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RESEARCH PRODUCT
Complexes of Tungsten(VI) with Mucic Acid: a Spectrophotometric and Polarimetric Study in Aqueous Solution
Antonio CervillaJ. A. RamirezElisa Llopissubject
Aqueous solutionChemistryStereochemistryInorganic chemistrychemistry.chemical_elementMucic acidCarbon-13 NMRTungstenInorganic ChemistryDissociation constantchemistry.chemical_compoundMonomerMaterials ChemistryPhysical and Theoretical ChemistryStoichiometrydescription
Abstract Spectrophotometric work on mucic acid-W(VI) system shows the formation of three different oxoanion complexes in aqueous solution; their stability is dependent upon pH. One of the complexes is monomeric tungstodimucate and the other two are 2/2 species. An anomalous cryoscopic behaviour, similar to that of W(VI) tartaric system, has been observed for the dimeric complex formed at higher pH. The stoichiometries and conditional dissociation constants have been polarimetrically determined by means of competitive reactions between the mucic and tartaric ligands. 1 H and 13 C NMR spectra have been interpreted for the similar complex species of both mucic and tartaric acids.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1986-09-01 | Inorganica Chimica Acta |