Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan.
Life Science Center of Tsukuba Advanced Research Alliance, University of Tsukuba, Ibaraki, 305-8577, Japan.
Angew Chem Int Ed Engl. 2017 Jun 1;56(23):6488-6491. doi: 10.1002/anie.201701158. Epub 2017 May 2.
To investigate the intrinsic reactivity of atomic nitrogen, which had previously been accomplished only by examining its decay in the gas phase using special equipment, a nitrogen atom was inserted into a series of molecule-encapsulating C and C fullerenes. Among the studied endofullerenes, H @C was able to encapsulate an additional nitrogen atom within the fullerene cage under radiofrequency plasma conditions. The product was analyzed by ESR spectroscopy and mass spectrometry in solution, which revealed that the nitrogen atom with a quartet ground state does not react but weakly interact with the H molecule, thus demonstrating the utility of such fullerenes as "nanoflasks".
为了研究原子氮的固有反应性，以前只能使用特殊设备在气相中检测其衰减来完成这一任务，因此我们将一个氮原子插入了一系列分子包封的 C 和 C 富勒烯中。在所研究的富勒烯中，在射频等离子体条件下，H@C 能够在富勒烯笼内额外封装一个氮原子。通过溶液中的 ESR 光谱和质谱分析对产物进行了分析，结果表明，具有四重态基态的氮原子不会发生反应，而是与 H 分子发生弱相互作用，从而证明了这种富勒烯作为“纳米瓶”的实用性。
