armchair nanotube

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armchair nanotube

[‚ärm‚chār ′nan·ō‚tüb]
(physical chemistry)
A carbon nanotube formed from a graphite sheet that is rolled up so that the edge is in the shape of armchairs.
References in periodicals archive ?
Among the topics are synthesizing bowl-shaped and basket-shaped fullerene fragments with benzannulated enyne-allenes, experimental and calculated properties of fullerene and nanotube fragments, hemispherical geodesic polyarenes as attractive templates for the chemical synthesis of uniform-diameter armchair nanotubes, conjugated molecular belts based on three-dimensional benzannulene systems, and toward fully unsaturated double-stranded cycles.
Thus the vectors (0,n) and (m,0) denote zig-zag nanotubes, the vectors (m,m) or (n,n) denote armchair nanotubes and all other vectors correspond to chiral nanotubes.
The angle [alpha] and [beta] of armchair nanotubes have been found from ab initio calculations [22] where [alpha] [approximately equal to] 2[pi]/3 and [beta] = [pi] - arc cos[0.
The armchair nanotubes possess higher tensile capability and failure strain than zigzag nanotubes with the same diameters.
For the armchair nanotube, the geometry relationships satisfy
T] acting on the armchair nanotube can be related to bond force f as [F.
9 HEMISPHERICAL GEODESIC POLYARENES: ATTRACTIVE TEMPLATES FOR THE CHEMICAL SYNTHESIS OF UNIFORM-DIAMETER ARMCHAIR NANOTUBES