Atomic-Level Characterization of Dynamics of a 3D Covalent Organic Framework by Cryo-Electron Diffraction Tomography
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https://figshare.com/articles/dataset/Atomic-Level_Characterization_of_Dynamics_of_a_3D_Covalent_Organic_Framework_by_Cryo-Electron_Diffraction_Tomography/8340554
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资源简介：
Understanding
the dynamics of covalent organic frameworks (COFs)
is desirable for developing smart materials with coherent responses
to external stimulus. Here we illustrate the structural determination
of dynamics at atomic level by cryo-electron diffraction tomography
(EDT) with single crystals of COF-300 having only submicrometer sizes.
We observe and elucidate the crystal contraction upon H2O adsorption by ab initio structural solution of
all non-hydrogen atoms of framework and unambiguous location of guest
molecules in the pores. We also observe the crystal expansion of COF-300
upon inclusion of ionic liquid or polymer synthesized in the channels,
whose conformational aspects of frameworks can be confirmed.
创建时间：
2019-06-26
