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    題名: Synthesis of Octadecahydroxylated C70
    作者: Chen, B. H.;Huang, J. P.;Wang, L. Y.;Shiea, Jentaie;陳敦禮;Chen, Tun-li;Chiang, L. Y.
    貢獻者: 淡江大學化學學系
    日期: 1998-10
    上傳時間: 2009-12-01
    出版者: Marcel Dekker
    摘要: Synthesis of novel hydrophilic [70]fullerenols was described. The reaction involved an oleum-induced oxidative sulfation of the C70 molecules with a product yield of 86%. The rate of fullerene sulfation was accelerated either moderately or greatly by the addition of P2O5 or SeO2, respectively. Hydrolysis of the resulting polycyclosulfated C70 in H2O at 80°C afforded [70]fullerenols in a yield of more than 72%. The negative ion MALDI-TOF mass spectrum of [70]fullerenols showed a well-defined pattern of ion fragmentations with a nearly constant, consecutive weight increase in 17 mass units from the mass of C70. Detection of a molecular ion at m/z 1146 was indicative for the composition of [70]fullerenols as octadecahydroxyfullerenes, containing 18 hydroxy addends per C70 cage. That correlates the structure of their polycyclosulfated precursors to nonacyclosulfated [70]fullerenes, C70(SO4)9.
    關聯: Synthetic Communications 28(19), pp.3515-3525
    DOI: 10.1080/00397919808004898
    顯示於類別:[化學學系暨研究所] 期刊論文

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