Study On Synthesis Of Functionalized Tetramethoxy Resorcinarene And Applications In Materials And Catalysis

As a third generation of supramolecular host compounds, the easily chemically modified resorcinarenes have been widely used in materials, molecular sensors and other fields. Now, supramolecular self-assembly and nano-materials is a hot area of research, research in this area have achieved a lot of significant results, got a wide variety of novel metal nanoparticles and self-assembled nanostructures. Tetramethoxy calixarene is a new munber of calixarene family, it aslo represent as an important platform for host-guest chemistry. In this work, we investigated a new method to synthesize and funcational modify tetramethoxy calixarene. Then characterize the physical and chemical properties of functional derivatives and their applications in materials and catalysis area, made some interesting results:1:With tetramethoxy resorcinarenes as starting materials and from esterification, hydrazinolysis, aminolysis and hydrolysis of phenolic hydroxyl groups of tetramethoxy resorcinarenes, series functional groups such as etheresters, acyl hydrazine, amide, acyl hydrazone, carboxylic acids and pyridine amide have been synthesized. By IR, NMR, XRD we characterized their structures.2:In the conditions of tetramethoxy calixarene amide derivatives as protective agents, stabled Au nanoparticles were prepared by sodium borohydride reduction of gold chloride acid. The obtained nanoparticles were characterized by TEM, SEM, XRD, and EDS. The obtained nanoparticles also used in catalytic reduction of amino phenols in aqueous phase, found that the catalytic affect of nanoparticles smaller the better, and when using same nanoparticles, the catalytic efficiency of different aminophenol are not the same:4-nitrophenol>3-nitrophenol>2-nitrophenol.3:Tetramethoxy calixarene amides derivatives-based multiwalled microtubes, which diameter in nanometers and length in micrometers were obtained in water. The microtubes were studied using TEM, SEM, XRD, UV-vis and IR techniques. When we change the amphiphilic groups into hydrazine groups can only form sheet structure. In addition, througth studing loaded nanoparticles on the microtubes found that the loaded nanoparticles have a better uniformity than the nanoparticles residue in solution.