Selectivity of single-molecule dynamics in 2D molecular sieves

Guillaume Schull, Ludovic Douillard, Céline Fiorini-Debuisschert, Fabrice Charra, Fabrice Mathevet, David Kreher, André Jean Attias

研究成果: ジャーナルへの寄稿学術誌査読

70 被引用数 (Scopus)

抄録

The size and shape selectivity of a two dimensional (2D) molecular sieve, consisting of a molecularly engineered host matrix that is self assembled at the liquid solid interface is described. The size and shape dependant dynamics of various guest molecules was analyzed in situ and in real time. The temperature dependence of the diffusion dynamics of the different guests was compared, which permits molecular engineering rules for turning the selectivity of the cavities and channels to be derived. Typical room temperature scanning tunneling microscopy (STM) image was obtained from self-assembled aromatic compound on highly oriented pyrolytic graphite (HOPG) before the addition of guest molecules. The experimental data obeys an Arrhenius dependence for each of the guest molecules, with a pre-exponential factor of the order of 5×10×14 Hz that could be considered as an intrinsic parameter directly related to the diffusion process in a 2D matrix.

本文言語英語
ページ(範囲)2954-2957
ページ数4
ジャーナルAdvanced Materials
18
22
DOI
出版ステータス出版済み - 11月 17 2006
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 材料科学一般
  • 材料力学
  • 機械工学

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