Abstract

Two novel copper(II) complexes, Cu2L2(bipy) and Cu2L2(H2O)4·3H2O of Schiff base ligands derived from the condensation of L-tert-leucine and L-isoleucine with 2,4-dihydroxybenzal­dehyde, are synthesized and characterized by single crystal X-ray diffraction. Compounds crystallize in the orthorhombic crystal system. The Cu2L2(bipy) complex has a distorted square planar geometry with an N2O2 coordination environment. Water is contained in supra­molecular network pores. On the other hand, in the Cu2L2(H2O)4·3H2O complex, both copper atoms adopt a five-coordinated distorted square-pyramidal geometry with an NO4 coordination environment. and guest water molecules form a 1-dimensional water chain. Both complexes build a two-dimensional supramolecular network.

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