Labile interactions effects in self-assembly of new Cu (II) metal-organic coordination system

Metal-organic coordination systems have attracted considerable attention in recent years for their various applications [1]. These materials are built from metal ions (or metallic clusters) and organic ligands. They have great potential due to their ease of processability, flexibility, structural diversity, and geometrical control [2]. The components in coordination compounds mainly exist in a solid state. In solution, small units create building blocks through coordination interactions and weak forces, such as hydrogen bonding, π-π stacking, and van der Waals interactions. Based on these labile interactions, coordination sestems then grow through self-assembly processes [3]. In the present work, we investigate the coordination behaviors of new of Cu(II) coordination systems with pyridin-2-isonicotinohydrazide multifunctional ligand. The arrangement of metal-ligands produces quadric nuclear square ring. The adjacent frameworks connected by strong hydrogen bonding interactions and other labile interactions of adjacent aromatic rings. We describe a simple sonochemical synthesis method for a nano-structure of this compound and its use in the preparation of copper oxide nano-particles