engleski

Synthesis, structure and ESR spectrum of (Hmorph)6[VIV, VV, Mo10)VO40] · 3H2O

The title compound has been synthesized from molybdenum(VI) oxide and ammonium vanadate in aqueous solution by adding morpholine (pH 5.8). The X-ray structural investigation shows that the polyoxometalate anion adopts a Keggin-type structure with a central tetrahedral vanadium (V) atom. The other two vanadium atoms are crystallographically disordered over 12MO(6) octahedral sites. The ESR spectrum clearly indicates that one octahedrally coordinated vanadium atom has the oxidation number +4.

vanadium ; heteropoly

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