A new cadmium（II） polymer based on imidazole derivative, formulated as [Cd（Hiba）2]n 1, H2iba = 4-（1-H-imidazol-2-yl） benzoic acid）, has been synthesized under hydro- thermal conditions. The compound crystallizes in triclinic system, space group P1 with a = 7.062（4）, b = 10.840（7）, c = 13.099（8） A, a = 98.102（7）, fl = 101.524（7）, y = I07.961（7）°, V= 912.3（10） A3, Z = 2, Mr = 486.75, Dc = 1.772 Mg/m3,/t = 1.234 mm-1, F（000） = 484, the final R = 0.0735 and wR = 0.1739 for 2154 observed reflections with 1 〉 20（I）. Polymer 1 consists of （Cd-Hiba）2 zigzag chains, which are further linked by hydrogen bonding to extend into a two-dimensional （2D） corrugated-shape sheet structure. The 2D structures are further connected into a 3D supramolecular edifice through hydrogen bonding. The polymer exhibits exceptional high thermal stability. The bulk purity of the materials of 1 was confirmed through the powder X-ray diffraction （PXRD） patterns. The luminescent property of polymer I has also been investigated.
