The complex-formation processes taking place in the systems containing VO(IV) and D-, L-, DL- or meso-tartaric acid or citric acid in aqueous solution were re-examined by combined use of pH potentiometry and spectroscopic (EPR and electronic absorption) methods, The results allowed a full characterization of the dinuclear species existing in the VO(IV)-D-, L- and DL-tartrate systems and indicated a different complexation behaviour in the corresponding meso-tartrate system. As its conformation is unfavourable for dimer formation, the meso ligand yields predominantly cyclic trinuclear species, one of them exhibiting distinctive EPR features. In the VO(IV)-citrate system, dinuclear species with structures different from those of the VO(IV) tartrates are suggested.

Oxovanadium(IV) complexes of citric and tartaric acids in aqueous solution / Kiss, T; Buglyo, P; Sanna, D; Micera, Giovanni; Decock, P; Dewaele, D.. - In: INORGANICA CHIMICA ACTA. - ISSN 0020-1693. - 239:1-2(1995), pp. 145-153. [10.1016/0020-1693(95)04750-6]

Oxovanadium(IV) complexes of citric and tartaric acids in aqueous solution

MICERA, Giovanni;
1995-01-01

Abstract

The complex-formation processes taking place in the systems containing VO(IV) and D-, L-, DL- or meso-tartaric acid or citric acid in aqueous solution were re-examined by combined use of pH potentiometry and spectroscopic (EPR and electronic absorption) methods, The results allowed a full characterization of the dinuclear species existing in the VO(IV)-D-, L- and DL-tartrate systems and indicated a different complexation behaviour in the corresponding meso-tartrate system. As its conformation is unfavourable for dimer formation, the meso ligand yields predominantly cyclic trinuclear species, one of them exhibiting distinctive EPR features. In the VO(IV)-citrate system, dinuclear species with structures different from those of the VO(IV) tartrates are suggested.
1995
Oxovanadium(IV) complexes of citric and tartaric acids in aqueous solution / Kiss, T; Buglyo, P; Sanna, D; Micera, Giovanni; Decock, P; Dewaele, D.. - In: INORGANICA CHIMICA ACTA. - ISSN 0020-1693. - 239:1-2(1995), pp. 145-153. [10.1016/0020-1693(95)04750-6]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11388/47146
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 83
social impact