1. Stable single helical C- and I-chains inside single-walled carbon nanotubes
- Author
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J H Li, W X Wang, Chun-Jian Liu, Bingbing Liu, S P Zheng, Y P Zhang, Q Yuan, Xiao-Dan Jing, Yongming Li, L Bi, Xing Zhao, F S Meng, H Liu, Z Yao, and Z Y Qiu
- Subjects
Carbon chain ,Quantitative Biology::Biomolecules ,Materials science ,General Physics and Astronomy ,Nanotechnology ,02 engineering and technology ,Radius ,Carbon nanotube ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Molecular physics ,Helicity ,0104 chemical sciences ,law.invention ,symbols.namesake ,Chain structure ,law ,symbols ,Tube (fluid conveyance) ,van der Waals force ,0210 nano-technology - Abstract
The helicity of stable single helical carbon chains and iodine chains inside single-walled carbon nanotubes (SWCNTs) is studied by calculating the systematic van der Waals interaction energy. The results show that the optimal helical radius increases linearly with increasing tube radius, which produces a constant separation between the chain structure and the tube wall. The helical angle exhibits a ladder-like decrease with increasing tube radius, indicating that a large tube can produce a small helicity in the helical structures.
- Published
- 2016
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