6533b7d6fe1ef96bd1266edd
RESEARCH PRODUCT
Synthesis and Characterization of New Keggin-Based Structure Tungstocobaltates: K9[Co3+W11O39] and its Vanadium Derivatives, K8[Co2+W11V4+O40], K7[Co2+W11V5+O40], and K6[Co3+W11V5+O40]
Juan Server-carrióL. C. W. BakerJulia Bas-serraI. TodorutR. AccreteN. Casañ-pastorsubject
Inorganic ChemistryCrystallographychemistryOctahedronPotassiumYield (chemistry)Infrared spectroscopychemistry.chemical_elementVanadiumPhysical and Theoretical ChemistryCyclic voltammetryLacunary functionIondescription
Abstract Good yield synthesis of the potassium salts of four new interrelated : olyoxometalates, [Co3+W11O39]9-(I), [Co2+W11V4+O4]8-(II), [Co2+W11V5+O40]7-(III), and [Co3+W11V5+O40]6-(IV), are reported. The title compounds have been characterized by IR and UV-Vis.-NIR spectroscopies, cyclic voltammetry and magnetic measurements. IR spectra confirm that I has the lacunary structure of an undecatungstate anion, while II through IV have a substituted α-Keggin structure with the vanadium atom located at an octahedral site replacing one tungsten atom. Optical data confirm the oxidation states for both, the Co and V atoms, as formulated for I through IV.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1995-07-01 | Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry |