| Budget Amount *help |
¥48,880,000 (Direct Cost: ¥37,600,000、Indirect Cost: ¥11,280,000)
Fiscal Year 2015: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Fiscal Year 2014: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Fiscal Year 2013: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Fiscal Year 2012: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Fiscal Year 2011: ¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
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| Outline of Final Research Achievements |
The synthetic methods to create a large opening on fullerenes have been developped. A water molecule was encapsulated into the open-cage C60 derivative, and the opening was completely restored to afford H2O@C60 in a macro-scopic scale under the mild reaction conditions. To reallize an encapsulation of a large molecule, efficient way to create a larger opening was found by the reaction with nucleophilic oxidants, which was also applied to a precursor of azafullerenes, in which one of the carbon atoms in fullerene cages is replaced with a nitrogen atom. As another method to enlarge the opening, a sulfur atom was introduced on the rim of the openings. When this reaction was applied to an open-cage C60 derivative, a new open-cage C59S derivative was obtained in addition to the expected compound having a larger opening. Furthermore, when this reaction was applied to an open-cage C70 derivative, another new reaction was found to afford an open-cage C69S derivative.
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