The novel complex [Zn_2(Mba)_3(Phen)_2EtOH)]·ClO_4 (Hmba=methoxybenzoic acid, Phen=1,10-phenanthroline, EtOH=ethanol) was synthesized by hydrothermal reactions, and its structure was determined by X-ray diffraction. The crystal belongs to the triclinic system, space group Pi with a=1.15362(1), b=1.3655(3), c=1.61451(1) nm, α=72.842(2), β=83.259(3), γ=72.083(2)°, V=2.3112(6) nm3, Z=2, μ(MoKα)=11.71 cm~(-1), F(000)=1120, R=0.0552 and wR=0.1157 (I > 2σ(I)). The two centric zinc(Ⅱ) ions in the complex locate in a distorted octahedral coord...