Cyclacene tubes having silaannulenic peripheries - AM1 treatment

Date

2000-07-01

Author

Türker, Burhan Lemi
Bayer, I

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The cyclacene tubes T(R, r) consisting of the Huckel type intermolecularly unioned (r = 6) cyclacenes having R arenoid rings (R = 3 - 6) and a single silaannulenic periphery are considered for AM1 type semiempirical molecular orbital calculations. The cases in which the silaannulenic periphery occupies different locations (layers A-D from top to middle) along the tube axis are investigated. It has been found that doping of silicon atoms in the top (or bottom) periphery of the cyclacene tubes has a stabilizing effect irrespective of 4m or 4m + 2 type character and thus no cryptoannulenic effect is exhibited. The silicon doping in every case is characterized with endothermic heats of formation with local minima for tubes with R = 4.

Subject Keywords

Nanotubes, Cyclacenes, Silacyclacenes, Cyclacene tubes, Cryptoannulenic effect

URI

https://hdl.handle.net/11511/62573

Journal

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS

DOI

https://doi.org/10.1016/s0022-3697(99)00360-1

Collections

Department of Chemistry, Article

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Citation Formats

B. L. Türker and I. Bayer, “Cyclacene tubes having silaannulenic peripheries - AM1 treatment,” JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, pp. 1041–1045, 2000, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/62573.