2016. 57, 6 – UDC 548.73:547.13:546.562 CRYSTAL STRUCTURE AND CATALYTIC PROPERTIES OF A TWO-DIMENSIONAL COPPER(II) COORDINATION POLYMER DERIVED FROM RIGID BIS(TRIAZOLE) W.-L. Hou1, G.-Y. Dong2, X. Zhang2 2College of Chemical Engineering, North China University of Science and Technology, Tangshan, Hebei, P. R. China 1Analysis and Test Center, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei, P. R. China E-mail: tscghua@126.com Received April 14, 2015 A new Cu(II) coordination polymer, namely {[Cu2(btb)2(sip)(OH)](H2O)0.25}n (btb = 4,4bis(1,2,4-triazolyl-1-yl)-biphenyl, H3sip = 5-sulfoisophthalic acid), is hydrothermally synthesized and characterized by elemental analyses, infrared (IR) spectroscopy, and single crystal X-ray diffraction. <...> Moreover, the thermal and catalytic properties of the complex for the degradation of the congo red azo dye in a Fenton-like process are investigated. <...> The design and synthesis of metal-organic coordination polymers (MOCPs) have been a subject of high attention for their potential applications in fields such as gas storage, chemical separation, catalysis, luminescence and their intriguing variety of topologies [ 1—3]. <...> A variety of metal-organic architectures with diversified structures and interesting properties have been assembled through the judicious choice of organic ligands and metal ions. <...> Isophthalic acid and its derivatives are one of the most successful multifunctional ligands because of their structural rigidity, chemical stability, and appropriate connectivity [ 4 ]. <...> In particular, the 5-sulfoisophthalic acid(H3sip) ligand has attracted intensive research attention [ 5, 6 ]. <...> In contrast to the carboxylate group, the weak coordination nature of SO 3 makes its coordination mode very flexible and sensitive to the chemical environment; besides, the sulfonate group has one more potentially coordinating oxygen atom. <...> Among various N-containing ligands, such as imidazole, pyridine, triazole and tetrazole, are frequently used to construct desirable MOCPs [ 7—9]. <...> Bis(1,2,4-triazole) and its derivatives are versatile multidentate ligands which can provide abundant coordination modes and generate variable interesting structures and functional properties [ 10, 11 ]. <...> However, when searching the Cambridge Structural <...>