Hydrothermal Synthesis, Crystal Structure and Photoluminescent Property of 2D Layer Coordination Polymer [Cd(mbix)(BIPA)]

A 2D coordination polymer of [Cd(mbix)(BIPA)] (1) (H(2)BIPA=5-bromoisophthalic acid and mbix=1,3-bis(imidazol-1-ylmethyl) benzene) has been hydrothermal prepared and characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction structure analysis. The crystal is of monoclinic, space group P2(1)/n with a=1.002 0(4) nm, b=1.754 4(7) nm, c=1.208 8(5) nm, beta=94.271(5), V=2.119 1(15) nm(3), D-c=1.861 g.cm(-3), Z=4, F(000)=1 168, Goof=1.085, R-1=0.045 0, wR(2)=0.093 1. The crystal structure shows that the Cd-2 units are formed by the two caroboxylate group adopting tridentate-chelating-bridging coordination mode, which are linked to form a 2D layer structure by the ligands, and further extended into a 3D supramolecular structure through C-H center dot center dot center dot O hydrogen bonding interactions and pi-pi weak interactions. In addition, complex 1 exhibits strong photoluminescent emission at room temperature. CCDC: 710801.