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富勒烯制备全氟烷基纳米球。

Production of perfluoroalkylated nanospheres from buckminsterfullerene.

出版信息

Science. 1993 Oct 15;262(5132):404-7. doi: 10.1126/science.262.5132.404.

Abstract

Perfluoroalkylated nanospheres have been prepared by reaction of fullerenes with a variety of fluoroalkyl radicals. The latter are generated by thermal or photochemical decomposition of fluoroalkyl iodides or fluorodiacyl peroxides. Up to 16 radicals add to C(60) to afford easily isolable fluoroalkylated derivatives. The monosubstituted radical adducts were detected by electron spin resonance in the early stages of the fluoroalkylation reactions. These spheroidal molecules are thermally quite stable, soluble in fluoroorganic solvents, chemically resistant to corrosive aqueous solutions, and more volatile than the parent fullerenes. Films of the sublimed material display properties typical for a perfluoroalkylated material.

摘要

全氟烷基纳米球通过富勒烯与各种全氟烷基自由基的反应制备。后者通过全氟碘代烷或氟代二酰基过氧化物的热解或光解产生。多达 16 个自由基可与 C(60)加成,得到易于分离的全氟烷基化衍生物。单取代自由基加合物在全氟烷基化反应的早期阶段通过电子自旋共振检测到。这些球形分子的热稳定性相当高,可溶于全氟有机溶剂,耐腐蚀性水溶液的化学腐蚀性,且比母体富勒烯挥发性更高。升华材料的薄膜表现出典型的全氟烷基化材料的性质。

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