Synthesis of a Cobalt Coordination Polymer Based on 4-(1H-Imidazol-1-yl)phenyl)methanone and Fumaric Acid

A cobalt coordination polymer with V-shaped ligands, {[Co0.5(L1) ⋅ (C4H2O4)0.5] ⋅ 0.25H2O}n, (L1 = 4-(1H-imidazol-1-yl)phenyl)methanone, C4H2O4 = fumarate) has been synthesized under the solvothermal conditions. It has been characterized by elemental analysis, FT-IR spectroscopy, and single-crystal X-ray diffraction analysis. The crystal is crystallized in the monoclinic space group C2/m with the unit cell parameters a = 10.6921(6) A, b = 20.7735(10) A, c = 8.8688(5) A, and β = 107.615(6)°, Z = 4. X-ray crystal analysis reveals that the 1D [Co(L1)4] chains are linked by two adjacent fumarate ligands to form a 2D framework.