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Lennard‐Jones parameters for small diameter carbon nanotubes and water for molecular mechanics simulations from van der Waals density functional calculations
Author(s) -
Kaukonen M.,
Gulans A.,
Havu P.,
Kauppinen E.
Publication year - 2012
Publication title -
journal of computational chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.907
H-Index - 188
eISSN - 1096-987X
pISSN - 0192-8651
DOI - 10.1002/jcc.22884
Subject(s) - van der waals force , carbon nanotube , molecular dynamics , density functional theory , lennard jones potential , chemistry , chemical physics , thermodynamics , computational chemistry , nanotechnology , materials science , physics , molecule , organic chemistry
Lennard‐Jones (LJ) parameters are derived for classical nonpolarizable force fields for carbon nanotubes (CNTs) and for CNT–water interaction from van der Waals (vdW) enhanced density functional calculations. The new LJ parameters for carbon–carbon interactions are of the same order as those previously used in the literature but differ significantly for CNT–water interactions. This may partially originate from the fact that in addition to pure vdW interactions the polarization and other quantum mechanics effects are embedded into the LJ‐potential. © 2012 Wiley Periodicals, Inc. J Comput Chem, 2012