Cyanuric chloride reagent as a chloride ion donor: synthesis, crystal structure, and magnetic properties of [Cu2(2-APM)2(μ-Cl)2(μ-OCH3)2]n coordination polymer

Abstract

A new chloro- and methoxo-bridged Cu(II) coordination polymer, [Cu2(2-APM)2(μ-Cl)2(μ-OCH3)2]n·CH3OH (1), was prepared using in situ formed chloride by the decomposition of cyanuric chloride and 2-aminopyrimidine (2-APM) as a ligand in methanol. Its solid-state structure has been characterized by elemental analysis and single crystal X-ray diffraction. X-ray crystallographic studies reveal that this compound has an extended 2-D supramolecular architecture directed by strong hydrogen bonds and aromatic π–π stacking interactions. Compound 1 shows an antiferromagnetic coupling exchange with coupling constants of −58.2 and −41.4 cm−1 between adjacent copper(II) ions, in agreement with the intermetallic distances of 3.0405(5) and 3.6073(5) Å found in the crystal structure.