КООРДИНАЦИОННАЯ ХИМИЯ, 2017, том 43, № 3, с. 171–177 УДК 541.49 SYNTHESIS, CRYSTAL STRUCTURE, AND LUMINESCENCE OF DOUBLE CHAIN COMPLEXES BASED ON 4-METHOXY-3,5-DI(PYRIDIN-4-YL)BENZAMIDE WITH METALS © 2017 Y. Hou, N. Li, and G. G. Hou* The Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Yantai, 264003 P.R. China *e-mail: guigehou@163.com Received April 22, 2016 Two novel double chain complexes [Cd(L)2I2] (I) and [Cu(L)2Cl2] (II) were generated based on angular ligand 4-methoxy-3,5-di(pyridin-4-yl)benzamide (L) with CdI2 and CuCl2. <...> They were fully characterized by IR, elemental analysis, and single-crystal X-ray diffraction (CIF files CCDC nos. 1474500 (I) and 1474501 (II)). <...> The single-crystal structure reveals that L acts as a bridging bidentate ligand to link metal centres to generate a double chains, further linked by hydrogen bond resulting in a 3D network. <...> In addition, the luminescent properties of L and I, II were investigated primarily in the solid state. <...> Keywords: crystal structure, complexes, angular ligand, luminescence DOI: 10.7868/S0132344X17030021 INTRODUCTION Double-armed organic ligands, including rigid linear, angular, semirigid and flexible organic spacers with various topologies and coordination natures, are widely used in the construction of coordination polymers and supramolecular complexes by chemists. <...> Thereinto, rigid and angular organic ligands provide a bigger number of complexes thanks to their certain angular and restricted conformation that allow for regular coordination frameworks [15]. <...> Angular organic ligands with 60°, 90°, 120° and 180° angles should construct different topological complexes [16–19]. <...> Recently, our research group has provided a series of double-armed rigid organic ligands for assembly of co-crystals and coordination complexes [20–25]. <...> Herein, an angular ligand 4-methoxy-3,5-di(pyridin-4-yl)benzamide (L) with 120° angle was synthesized. <...> As an in-depth analysis and part of our investigation of self-assembly based on the angular ligand L, we herein present two novel complexes [Cd(L)2I2] (I) and [Cu(L)2Cl2] (II <...>