Geometrical Structure of Carbon Nanotubes with Alternation Pattern

Abstract

In this paper we consider the geometrical structure of carbon nanotubes with artificially inplanebond alternation. The quinoid and the Kekule structures of carbon nanotubes with two differentbond lengths are fully described for various symmetries, including chiral and achiral carbon nanotubes.Consideration of the geometrical structure or the atomic structure is the first step for studies of carbonnanotubes with dimerization structures.