Protonation and silver(I) complex-formation equilibria of some amino-alcohols

Silvia Canepari, Vincenzo Carunchio, Paola Castellano, Antonella Messina

Research output: Contribution to journalArticle

Abstract

Formation constants of the silver(I) complexes with some amino-alcohols have been determined at 25°C in 0.5 M KNO3 by means of two independent potentiometric measurements employing glass and silver electrode. The ligands considered are: sec-butylamine, 2-amino-1-propanol, 2-amino-1-methoxy-propane, 2-amino-2-methyl-1-propanol, 2-amino-1-butanol, 2-amino-1-pentanol, 2-amino-1-hexanol, 2-amino-1,3-propanediol, 2-amino-1,3-hexandiol, 2-amino-2-methyl-1,3-propanediol and Tris(hydroxymethyl)-aminomethane. Protonation constants of the selected ligands have also been determined. Calculations were made using HYPERQUAD computer program. The influence exerted by the introduction of hydroxy groups and by the presence of alkyl residuals in the ligand structure on the formation equilibria, is discussed.

Original languageEnglish
Pages (from-to)2059-2067
Number of pages9
JournalTalanta
Volume44
Issue number11
DOIs
Publication statusPublished - Nov 1997

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Keywords

  • Amino-alcohols
  • Complex formation equilibria
  • Silver(I)

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

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