A new copper(II) complex Cu2(L)4(2,2′-bipy) 2(H2O)2 (1) has been synthesized with 2-benzoylbenzoic acid (HL) and 2,2′-bipyridin as ligands. The crystal belongs to a monoclinic system with space group Cc, a = 13.9979(11), b = 15.9888(13), c = 30.306(3) Å, β = 100.8700(10)°, V = 6661.1(10) Å3, Dc = 1.372 g/cm3, Z = 8, F(000) = 2840, the final GOOF = 1.018, R = 0.0685, and wR = 0.1731. There are two mononuclear Cu(L)2(2,2′-bipy)(H2O) units in the crystal of 1. Each Cu(II) cation is coordinated by five atoms. The magnetic and fluorescent pro...