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Two new Cu(II) complexes namely, Cu(PDC) 2.H 2 O ( 1 ) and {[Cu(1,3-BIP)(PDC)(NO 3 )]·2H 2 O} n  ( 2 ) (1,3-BIP = 1,3-di(1H-imidazol-1-yl)propane; HPDC = 5-methyl-4-oxo-1-phenyl-1,4-dihydropyridazine-3-carboxylic acid) have been sythesized and characterized by single crystal x-ray ananlyses, thermogravietr -ic techniques. The single-crystal x-ray diffraction reveals that complex  1  shows a zero-dimensional structure, which is further reinforced through strong intermolecular hydrogen bonding to form a 3D suparmolecular framework. Complex  2  exhibits a one-dimensional ring structure, which are further linked by intermolecular hydrogen bonding to form a 3D supermolecular architecture. The optimized geometric bond lengths and bond angles of complex  1  obtained by using density functional theory (DFT) have been compared with X-ray diffraction values. In addition, the antimicrobial activity of the complex  1  and the photocatalytic activity of the complex  2  were also investigated.

Two Cu(II) complexes constructed by pyridazine carboxyl derivatives: synthesis, crystal structure and property