Complexes with a tridentate aroylhydrazone ligand: Microwave solid-state synthesis, crystalline architectures through supramolecular interactions and electrochemical properties

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A series of complexes, [CuLCl]·1·5H2O (1); [ML2]·X (X=0, M=Cd, 2a; X=DMF, M=Hg, 2b; X=DMF, M=Ni, 2c); [Cu2(OOCCH3)2L2]·2CH3OH (3) have been synthesized by microwave solid-state method with a tridentate aroylhydrazone ligand HL (HL=N3-salicyloylpyridine-2-carboxamidrazone). All these compounds were characterized by element analysis, IR, X-ray diffraction and electrochemistry. Crystal analysis revealed that the coordination molecules extended to 3D supramolecular networks through plentiful H-bondings and weak molecular interactions between the ligand moieties and solvent molecules. Meanwhile, these compounds displayed diverse metal or ligand localized electrochemical properties.