A novel two-dimensional copper(ii)–radical complex [Cu(NITmPy)2(N3)2]n: structure and magnetic properties

Abstract

A two-dimensional copper(II)–radical complex [Cu(NITmPy)₂(N₃)₂]_n (NITmPy = 2-(3′-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide) has been prepared and characterized by X-ray crystallography. The crystal structure consists of neutral polymeric sheets in which each copper atom is bridged by the oxygen and nitrogen atoms of the NITmPy radical ligands. The variable-temperature magnetic susceptibility data show that the complex exhibits ferromagnetic interactions. The magnetic behavior is discussed in connection with the crystal structure.