Design And Synthesis Of Organic Conjugated Functional Molecular Systems

In recent years, organicÏ€-conjugated materials have drawn considerable attention, because of their unique optical properties and applications in a number of areas. The present paper focus on the construction of functional organicÏ€-conjugated molecules. Based on that, the chemical sensors and molecular self-assembly were researched by controlling the energy and charge transfer intramolecule.In Chapter 1, the research and applications of fluorescent probe based on organic molecules and supramolecular self-assembly have been reviewed.In Chapter 2, two daul-modal probes had been designed and synthesized for copper ion detection with high selectivity and sensitivity. In presence of Cu²⁺, The probes exhibit broad absorption peaks between 450 - 700 nm. The color of the solutions and films from colorless to bluish violet which was clearly visible to the naked eye.In Chapter 3, a series of new diacetylene derivatives have been synthesized. And the self-assembly condition of each derivative had been explored. Those results help to design new self-assembly blocks and to improve the performance of the probe. In Chapter 4, a simple acid-base driving molecule shuttle has been synthesized.The molecular axis can be bonded to gold nanoparticles. The macrocycle will be set on the axis and is modified by pyrene, which can be adsorbed on the surface of carbon nano-tube byÏ€-Ï€stacking.