Structure-induced luminescence and bioactivities of Zinc(II) complexes with 2-(2,4-dichlorophenoxy)-N′-[pyridin-2-ylmethylene]acetohydrazide

Abstract

The structure and photophysical properties of the series of Zn(II) complex with the hydrazone ligand, 2-(2,4- dichlorophenoxy)-N′ _-[1-pyridin-2-ylmethylene]acetohydrazide, and different counter anions have been synthesized and characterized by single crystal X-ray diffraction, FT-IR, elemental analyses and ESI-MS. X-ray crystallography has proved the neutral or monoanionic form of ligand upon coordination. All complexes are mononuclear with the tetra/penta/hexacoordinated zinc atoms. The diverse supramolecular architectures of the complexes show that counter-anions have significant impacts on the structures. Furthermore DFT, luminescence properties, antibacterial and herbicide activities of the complexes have been investigated were carried out as well. The structure and photophysical properties of the series of Zn(II) complex with the hydrazone ligand, 2-(2,4- dichlorophenoxy)-N′ _-[1-pyridin-2-ylmethylene]acetohydrazide, and different counter anions have been synthesized and characterized by single crystal X-ray diffraction, FT-IR, elemental analyses and ESI-MS. X-ray crystallography has proved the neutral or monoanionic form of ligand upon coordination. All complexes are mononuclear with the tetra/penta/hexacoordinated zinc atoms. The diverse supramolecular architectures of the complexes show that counter-anions have significant impacts on the structures. Furthermore DFT, luminescence properties, antibacterial and herbicide activities of the complexes have been investigated were carried out as well.