Unexpected formation of a Sc3C2@C80 bisfulleroid derivative |
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Authors: | Kurihara Hiroki Iiduka Yuto Rubin Yves Waelchli Markus Mizorogi Naomi Slanina Zdenek Tsuchiya Takahiro Nagase Shigeru Akasaka Takeshi |
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Affiliation: | Life Science Center of Tsukuba Advanced Research Alliance, University of Tsukuba , Tsukuba, Ibaraki 305-8577, Japan. |
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Abstract: | The reaction of tetrazine 1 with Sc(3)C(2)@C(80) exclusively affords the open-cage derivative 2 instead of the expected C(2)-inserted derivative 3 bearing a four-membered ring, as previously obtained for C(60). The structure of 2 has been firmly established by NMR spectroscopy and theoretical calculations. EPR spectroscopy shows that a single Sc atom of the Sc(3)C(2) cluster gets located within the bulge created by the bridging addend, which is a first step toward release of the internal metal atoms. |
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