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.