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Mechanochromic Luminescence from Crystals Consisting of Intermolecular Hydrogen‐Bonded Sheets
| Title: | Mechanochromic Luminescence from Crystals Consisting of Intermolecular Hydrogen‐Bonded Sheets |
| Authors: | Yoshimitsu, Sagara Browse this author | | Kiyonori, Takahashi Browse this author →KAKEN DB | | Takayoshi, Nakamura Browse this author →KAKEN DB | | Tamaoki, Nobuyuki Browse this author →KAKEN DB |
| Keywords: | crystals | | hydrogen bonds | | mechanochromic luminescence | | photoluminescence | | stimuli-responsive material |
| Issue Date: | 17-Feb-2020 |
| Publisher: | Wiley-Blackwell |
| Journal Title: | Chemistry – An Asian Journal |
| Volume: | 15 |
| Issue: | 4 |
| Start Page: | 478 |
| End Page: | 482 |
| Publisher DOI: | 10.1002/asia.201901679 |
| Abstract: | Introduction of functional groups that can form intermolecular hydrogen bonds into highly-emissive luminophores is a promising way to induce mechanochromic luminescence. Herein, we report that a 9,10-bis(phenylethynyl)anthracene derivative featuring two amide groups forms green-emissive crystals based on two-dimensional hydrogen-bonded molecular sheets. Mechanical grinding changed the emission from green to yellow, owing to a transition from a crystalline to an amorphous phase. Infrared spectroscopy revealed that mechanical stimuli disrupted the linear hydrogen-bonding formation. A thermal treatment recovered the original green photoluminescence. |
| Rights: | This is the peer reviewed version of the following article: Y. Sagara, K. Takahashi, T. Nakamura, N. Tamaoki, Chem. Asian J. 2020, 15, 478, which has been published in final form at https://doi.org/10.1002/asia.201901679 . This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/80456 |
| Appears in Collections: | 電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 相良 剛光
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