Synthesis And Properties Of Ruthenium Complexes With Crown Ethers

The molecular-scale electronic devices are one of the most attractive areas in recent years. Molecular wires play a vital role in the development of the molecular electronic devices, so it has been valued more and more researchers’attention. Molecular wires is an important component of molecular devices and contact the outside of the bond. Organometallic molecular wires, exhibiting unique structure and properties in electrical conductivity, chemical and electrical stability, have been developed very rapidly. A study on the synthesis and properties of ruthenium complexes with conjugated hydrocarbon chains was systematically carried out. The main results are as follows:1. Two kinds of ruthenium complexes were synthesized:crown ethers bridging mononuclear ruthenium complexes and binuclear ruthenium complexes. The structures of all these new compounds were fully characterized by 1H NMR,13C NMR,31P NMR and UV-vis.2. Spectral properties of all these new compounds in CH3CN have been investigated by UV-vis, as well as electrochemical properties in CH2Cl2 have been investigated by cyclic voltammetry and square wave voltammetry.3. The influence of Li+ on all these new compounds have been investigated by cyclic voltammetry and square wave voltammetry.4. May know through the UV-Vis spectrophotometer and the electrochemistry technology, in the list substitution crown ether bridging ruthenium complexes, the one including dipyridyl ligand is small transmission electron ability, but transmission electron abilityof the one contains the trimethyl phosphine ligand to be big. In the polysubstitution crown ether divides in the strand, after Li+ introducting the crown ether ring, strengthened its transmission electron ability.