title: Crystal structure of penta-potassium di-hydrogen nona-vanadato(V)platinate(IV) nona-hydrate.
abstract: The title compound, K5[H2PtV9O28]·9H2O, containing the nona-vanado-platinate(IV) polyanion, was obtained by hydro-thermal reaction at pH = 4.2. The polyanion has approximate mm2 (C 2v ) symmetry. The two platinum-bound μ2-O atoms are protonated in the polyanion. The heteropolyanions form inversion-generated dimers, {[H2PtV9O28]2}(10-), held together by μ2-O-H⋯μ2-O and μ2-O-H⋯μ3-O hydrogen bonds. All K(+) cations are located on general positions of the space group P-1.
authors.affiliation: Department of Chemistry, Pukyong National University, 599-1 Daeyeon 3-dong, Nam-gu, Busan 608-737, Republic of Korea.
authors.forename: Hea-Chung
authors.initials: HC
authors.lastname: Joo
authors.affiliation: Department of Chemistry, Pukyong National University, 599-1 Daeyeon 3-dong, Nam-gu, Busan 608-737, Republic of Korea.
authors.forename: Uk
authors.initials: U
authors.lastname: Lee
keywords: crystal structure; heteropolyanions; hydrogen bonding; nona­vanadoplatinate(IV) polyanion