A new 2D Zn(II) metal-organic framework, [Zn2(dib)(1,3-BDC)2(H2O), has been synthesized by the hydrothermal reaction of 1,3-benzenedicarboxylate with ZnSO4·7H2O in the presence of 1,4-di(1-imidazoly)benzene (dib=1,4-di(1-imidazoly)benzene, 1,3-H2BDC=1,3-benzenedicarboxylate). The crystal is of monoclinic system, space group P21/n, with a=0.803 67(12) nm, b=1.332 7(2) nm, c=2.372 5(4) nm, β=97.394(3)°, V=2.519 9(7) nm3, Z=4, F(000)=1 392, R=0.052 0 and wR=0.099 4 (I>2σ(I)). The two central zinc(II) ions in the complex locate in a different c...