Chiral Molecular Ferromagnets Based on Copper(II) Polymers with End-On Azido Bridges

Two homochiral two-dimensional brick-wall complexes with only end-on azido bridges, [Cu₃((R)-phea)₂(N₃)₆]_n (1) and [Cu₃((S)-phea)₂(N₃)₆]_n (2) (phea = 1-phenylethylamine), have been synthesized and structurally characterized. Magnetic studies show that both complexes are chiral ferromagnets with the magnetic transition temperature at 5.5 K.