Journal of the Chemical Society A Inorganic Physical Theoretical · 1970 · 21 citations · 0 references
Natural SciencesBiochemistryChemistryAnalytical ChemistryInorganic ChemistryPhysical ChemistryCoordination ChemistryMetal StabilityMetal-ligand BondingTransition Metal ComplexesCation Coordination ChemistryChelate Stability ConstantsChelation StudiesComplexation ChemistryStability Constants
The stability constants for mixed complex formation in aqueous solution between certain metal–EDTA complexes and various unidentate ligands have been obtained from spectrophotometric measurements. The results can be interpreted to obtain the proprotion of a parent metal–EDTA complex which is sexidentate, the remaining part being aquoquinquedentate. Proportions of EDTA complexes in the sexidentate form at 25·0° and l= 1·00M are cobalt(II), 76%; nickel(II), 75%; copper(II), 62%; and lead(II), ca. 70%.