Anhydrous penta­guanidinium dihydrogen nona­vanado(IV)platinate(IV)

摘要

The title compound, (CH6N3)5[H2PtV9O28], containing the nona­vanadoplatinate(IV) polyanion, was obtained by hydro­thermal reaction. The polyanion has approximate C 2v symmetry. The two Pt-bound μ2-O atoms are protonated in the polyanion. The heteropolyanions form inversion-generated dimers, {[H2PtV9O28]2}¹⁰⁻, held together by each of the two μ2-O—H⋯μ2-O and μ2-O—H⋯μ3-O hydrogen bonds. The guanidinium cations are hydrogen bonded with the μ₂- and terminal O atoms of the polyanion, connecting the polyanions into a three-dimensional network.