Crystal structure of (μ-hydrogen di-sulfato)-μ-oxido-bis-[(4,4'-di-tert-butyl-2,2'-bi-pyridine)-oxidovanadium(IV/V)] aceto-nitrile monosolvate.

The dinuclear oxidovanadium(IV/V) complex, [V(2)(HS(2)O(8))O(3)(C(18)H(24)N(2))(2)]·CH(3)CN or [V(2)O(2)(μ-O)(μ-H(SO(4))(2))(4,4'-(t)Bubpy)(2)]·CH(3)CN (4,4'-(t)Bubpy = 4,4'-di-tert-butyl-2,2'-bi-pyridine), has crystallographic C (2) symmetry and exhibits a distorted octa-hedral geometry around the vanadium center, where the two 4,4'-(t)Bubpy ligands are nearly orthogonal to each other. The two vanadium ions are linked by an oxo anion and a unique protonated sulfate anion [H(SO(4))(2) (3-)]. In the crystal, inter-molecular C-H⋯π and π-π inter-actions between the 4,4'-(t)Bubpy ligands are present, leading to a three-dimensional network.