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

Norbert Buzás, B. Gyurcsik, László Nagy, Ying xia Zhang, L. Korecz, Kálmán Burger

Research output: Contribution to journalArticle

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 - 1994

Fingerprint

Tin
carbohydrates
Carbohydrates
Carboxylic acids
carboxylic acids
Ligands
Ions
Derivatives
Amines
Cations
Amino acids
Hydrolysis
tin
Positive ions
Amino Acids
Atoms
ligands
Chemical analysis
carboxylates
hydroxides

Keywords

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

ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

Equilibrium and spectroscopic studies of diethyltin(IV) complexes formed with carbohydrate derivatives of thiazolidine-4-carboxylic acid. / Buzás, Norbert; Gyurcsik, B.; Nagy, László; Zhang, Ying xia; Korecz, L.; Burger, Kálmán.

In: Inorganica Chimica Acta, Vol. 218, No. 1-2, 1994, p. 65-71.

Research output: Contribution to journalArticle

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AU - Nagy, László

AU - Zhang, Ying xia

AU - Korecz, L.

AU - Burger, Kálmán

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N2 - 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.

AB - 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.

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