Proton and zinc(II) complexes of 2-(polyhydroxyalkyl)thiazolidine-4-carboxylic acid derivatives

T. Gajda, László Nagy, Kálmán Burger

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Abstract

The protonation and zinc-ion co-ordination equilibria of 2-(polyhydroxyalkyl) thiazolidine-4-carboxylic acid derivatives have been studied by potentiometric titration in the range pH 1.5-8. In most cases the formation of complexes with a metal-to-ligand ratio of 1:2 was demonstrated, but at above pH 6 mixed-ligand complexes involving hydroxide-ion co-ordination were also observed. The protonation and complex-formation constants were shown to depend on the structure of the polyhydroxy chains. In the case of the protonation constants this is due to the rearrangement of the intramolecular hydrogen-bonding network, while the complex-formation constants depend on the conformation of the OH groups on the first carbon atoms of the polyol chains.

Original languageEnglish
Pages (from-to)3155-3160
Number of pages6
JournalJournal of the Chemical Society, Dalton Transactions
Issue number11
DOIs
Publication statusPublished - 1990

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Protonation
Protons
Zinc
Derivatives
Ligands
Titration
Conformations
Hydrogen bonds
Carbon
Metals
Ions
Atoms
thiazolidine-4-carboxylic acid

ASJC Scopus subject areas

  • Chemistry(all)

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Proton and zinc(II) complexes of 2-(polyhydroxyalkyl)thiazolidine-4-carboxylic acid derivatives. / Gajda, T.; Nagy, László; Burger, Kálmán.

In: Journal of the Chemical Society, Dalton Transactions, No. 11, 1990, p. 3155-3160.

Research output: Contribution to journalArticle

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