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Atomic-level structural responsiveness to environmental conditions from 3D electron diffraction
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DOI：10.1038/s41467-022-34237-1.png)
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摘要
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Electron microscopy has been widely used in the structural analysis of proteins, pharmaceutical products, and various functional materials in the past decades. However, one fact is often overlooked that the crystal structure might be sensitive to external environments and response manners, which will bring uncertainty to the structure determination and structure-property correlation. Here, we report the atomic-level ab initio structure determinations of microcrystals by combining 3D electron diffraction (3D ED) and environmental transmission electron microscope (TEM). Environmental conditions, including cryo, heating, gas and liquid, have been successfully achieved using in situ holders to reveal the simuli-responsive structures of crystals. Remarkable structural changes have been directly resolved by 3D ED in one flexible metal-organic framework, MIL-53, owing to the response of framework to pressures, temperatures, guest molecules, etc. Materials' structure of are often sensitive to external stimuli, which will bring uncertainty to the structure determination. Here authors present a 3D electron diffraction approach to study the stimuli responsive structures of crystals with atomic precision under various environmental conditions.
Keyword:
METAL-ORGANIC FRAMEWORK
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SOFTWARE
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期刊
IF:
15.7
论文数:
9.4W
被引数:
91.2W
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