Softening and Hardening of Macro- and Nano-Sized Organic Cocrystals in a Single-Crystal Transformation
AFM nanoindentation was used to demonstrate that millimeter‐ and nanometer‐sized organic cocrystals exhibit changes in the mechanical properties before, during, and after a single‐crystal‐to‐single‐crystal [2+2] photodimerization of olefins. Millimeter‐sized crystals become 40 % softer, whereas nano...
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Veröffentlicht in: | Angewandte Chemie International Edition 2011-09, Vol.50 (37), p.8642-8646 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | AFM nanoindentation was used to demonstrate that millimeter‐ and nanometer‐sized organic cocrystals exhibit changes in the mechanical properties before, during, and after a single‐crystal‐to‐single‐crystal [2+2] photodimerization of olefins. Millimeter‐sized crystals become 40 % softer, whereas nanocrystals of the same material become 40 % harder following the photoreaction. |
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ISSN: | 1433-7851 1521-3773 |
DOI: | 10.1002/anie.201102370 |