Spontaneous pattern of linear molecules in strongly confined spaces

文献情報

出版日 2011-06-09

DOI 10.1039/C0CP02949A

インパクトファクター 3.676

著者

Guangfeng Jiang

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要旨

In this work, we study the tight packing of short linear molecules in confined space by performing molecular dynamic simulations. The short chain-like molecules spontaneously arrange within single-walled carbon nanotubes (SWNTs) and exhibit a variety of chiral and achiral structures, depending on the pore size and molecule length. Simulation results show that the packing structures for these confined short linear molecules are controlled by the competition between positional order and orientational order. For linear molecules with short molecular length, such as the two-site Lennard–Jones molecules, the orientational order gradually decreases as temperature increases, and then the positional order begins to disappear. While for longer molecules, such as four-site Lennard–Jones molecules, the positional order decreases more rapidly than the orientational order as temperature increases. We also investigated the effect of molecular rigidity. For linear molecules with higher rigidity, part of packing structures may slowly rotate as a whole, and the rotation of packing arrangements is found to be induced by the preexisting defects.

掲載誌

Physical Chemistry Chemical Physics

CiteScore: 5.5

自己引用率: 10.3%

年間論文数: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Spontaneous pattern of linear molecules in strongly confined spaces

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Physical Chemistry Chemical Physics

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