Inorganic/organic hybrid salts derived from polyoxovanadates and macrocyclic (OxN2) cations

Chemoprotective activity of mixed valence polyoxovanadates against diethylsulphate in E. coli cultures: insights from solution speciation studies

Cell survival after treatment with dimethylsulphate in the presence of polyoxovanadates.

Bis{4,4'-[oxalylbis(aza-nedi-yl)]dipyridinium} octa-molybdate

In the crystal structure of the title compound, (C(12)H(12)N(4)O(2))(2)[Mo(8)O(26)], the amino and pyridinium groups of the N(1),N(2)-di(pyridinium-4-yl)oxalamide cations are hydrogen bonded to the O atoms of the centrosymmetric isopolyoxometalate β-[Mo(8)O(26)](4-) anions, forming a three-dimensional supra-molecular architecture.

Hexakis(tetra-aqua-sodium) deca-vanadate(V) dihydrate

The title compound, {[Na(H₂O)₄]₆[V₁₀O₂₈]·2H₂O}_n, crystallized from a H₂O/THF/CH₃CN solution (pH ca 6) containing equimolar amounts of NaVO₃ and N-(2-hydroxy­benz­yl)-N-(2-picol­yl)glycine. In the crystal structure, the deca­vanadate [V₁₀O₂₈]⁶⁻ anion ( symmetry) is coordinated, via four terminal oxide ligands of V centres, to two dinuclear [{Na(H₂O)₃}₂(μ-H₂O)₂]²⁺ units. Inter­connection of these aquasodium-ion-sandwiched deca­vanadates to chains parallel to [001] is effected by μ-[{Na(H₂O)₃}₂(μ-H₂O)₂]²⁺ units, bridging adjacent deca­vanadates via O=V. The structure is consolidated by an extensive network of O—H⋯O hydrogen bonds.