{2-[Bis(1-methyl-2-benzimidazolylmethyl)amino]-ethanol}chlorocopper(II) Chloride Hydrate

During the multi-step synthesis of a novel and potentially binucleating ligand, the title complex, [CuCl(C₂₀H₂₃N₅O)]Cl.H₂O, was obtained and structurally characterized. The analysis revealed a distorted five-coordinate square-pyramidal coordination geometry about Cu, with three N atoms and one Cl ion in the basal plane and the hydroxy group, which remains protonated, at the apical position [Cu-O 2.278 (2) Å].

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