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Title: DFT studies of COOH tip-functionalized zigzag and armchair single wall carbon nanotubes
Authors: Chełmecka, E.
Pasterny, Karol
Kupka, T.
Stobiński, L.
Keywords: Carboxylation energy; COOH functionalization; DFT; End-substitution; Zigzag and armchair SWCNT
Issue Date: 2012
Citation: Journal of Molecular Modeling, No. 5 (2012), s. 2241-2246
Abstract: Structure and energy calculations of pristine and COOH-modified model single wall carbon nanotubes (SWCNTs) of different length were performed at B3LYP/ 6-31G* level of theory. From 1 to 9 COOH groups were added at the end of the nanotube. The differences in structure and energetics of partially and fully functionalized SWCNTs at one end of the nanotube are observed. Up to nine COOH groups could be added at one end of (9,0) zigzag SWCNT in case of full functionalization. However, for (5,5) armchair SWCNT, the full functionalization was impossible due to steric crowding and rim deformation. The dependence of substituent attachment energy on the number of substituents at the carbon nanotube rim was observed.
DOI: 10.1007/s00894-011-1242-x
ISSN: 1610-2940
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