Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 58, Issue 52, Pages 19081-19086Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201912236
Keywords
crystal structure; elastic bending; heat setting; low temperature; organic crystals
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Funding
- National Natural Science Foundation of China [51622304, 51773077, 51603082, 51773079]
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Organic single crystals with elastic bending capability and potential applications in flexible devices and sensors have been elucidated. Exploring the temperature compatibility of elasticity is essential for defining application boundaries of elastic materials. However, related studies have rarely been reported for elastic organic crystals. Now, an organic crystal displays elasticity even in liquid nitrogen (77 K). The elasticity can be maintained below ca. 150 degrees C. At higher temperatures, the heat setting property enables us to make various shapes of crystalline fibers based on this single kind of crystal. Through detailed crystallographic analyses and contrast experiments, the mechanisms behind the unusual low-temperature elasticity and high-temperature heat setting are disclosed.
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