Complex [Cu(2,6⁃pidic)(H2O)2]2 was synthesized to obtain monocrystals using the hydrothermal method, whose space group P⁃1. The crystallographic data shows that a=0.469 92(2) nm, b=0.893 20(3) nm, c=1.030 36(6) nm. Each structure cell contains two molecules, one of which is isolated from the other. Coordination number of the center copper ions is five. Complex magnetic susceptibility measurement confirmed the antiferromagnetic interactions between the Cu2+ ions.