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Reactivity of the Convex and Concave Surfaces of Single‐Walled Carbon Nanotubes (SWCNTs) towards Addition Reactions: Dependence on the Carbon‐Atom Pyramidalization
Author(s) -
Chen Zhongfang,
Thiel Walter,
Hirsch Andreas
Publication year - 2003
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200390015
Subject(s) - reactivity (psychology) , carbon nanotube , fullerene , atom (system on chip) , carbon fibers , carbon atom , materials science , bending , nanotechnology , adduct , chemistry , computational chemistry , chemical physics , organic chemistry , composite material , ring (chemistry) , medicine , alternative medicine , pathology , composite number , computer science , embedded system
Angle is more important than diameter : ( n , n ) Single‐walled carbon nanotubes (SWCNTs; see picture) are less reactive than fullerene towards exohedral addition reactions. The reactivity of ( n , n ) SWCNTs towards sidewall addition reactions depends on the pyramidalization angles of the tube C atoms. Even with the same diameter, SWCNT has a much smaller pyramidalization angle because of the cyclic bending (instead of spherical as in fullerene). The difference between inside and outside reactivity of SWCNTs is only moderate for typical examples such as (10,10) SWCNTs, and the accompanying endohedral adduct formation seems possible.