6533b837fe1ef96bd12a30ed
RESEARCH PRODUCT
Violurato complexes of nickel(II). Formation equilibria. Deprotonation equilibria of the coordinated ligands and related stereochemical changes
Enrique García-españaJuan FausJosé M. Moratalsubject
Aqueous solutionChemistryStereochemistryOrganic solventMetals and Alloyschemistry.chemical_elementMedicinal chemistryCatalysisInorganic ChemistryNickelchemistry.chemical_compoundDeprotonationStability constants of complexesMaterials ChemistryHydrateOrganometallic chemistrydescription
The formation equilibria of nickel(II) violurato-complexes in water and dimethylsulphoxide-water (80∶20) as well as deprotonation of the coordinated ligands and related stereochemical changes are reported. The stability constants of the Ni2+-H2V− complexes logβ1=5.06, Iogβ2=9.38, logβ3=12.98 as well as the acidity constants of the [Ni(H2V)3]− complex, logβj1= 8.37, logβj2=15.76, logβj3=22.37 are determined at 25 °C and 0.1M NaClO4. A new violurato-complex of Ni2+, Na4[Ni(HV)3]5H2O, is isolated and characterized.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1986-01-01 | Transition Metal Chemistry |