Structure and magnetic properties of the hybrid system copper(II) mu2-2,2'-bipyridine-3-carboxylate-N,N':O-mu2-phosphate-O,O'.

The title compound [Cu(PO4H2)(C11H7N2O2)]n presents antiferromagnetic behavior. It has a polymeric one-dimensional structure in which the elemental links are tetranuclear units and the doubly protonated phosphates and the bipyridinemonocarboxylates act in a bridging mode. The magnetic behavior is described using an alternating chain model, with J = -3.32 cm (-1), alpha = 0.7, and g = 2.05.