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Title: | A potentiometric study on the complexation of Ag(I) with various N-methyl and C-methyl substituted ethylenediamines in 1-M NO3- | Authors: | GARNER, R YPERMAN, Jan MULLENS, Jules VAN POUCKE, Lucien |
Issue Date: | 1994 | Publisher: | ELSEVIER SCIENCE SA LAUSANNE | Source: | INORGANICA CHIMICA ACTA, 224(1-2). p. 97-104 | Abstract: | The complexation of Ag(I) with five different N-methyl substituted, two C-methyl substituted ethylenediamines and ethylenediamine itself is studied using potentiometric pH and pAg measurements in 1 M KNO3 at 25.0-degrees-C. Mononuclear complexes, polynuclear complexes and their protonated forms are detected and the respective stability constants are tabulated. The stability constant of a given species generally decreases as the methylation increases on the terminal amino groups probably due to an increased steric hindrance. The number of species also decreases as the methylation increases. The stability constants of the ethylenediamines are also compared with previously determined stability constants of Ag(I)-propylenediamine complexes and some relationships are identified. | Notes: | GARNER, R, LIMBURGS UNIV CTR,INORGAN & PHYS CHEM LAB,B-3590 DIEPENBEEK,BELGIUM. | Keywords: | POTENTIOMETRIC TITRATION; STABILITY CONSTANTS; SILVER COMPLEXES; DIAMINE COMPLEXES | Document URI: | http://hdl.handle.net/1942/3739 | ISI #: | A1994PH02200012 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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