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Updated: May 6, 2026
Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures
Published on: July 2, 2012
Synthesis of a carbon nanobelt
Guillaume Povie1,2,3, Yasutomo Segawa4,2, Taishi Nishihara1,2
1JST-ERATO (Japan Science and Technology Agency, Exploratory Research for Advanced Technology) Itami Molecular Nanocarbon Project, Chikusa, Nagoya 464-8602, Japan.
Abstract:
The synthesis of a carbon nanobelt, comprising a closed loop of fully fused edge-sharing benzene rings, has been an elusive goal in organic chemistry for more than 60 years. Here we report the synthesis of one such compound through iterative Wittig reactions followed by a nickel-mediated aryl-aryl coupling reaction. The cylindrical shape of its belt structure was confirmed by x-ray crystallography, and its fundamental optoelectronic properties were elucidated by ultraviolet-visible absorption, fluorescence, and Raman spectroscopic studies, as well as theoretical calculations. This molecule could potentially serve as a seed for the preparation of structurally well-defined carbon nanotubes.
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