Stability constants aminocarboxylates

It is necessary, therefore, to examine data pertaining to complex formation constants of rare earth ions with ligands. The readily available data with some aminocarboxylic acid are given in Table 1.19. There is a significant difference in the stability constant values of... 

A large number of stability constants for mixed complexes of the type TKIIDLX, where L = aminocarboxylate or polyamine, have been determined by Musso (109). 

The polyesters have then been transformed into their respective poly a-aminocarboxylic acids. These multidentate ligands poly-A propyleneglycine L- and DL- as well as poly-l-isopropyl-2-carboxyl-ethylenimine and poly-7V-ethylenealanine have then been examined as to their properties as metal complexating agents. The metal complexation stability constants of these polyampholytes are interpreted in the light of their structural differences, they show a four fold coordination with respect to the examined bivalent metal ions. Poly-A-piopyleneglycine has also been incorporated in cross-linked resin structures and the complexation behavior towards Zn, Cu, Ca and Mg has been determined. 

Ni(II) by strong oxidants, such as OH, Br and (SCN), produced by pulse radiolysis and flash photolysis. Rate constants are 10 M" s for oxidation by OH and Brf and = 10 M s for (SCN)f Ref. 259. The most popular means of production in both aqueous and nonaqueous solution is electrolytic, jjjg ligands which stabilize Ni(III) are cyanide, deprotonated peptides, amines and aminocarboxylates, a-diimines and tetraaza macrocycles, including porphyrins. Low spin d Ni(III) resembles low spin Co(II). The kinetics of the following types of reactions have been studied ... 

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