Assembly reaction of copper(I) chloride, 2,2`-bipyridine-3,3`-dicarboxylic acid (H2L) and 2,2`-bipyridine results in the formation of a new complex [Cu2(C12H6O4N2)2(2,2`-bipy)2] ・CH3OH (1). In 1, two L2− ligands link two Cu(II) ions to form a dinuclear structure. The electrochemical and magnetic properties of 1 were investigated. The results show that the electron transfer is irreversible in the electrode reaction, corresponding to Cu(II)/Cu(0). 1 is paramagnetic and exhibits a weak antiferromagnetic coupling.