Synthesis and spectroscopy of fullerenes and the discovery of Roto-Bucky

[摘要] Macroscopic synthetic techniques for producing fullerene molecules have been developed which include the carbon arc and laser vaporization approaches. The ;;pentagon rule;; kinetic growth mechanism for the fullerenes is proposed to explain this facile process. The reactor technology for generating fullerene molecules is generalized. Resonant two-photon ionization measurements have yielded the triplet state lifetimes and electronic spectroscopy of C$sb{60}$ and C$sb{70}$ in a supersonic molecular beam. The technique and results are described in detail. An unusual type of C$sb{60}$ $cdot$ Ar$sp{+}$ complex has been detected through fragmentation studies in a tandem time-of-flight mass spectrometer. Rotational stabilization is proposed as the mechanism leading to the long lifetime of this and similar species.

[发布机构] Rice University

[效力级别] chemistry