Equilibrium and spectroscopic studies of diethyltin(IV) complexes formed with carbohydrate derivatives of thiazolidine-4-carboxylic acid

Norbert Buzás, Béla Gyurcsik, László Nagy, Ying xia Zhang, László Korecz, Kálmán Burger

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38 Citations (Scopus)

Abstract

Coordination of six 2-substituted thiazolidine-4-carboxylic acid derivatives by the diethyltin(IV) cation was studied in aqueous solutions. The formation constants of the complexes MLH, ML and MLOH and of the hydrolysis products of diethyltin(IV) ion were determined by potentiometric equilibrium measurements. The ligands are effective complexing agents with amino acid type coordination in the pH> 5 range, where the mixed hydroxo species MLOH predominates. The polyhydroxyalkyl substituents on the ligand do not show direct coordination to tin(IV), they exert only sterical effects on the process. The solid compounds with composition MLOH show, according to Mössbauer investigations based on the partial quadrupole splitting concept and according to IR spectroscopic studies, trigonal bipyramidal arrangement of the donor atoms around the tin(IV) ion with hydroxide, carboxylate and amine coordination.

Original languageEnglish
Pages (from-to)65-71
Number of pages7
JournalInorganica Chimica Acta
Volume218
Issue number1-2
DOIs
Publication statusPublished - Apr 1994

Keywords

  • Carbohydrate derivative complexes
  • Equilibrium studies
  • Formation constants
  • Tin complexes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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