Synthesis and Transformation of Linear Adamantane Assemblies inside Carbon Nanotubes
Jinying ZhangDepartment of Chemistry and Institute for Advanced Research, Nagoya University, Nagoya, 464-8602, JapanYanquan FengDepartment of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824-2320, United StatesHitoshi IshiwataStanford Institute for Materials and Energy Science, Stanford University, Stanford, California 94305, United StatesYasumitsu MiyataDepartment of Chemistry and Institute for Advanced Research, Nagoya University, Nagoya, 464-8602, JapanRyo KitauraDepartment of Chemistry and Institute for Advanced Research, Nagoya University, Nagoya, 464-8602, JapanJeremy DahlStanford Institute for Materials and Energy Science, Stanford University, Stanford, California 94305, United StatesRobert M. K. CarlsonStanford Institute for Materials and Energy Science, Stanford University, Stanford, California 94305, United StatesHisanori ShinoharaDepartment of Chemistry and Institute for Advanced Research, Nagoya University, Nagoya, 464-8602, JapanDavid TománekDepartment of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824-2320, United States
2012en
ABI
Аннотация
We report the assembly and thermal transformation of linear diamondoid assemblies inside carbon nanotubes. Our calculations and observations indicate that these molecules undergo selective reactions within the narrow confining space of a carbon nanotube. Upon vacuum annealing of adamantane molecules encapsulated in a carbon nanotube, we observe a sharp Raman feature at 1857 cm(-1), which we interpret as a stretching mode of carbon chains formed by thermal conversion of adamantane inside a carbon nanotube. Introduction of pure hydrogen during thermal annealing, however, suppresses the formation of carbon chains and seems to keep adamantane intact.
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