Stabilization of two conformers intra- or inter-molecular hydrogen bonds in a dinuclear vanadium(v) complex with a pendant Schiff base: theoretical insight.

A dinuclear vanadium(v) complex, (μ-O)[V(O)(L)], [where HL = 2-methoxy-6-((2-(2-hydroxyethylamino)ethylimino)methyl)phenol] has been synthesized and characterized by spectral and elemental analysis. A single crystal X-ray diffraction study confirms it structure. Two different conformations, stabilized either intra- or inter-dinuclear hydrogen bonding interactions, co-exist in the solid-state structure.

Analysis of energies of halogen and hydrogen bonding interactions in the solid state structures of vanadyl Schiff base complexes.

Two mononuclear and two dinuclear vanadium(v) complexes, [VOL] (1), [VOL] (2), (μ-O)[V(O)(L)] (3) and (μ-O)[V(O)(L)]·2HO (4), where HL = 4-bromo-6-[(2-phenylaminoethylimino)methyl]phenol, HL = 2-((2-(diethylamino)ethylimino)methyl)-4-chlorophenol, HL = 2-((2-(ethylamino)ethylimino)methyl)-4-chlorophenol and HL = 2-(1-(2-(ethylamino)ethylimino)ethyl)phenol have been synthesized and characterized. Structures of all complexes have been confirmed by single crystal X-ray diffraction studies. Complexes 1, 2, and 3 exhibit significant halogen bonding interactions in their solid state structures.