Synthesis and crystal structure of polymeric aqua (2,2′-bipyridine)(μ-isonicotinato)copper(II) nitrate dihydrate

Abstract The title complex has been prepared and its crystal structure determined by X-ray diffraction methods. The complex crystallizes in the monoclinic space group P21/c. Cu(II) assumes a square pyramidal coordination geometry, formed by two isonicotinate anions, a bipyridine ligand and a coordinated water molecule. Each isonicotinate bridges two Cu atoms through pyridine-N and carboxyl-O atoms, respectively, to form zigzag polymeric chains. Between the polymeric chains, aromatic stacking and hydrogen bonding are observed. Keywords: Copper(II) complexPolymeric complexCrystal structureAromatic stackingIsonicotinate