Crystal structure of {2,2′-[ethylenebis(nitrilomethanylylidene)]diphenolato-κ4 O,N,N′,O′}oxidovanadium(IV) methanol monosolvate
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چکیده
Two independent mol-ecules of the title solvated complex, [V(C16H14N2O2)O]·CH3OH, also known as [N,N'-bis-(salicyl-idene)ethyl-enedi-amine]-oxidovanadium(IV) or vanadyl salen, crystallize in the asymmetric unit. Each disordered methanol solvent mol-ecule [occupancy ratios 0.678 (4):0.322 (4) and 0.750 (5):0.250 (5)] is linked to a [N,N'-bis-(salicyl-idene)ethyl-enedi-amine]-oxidovanadium(IV) mol-ecule by an O-H⋯O hydrogen bond and to others by C-H⋯O hydrogen bonds. The resulting extended structure consists of a bilayer of mol-ecules parallel to the ab plane. Despite the fact that solvates are common in complexes derived from substituted analogues of the N,N'-bis-(salicyl-idene)ethyl-enedi-amine ligand, the title solvate is the first one of [N,N'-bis-(salicyl-idene)ethyl-enedi-amine]-oxidovanadium(IV) to be structurally characterized. The two vanadyl species have very similar inter-nal geometries, which are best characterized as distorted square-based pyramidal with the vanadium atom displaced from the N2O2 basal plane by 0.5966 (9) Å in the direction of the doubly-bonded oxide ligand.
منابع مشابه
{2,2′-[Ethylenebis(nitrilomethylidyne)]diphenolato-κ4 O,N,N′,O′}oxidovanadium(IV)
The title compound, [V(C(16)H(14)N(2)O(2))O], was synthesized by the reaction of vanadyl(IV) sulfate and N,N'-bis-(salicyl-idene)ethyl-enediamine under hydro-thermal conditions. The asymmetric unit contains two mol-ecules. Each V(IV) atom is coordinated in a square-pyramidal geometry by two N atoms and two O atoms from a ligand in the basal plane and by an oxide O atom in the apical position. W...
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