An azido–metal–isonicotinate complex showing long-range ordered ferromagnetic interaction: synthesis, structure and magnetic properties

Abstract

A new 3D Cu^II complex [Cu_1.5(N₃)₂(isonicotinate)]_n [1], which features two types of bridging modes for azide (μ_1,1 and the rare asymmetric μ_1,1,3) where the three bonds of the μ_1,1,3-N₃⁻ group to Cu exhibit three different distances, has been synthesized and characterized, and magnetic measurements indicate that [1] experiences long-range ferromagnetic ordering at approximately 6 K.