Tris-(4,4'-di- tert -butyl-2,2'-bi-pyridine)( trans -4- tert -butyl-cyclo-hexa-nolato)-deca-μ-oxido-hepta-oxido-hepta-vanadium aceto-nitrile monosolvate including another unknown solvent mol-ecule.

The title hepta-nuclear alkoxido(oxido)vanadium(V) oxide cluster complex, [V 7 (C 10 H 19 O)O 17 (C 18 H 24 N 2 ) 3 ]·CH 3 CN, was obtained by the reaction of [V 8 O 20 (C 18 H 24 N 2 ) 4 ] with 4- tert -butyl-cyclo-hexa-nol (mixture of cis and trans ) in a mixed CHCl 3 /CH 3 CN solvent. The complex has a V 7 O 18 N 6 core with approximately C s symmetry, which is composed of two VO 4 tetra-hedra, two VO 6 octa-hedra and three VO 4 N 2 octa-hedra. In the crystal, these complexes are linked together by weak inter-molecular C-H⋯O hydrogen bonds between the 4,4'-di- tert -butyl-2,2'-bi-pyridine ligand and the V 7 O 18 N 6 core, forming a one-dimensional network along the c -axis direction. Besides the complex, the asymmetric unit contains one CH 3 CN solvent mol-ecule. The contribution of other disordered solvent mol-ecules to the scattering was removed using the SQUEEZE option in PLATON [Spek (2015 ▸). Acta Cryst . C 71 , 9-18]. The unknown solvent mol-ecules are not considered in the chemical formula and other crystal data.