A spherical potassium-capped vanadium methylphosphonate as another epsilon-Keggin fragment, [H6KV12O27(VO4)(PO3CH3)(3)](5-)

Yamase T; Makino H; Naruke H; Wery AMS

Chemistry Letters, Vol.29, No.12, 1350-1351, 2000

Yamase T, Makino H, Naruke H, Wery AMS

An [H3KV12O27(AsO4)(4)](6-)-isostructural epsilon -Keggin fragment anion, [H6KV12O27(VO4)(PO3CH3)(3)](5-), was photochemically prepared. This Kf-capped anion is formally built of nine (VO6)-O-IV octahedra, three PO3C tetrahedra, and four (VO4)-O-V tetrahedra, one of the latter being a central VO43- group. The capping K+ cation lies on the C-3 axis and links two adjacent anion, to form a linear chain of the anions along c-axis.