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Science 2 October 1998:
Vol. 282. no. 5386, p. 9
DOI: 10.1126/science.282.5386.9g
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Carbon nanotube chemistry and spectroscopy have been limited by their lack of solubility in organic solvents. Chen et al. (p. 95) have derivatized the ends of purified and shortened single-walled carbon nanotubes (SWNTs, 100 to 300 nanometers in length) by heating them for 1 day with SOCl2 and in octadecylamine for 6 days. The resulting nanotubes are soluble in many common organic solvents, and spectroscopic studies allowed the band gaps of undoped and iodine- and bromine-doped SWNTs to be measured. The authors were also able to derivatize the walls of the SWNTs and found that saturation of just 2% of the wall carbon atoms could lead to large changes in the electronic band structure.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)