Xu Department of Chemistry, Yancheng Teachers University, Yancheng, Jiangsu 224002, P. R. China E-mail: xxjyctu@gmail.com Received Februaru, 22, 2014 Revised — April, 07, 2014 A two-dimensional Ni(II) complex {[Ni(BTX)(SDBA)(H2O)]0.29H2O}n (1) (BTX = 1,4bis(1,2,4-triazol-1-ylmethyl)-benzene, H2SDBA = 4,4-sulfonyldibenzoic acid) is synthesized and characterized using single crystal X-ray diffraction, IR spectroscopy, and elemental analysis. <...> The single crystal X-ray diffraction analysis reveals that complex 1 is a two-dimensional polymer containing 28-membered rings based on the rhomboid subunit [Ni2(C14H8O6S)2] with a Ni—Ni separation of 12.923 Е. <...> The thermal stability and magnetic property of the title complex are briefly investigated. <...> Crystal engineering of metal—organic frameworks (MOFs) has been flourishing in recent years not only due to their intriguing structural diversity and new topologies but also owing to their potential applications in gas storage, chemical separations, microelectronics, nonlinear optics, heterogeneous catalysis, and so on [ 1—5]. <...> It is well-known that the construction of MOFs is usually influenced by several factors in the self-assembly process, such as organic ligands, solvents, metal atoms, and so on [ 6, 7 ]. <...> Among these factors, the organic ligands play a key role in directing the ultimate architectures of compounds. <...> The main stream method to construct coordination polymers is to utilize carboxylatecontaining and multidentate N-donor ligands. 4,4-Sulfonyldibenzoic acid (H2SDBA) as a semi-rigid V-shaped dicarboxylate ligand is a very versatile ligand for the construction of novel MOFs [ 8—13]. <...> Meanwhile, 1,4-bis(1,2,4-triazol-1ylmethyl)-benzene (BTX) as a flexible bis(triazole) ligand can adopt different conformations depending on the relative orientation of its CH2 groups [14—19 ]. <...> However, to the best of our knowledge, coordination polymers constructed from H2SDBA and BTX ligands have not been documented so far. <...> Here, we have selected H2SDBA and BTX as organic ligands, generating the title new Ni(II) coordination polymer {[Ni(C12N6H12)(C14H8O6S)(H2O)]0.29H2O}n (1), the crystal structure of which we now report. <...> The 1,4-bis <...>