engleski

Ca_2(H_3O)_2[V_1_0O_2_8_]ˇ16H_2O

The crystal structure of dicalcium bis(oxonium) decavanadate hexadecahydrate has been determined by X-ray analysis. The main feature of the structure is the [V_1_0O_2_8]^6^- anion, built up from ten distorted edge-sharing VO_6 octahedra with well established structures. Each Ca^2^+ ion is surrounded by seven water molecules in the form of a distorted pentagonal bipyramid. Water H atoms, as well as those of the H_3O^+ ions, participate in a complicated three-dimensional hydrogen-bonding system.

crystal structures; hydrogen bond

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