Carbon monoxide inside an open-cage fullerene.
Carbon monoxide inside an open-cage fullerene.
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DOI：
10.1002/anie.200601241
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发表时间：
2006-08
影响因子：
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通讯作者：
S. Iwamatsu;Christopher M. Stanisky;R. Cross;M. Saunders;N. Mizorogi;S. Nagase;S. Murata
中科院分区：
文献类型：
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作者：
S. Iwamatsu;Christopher M. Stanisky;R. Cross;M. Saunders;N. Mizorogi;S. Nagase;S. Murata
包封分子或原子的富勒烯（内嵌富勒烯）的化学在过去十年中得到了广泛的发展。一种高压、高温的方法使得将原子和一些小分子插入富勒烯笼中成为可能。[1]然而，通过该方法获得的掺入产物的产率非常低。在试图制备更高数量的内嵌富勒烯时，富勒烯笼的碳-碳键已通过有机反应裂解。[2-4]由此产生的产物，即所谓的开笼富勒烯，具有足够大的开口，可以将原子或分子插入富勒烯的空腔中。[5-9]与完整的内嵌富勒烯不同，这些衍生物可以以可逆的方式保持和释放底物。这一性质为传感和存储材料提供了潜在的应用。[10]此外，开放的部分可以恢复到一个完整的笼内插入的化学物种。事实上，最近通过使用这种策略从C60合成了纯的内配体H2@C60。[6 b]先前获得的开笼衍生物的狭窄孔限制了可以插入氦和氢的分子。[5-8]最近，我们在C60上通过连续的笼式切割构建了一个宽开口。[9]1的孔（方案1）是迄今为止已知的富勒烯中最大的孔，并且1自发地包封一个水分子以形成H2O@1。[9a]这一结果表明，原子或
The chemistry of fullerenes that encapsulate molecules or atoms (endohedral fullerenes) has developed extensively in the last decade. A high-pressure, high-temperature method has made it feasible to insert atoms and some small molecules into fullerene cages.[1] However, the yield of the incorporated product obtained by this method is very low. In an attempt to prepare endohedral fullerenes in higher quantities, carbon–carbon bonds of fullerene cages have been cleaved by organic reactions.[2–4] The resulting product, a so-called open-cage fullerene, has an opening that is large enough to insert an atom or a molecule into the cavity of the fullerene.[5–9] Unlike complete endohedral fullerenes, these derivatives can hold and release substrates in a reversible manner. This property offers sensing and storage materials as potential applications.[10] Furthermore, an open moiety can be restored to an intact cage with the inserted chemical species inside. Indeed, pure endohedral H2@ C60 was recently synthesized from C60 by using this strategy.[6b]The narrow orifices of previously obtained open-cage derivatives restricted the molecules that could be inserted to helium and hydrogen.[5–8] Recently, we constructed a wide opening on C60 by successive cage scissions.[9] The orifice of 1 (Scheme 1) is the largest known to date for a fullerene, and 1 spontaneously encapsulates one water molecule to form H2O@ 1.[9a] This result shows that it is possible for atoms or