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金属間相互作用の増強が鍵となる光誘起結晶相転移とPhotosalient効果

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Title: 金属間相互作用の増強が鍵となる光誘起結晶相転移とPhotosalient効果
Other Titles: Photoinduced Crystalline Structure Change and Photosalient Effect through Strengthening Metallophilic Interaction
Authors: 関, 朋宏1 Browse this author →KAKEN DB
伊藤, 肇2 Browse this author
Authors(alt): SEKI, Tomohiro1
ITO, Hajime2
Issue Date: 2015
Journal Title: 日本結晶学会誌
Volume: 57
Issue: 4
Start Page: 226
End Page: 232
Publisher DOI: 10.5940/jcrsj.57.226
Abstract: We report the first photoinduced single-crystal-to-single-crystal (SCSC) phase transition of a gold complex 1 that involves strengthening of intermolecular aurophilic interactions. This is also the first solid state photochromism of gold complexes. Upon UV irradiation, blue-emitting crystals 1B of aryl gold(I) isocyanide complex 1 transform into the weakly yellow-emitting crystals 1Y. X-ray diffraction analyses exhibit that the phase transition proceeds in an SCSC manner. After phase transition from 1B to 1Y, the intermolecular Au…Au separation decreases from 3.5041(14) to 3.2955(6) Å, resulting in a red-shifted emission. The photoinduced strengthening of the aurophilic interactions in the excited state initiates the change in the crystal structure from 1B to 1Y. Moreover, crystal 1B showed a photosalient effect: the 1B crystals jump upon irradiation with strong UV light owing to the phase transition into 1Y. The photoinduced strengthening of aurophilic interactions in the crystal generate the sudden mechanical movement of the crystal.
Type: article
URI: http://hdl.handle.net/2115/59810
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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