石墨电弧中C5环的原位捕获与形成

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五元环是富勒烯的重要构筑基元,是形成凸多面体碳笼的关键因素,研究C5环的形成对理解富勒烯自下而上的生长机理有着重要的意义.该文通过在石墨电弧放电体系中引入氯源,原位捕获到了C5与C60的[4+2]环加成衍生物C60(C5 Cl6).对该分子进行质谱和紫外-可见吸收光谱的表征,并利用X-射线单晶衍射明确了C60(C5 Cl6)的分子结构.此外,还通过一系列C60衍生物的质谱表征,对C5环和C60(C5 Cl6)结构的演进路线进行了分析.
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