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Photoluminescent Ferroelastic Molecular Crystals

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Title: Photoluminescent Ferroelastic Molecular Crystals
Authors: Seki, Tomohiro Browse this author →KAKEN DB
Feng, Chi Browse this author
Kashiyama, Kentaro Browse this author
Sakamoto, Shunichi Browse this author
Takasaki, Yuichi Browse this author
Sasaki, Toshiyuki Browse this author
Takamizawa, Satoshi Browse this author
Ito, Hajime Browse this author →KAKEN DB
Keywords: ferroelasticity
gold complex
mechanical property
Issue Date: 2-Jun-2020
Publisher: Wiley-Blackwell
Journal Title: Angewandte chemie-international edition
Volume: 59
Issue: 23
Start Page: 8839
End Page: 8843
Publisher DOI: 10.1002/anie.201914610
Abstract: Ferroelasticity has been reported for several types of molecular crystals, which show mechanical-stress-induced shape change under twinning and/or spontaneous formation of strain. Aiming to create materials that exhibit both ferroelasticity and light-emission characteristics, we discovered the first examples of ferroelastic luminescent organometallic crystals. Crystals of arylgold(I)(N-heterocyclic carbene)(NHC) complexes bend upon exposure to anisotropic mechanical stress. X-ray diffraction analyses and stress-strain measurements on these ferroelastic crystals confirmed typical ferroelastic behavior, mechanical twinning, and the spontaneous build-up of strain. A comparison with single-crystal structures of related gold-NHC complexes that do not show ferroelasticity shed light on the structural origins of the ferroelastic behavior.
Rights: This is the peer reviewed version of the following article: T. Seki, C. Feng, K. Kashiyama, S. Sakamoto, Y. Takasaki, T. Sasaki, S. Takamizawa, H. Ito, Angew. Chem. Int. Ed. 2020, 59, 8839, which has been published in final form at 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)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 関 朋宏

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