrostatiques de quantitts thermodynamiques de rtactions, qui avait ett proposee et appliquee anttrieurement a des reactions de formation de complexes de ligands amines et acides carboxyliques. Dans le but d'evaluer la fiabilite de cette mtthode, on l'a appliquee en particulier a des donnees de AGO, AH' et AS' relatives a la formation de paires de metal-anion et a des associations de mitaux avec des ligands contenant l'azote d'une pyridine, l'oxygene d'un tther et le soufre d'un thiotther. On a considere des donnies experimentales se referant uniquement a des solutions aqueuses. Dans la plupart des cas, les resultats obtenus avec cette mtthode sont en accord avec ceux que I'on pourrait esptrer pour les reactions examinees. La methode semble donc fiable et utile pour une interpretation significative des parametres thermodynamiques conventionnels.[Traduit par la revue]

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Complexes with Amine-N-polycarboxylic Acids

Koeber¹,

Köttelwesch²,

Schneider³

et al. 1987

Mn Manganese D 5

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Electrostatic and non-electrostatic thermodynamic quantities of reaction of bivalent metal ions with ethylenediaminetetraacetate

Cited by 10 publications

References 23 publications

Proton dissociation of aqueous organic acids studied by multivariate chemometrics

Proton dissociation of aqueous organic acids studied by multivariate chemometrics

Electrostatic and nonelectrostatic, conventional and unitary thermodynamic quantities of reaction. I. Metal–ligand reactions in aqueous solvent

Complexes with Amine-N-polycarboxylic Acids

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