Synthesis And Structural Chemistry Of Coordination Polymers Constructed By Flexible Phenylenedioxydiacetic Acids

Recently, the design and construction of the carboxylate coordination polymers have become one of the particularly important and topical subjects in the fields of coordination chemistry, supramolecular chemistry, material and biological science et al. The current topical areas focus on the rigid aromatic multicarboxylate ligands, such as benzene dicarboxylic acid and benzene tricarboxylic acid. In this thesis, thirty-nine novel metal-carboxylate complexes incorporating p- or m-BDOAH₂ ligands have been synthesized by means of self-assembly or hydrothermal methods. The crystal structures and properties of these complexes have been characterized by elemental analysis, 1R, TG-DTA, PL and X-ray single crystal diffraction. In eleven zero-dimensional, seventeen one-dimensional, seven two-dimensional as well as four three-dimensional supramolecular polymers, the p- or m-BDOAH₂ ligands exhibit as a counter-ion, monodentate, bidentate, tridentate, tetradentate, pentadentate, hexadentate, heptadentate and octadentate coordination modes. Therefore, the p- or m-BDOAH₂ ligands are excellent molecular building blocks for the construction of the coordination polymers with intriguing structural features and special properties, owing to their versatile binding fashions and remarkable conformational flexibilities.