A 1 : 1 cocrystal of di-mu-chloro-bis{[N-(1-hydroxybut-2-yl)salicylideneiminato-N,O,O ']copper(II)} monohydrate and its methanol solvate

The structure consists of two crystallographically independent and differen tly solvated binuclear complexes, {[Cu2Cl2(C11H14NO2)(2)]. CH4O}.{[Cu2Cl2(C 11H14NO2)(2)]. H2O}. The water and methanol solvate molecules are similarly connected with the complex molecules by two hydrogen bonds. The asymmetric al system of hydrogen bonds breaks up the potential centrosymmetricity of b oth chelate molecules. All copper(II) centres are in a square-pyramidal env ironment, with four short bonds in the basal plane formed by two trans O at oms and one N atom of the tridentate ligand, and a bridge chloride ion. The fifth axial long bond is formed by a chloride ligand which lies in the bas al plane of the neighbouring copper(II) ion.