Synthesis And Characterization Of Rod-coil Derivatives Binding A Novel N^C^N Tridentate Ligand

Rod-coil molecules could assemble to form highly ordered supramolecular objects promoted by the π-π interactions of the rigid parts as well as the phase separation from one another at a molecular level between the flexible chain segment and the rigid core. When the terpyridine-type tridentate ligand structure was introduced into the rod-coil molecules, it could be applied as ligands coordinating with metal, such as platinum ion, to self-assemble into the organometallic supramolecular nanomaterials by the interaction of metal-metal ions or ligand-ligand. Tridentate ligands could coordinate with many transition metals to give high stable complexes, which have been widely used in the fields of coordination chemistry, organic synthesis, homogeneous catalysis and luminescent materials and has lately attracted considerable attention.From these points of view, the novel N^C^N tridentate ligand with the coordination ability was designed by introducing pyrimidyl group on the rigid parts of the rod-coil molecules. The thesis is divided into two parts:Part I:Synthesis of rod-coil derivatives binding N^C^N tridentate ligand, and discussion of synthetic routes. Three kinds of N^C^N tridentate ligand were designed, which include methoxy substitutive ligand, hydrophilic rod-coil type ligand and hydrophobic one. With methoxy substitutive molecule as a typical ligand structure, methoxy substitutive ligand was successfully synthesized, varieties of synthetic route were discussed, and the optimum synthetic method was established. The structure of the ligand was successfully analyzed by the X-ray single crystal diffraction. And on that basis, the further synthetic routes of both the hydrophilic rod-coil type ligand and hydrophobic one were designed.Part II:Synthesis and characterization of N^C^N tridentate platinum(II) complexes. The structures and the physicochemical properties of the synthesized complex were characterized by1H NMR, MALDI-TOF-MS, UV-vis and fluorescence spectrometry. And the possible application was evaluated.