Crystal and molecular structure of di-mu-chlorobis[N-(2-hydroxyethyl)salicylideneiminato-N,O,O' copper(II)] methanol solvate

The structure of the title compound, [Cu2Cl2(C9H10NO2)(2)]. CH3OH, has been determined from single crystal X-ray diffraction data. The dinuclear units crystallize in the orthorhombic space group P2(1)2(1)2(1) With 4 formula units in a cell of dimensions: a = 9.707(1), b = 11.785(2), c = 19.843(3)Angstrom. The notable feature of the molecular structure is that it is dimeric with distorted square-pyramidal geometry at each copper center. The two bridges are formed by C11 and Cl2 atoms where Cl1 is equatorial to Cu1 and apical to Cu2 and vice versa for atom Cl2. The apical Cu1-C12 and Cu2-C11 distances are 2.778(2) and 2.700(2)Angstrom, respectively. The Cu1-Cu2 separation is 3.417(1)Angstrom in the dimers. The geometry of the ligands and hydrogen bonds are discussed.