Capturing Axially Chiral Conformations of 2,2′-bipyridine in [Mn(II)(2,2′-bpy)(HCO 2 ) 2– x (N 3 ) x ] via Spontaneous Resolution

The axially chiral conformations of 2,2′-bipyridine are, for the first time, captured and isolated in individual crystals of a new family of three-dimensional coordination polymers [Mn(II)(2,2′-bpy)(HCO 2 ) 2– x (N 3 ) x ] ( x = 0.3–0.7) upon an unusual spontaneous resolution. Furthermore, the Mn(II)···Mn(II) magnetic exchange can be tuned by control of the ratio of N 3 – /HCO 2 – .