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Carbon Nanobelt

Nanobelt synthesis through iterative Wittig reactions followed by a nickel-mediated aryl-aryl coupling reaction

Background

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.

Technology Overview

Nagoya University researchers have succeeded in the synthesis of one such compound through iterative Wittig reactions followed by a nickel-mediated aryl-aryl coupling reaction. The new nanobelt is 0.83 nanometer (nm) in diameter. 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.

Further Details

Science, Povie et al., 2017

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