3 years ago

Fullerene C70 as a Nanoflask that Reveals the Chemical Reactivity of Atomic Nitrogen

Fullerene C70 as a Nanoflask that Reveals the Chemical Reactivity of Atomic Nitrogen
Shigeru Nagase, Hidefumi Nikawa, Tatsuhisa Kato, Atsushi Wakamiya, Satoru Sato, Ko Furukawa, Yutaka Maeda, Michihisa Murata, Takeshi Akasaka, Rui Zhang, Michio Yamada, Yasujiro Murata, Yuta Morinaka
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 C60 and C70 fullerenes. Among the studied endofullerenes, H2@C70 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 H2 molecule, thus demonstrating the utility of such fullerenes as “nanoflasks”. A weak interaction: Atomic nitrogen was encapsulated in a series of molecule-encapsulating endohedral C60 and C70 fullerenes in order to investigate the intrinsic reactivity of the N atom. Among the studied endofullerenes, H2@C70 accommodated an additional N atom within its fullerene cage under radiofrequency plasma conditions. The obtained product was analyzed by ESR spectroscopy and mass spectrometry in solution.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/anie.201701158

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