what is step wise stability constant and overall stability constant ? how are these two constants related ?
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Journal of Inorganic and Nuclear Chemistry
Volume 36, Issue 1, January 1974, Pages 107-113
A correlation between the overall stability constants of metal complexes—I: Calculation of the stability constants using the formation function n
Author links open overlay panelM.H.Mihailov
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https://doi.org/10.1016/0022-1902(74)80667-6Get rights and content
Abstract
A mathematical model concerned with the formation of a stepwise series of mononuclear complexes of the metal Mm+and the ligand L− has been formulated. The model leads to the following expression connecting the overall stability constants of the MLn complexes formed in the solution: βn=A · where:
βn=A·ann!
is the overall stability constant of the MLncomplex; n is the number of ligands in a particular complex, (I ⩽ n ⩽ N); N is the coordination number of the complex forming metal M; A and a are constants.
The applicability of Eqn (1) has been demonstrated for nine metal-ligand systems. The results obtained indicate that for these systems the formation function ñ calculated using a set of stability constants related according to Eqn (1) coincides satisfactorily with the ñ calculated using the βn values reported for the given metal-ligand system.
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Journal of Inorganic and Nuclear Chemistry
Volume 36, Issue 1, January 1974, Pages 107-113
A correlation between the overall stability constants of metal complexes—I: Calculation of the stability constants using the formation function n
Author links open overlay panelM.H.Mihailov
Show more
https://doi.org/10.1016/0022-1902(74)80667-6Get rights and content
Abstract
A mathematical model concerned with the formation of a stepwise series of mononuclear complexes of the metal Mm+and the ligand L− has been formulated. The model leads to the following expression connecting the overall stability constants of the MLn complexes formed in the solution: βn=A · where:
βn=A·ann!
is the overall stability constant of the MLncomplex; n is the number of ligands in a particular complex, (I ⩽ n ⩽ N); N is the coordination number of the complex forming metal M; A and a are constants.
The applicability of Eqn (1) has been demonstrated for nine metal-ligand systems. The results obtained indicate that for these systems the formation function ñ calculated using a set of stability constants related according to Eqn (1) coincides satisfactorily with the ñ calculated using the βn values reported for the given metal-ligand system.
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