The Synthesis And Research Of Nonlinear Optical Materials Fulleroids

Fullerene chemistry is a newly developed foredisciplinary and is one of the 100 science problem in 21st century. Regionselectivity, nonlinear optical effect and chemical incorporation of fullerene and its derivations are the forefornt of fullerene chemistry and have become the hotspots of the science research.In this desertation, the physical properties,chemical properties, spectrum property, NLO effect and the potential uses of fullerene and its derivatives were summarized detaily. In order to research the regionchemisty of fullerene and look for the ideal materials for the protection to laser, we sucessfully designed and synthesed a series of bisazabridged[60]fulleroids and triazabridged[60]fulleroids for the first time, and characterized them with FTIR,MALDI TOF MS,UV-vis,1HNMR,13CNMR spectrums. The AM1 semi-experiential program had been used to calculate the energy and the dipole moment of the products, which gave evidence for the stable structure and the relative yield of the products. According to the literatures and our experiments, appropriate conditions for the reaction of C60 with alkyl azide and the separation of adducts were obtained. The relationship between the structure and the chromatographic polarity of the products was also summarized. 1)Chlorobenzene as the solvent, there will be less byreactions under 85℃ for several hours then refluxing than refluxing directly;2)All the major products for these reactions, of which the structure have also been characterized clearly, are [5,6]-opened structure;3)Common column chromatography is the simple but effective method for separation of fullerene derivatives, and toluene is the necessary ingredient of the eluent;4)The multiadduct products are more polar than monoadducts when the side chains are the same, the derivatives with -NO2 group is more polar than that with–CH2CH3 group; the isomer of [5,6] structure is more polar than that of [6,6] structure, and the yield of the former is larger than that of the the later.By multyfuctionalization on the same ring of the fullerene surface to enlarge the cage volume, it is possible for some small particles to embed into the fulleroids, which will result to some good photoelectrical materials. This maybe a useful method for the application of fullerene.