Assembling an alkyl rotor to access abrupt and reversible crystalline deformation of a cobalt(II) complex

Sheng Qun Su, Takashi Kamachi, Zi Shuo Yao, You Gui Huang, Yoshihito Shiota, Kazunari Yoshizawa, Nobuaki Azuma, Yuji Miyazaki, Motohiro Nakano, Goro Maruta, Sadamu Takeda, Soonchul Kang, Shinji Kanegawa, Osamu Sato

研究成果: ジャーナルへの寄稿記事

16 引用 (Scopus)

抄録

Harnessing molecular motion to reversibly control macroscopic properties, such as shape and size, is a fascinating and challenging subject in materials science. Here we design a crystalline cobalt(II) complex with an n-butyl group on its ligands, which exhibits a reversible crystal deformation at a structural phase transition temperature. In the low-temperature phase, the molecular motion of the n-butyl group freezes. On heating, the n-butyl group rotates ca. 100° around the C-C bond resulting in 6-7% expansion of the crystal size along the molecular packing direction. Importantly, crystal deformation is repeatedly observed without breaking the single-crystal state even though the shape change is considerable. Detailed structural analysis allows us to elucidate the underlying mechanism of this deformation. This work may mark a step towards converting the alkyl rotation to the macroscopic deformation in crystalline solids.

元の言語英語
記事番号8810
ジャーナルNature communications
6
DOI
出版物ステータス出版済み - 11 4 2015

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assembling
Cobalt
rotors
cobalt
Rotors
Crystalline materials
Transition Temperature
Phase Transition
Heating
Crystals
Ligands
crystals
Temperature
Materials science
materials science
structural analysis
Structural analysis
Phase transitions
transition temperature
Single crystals

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

これを引用

Assembling an alkyl rotor to access abrupt and reversible crystalline deformation of a cobalt(II) complex. / Su, Sheng Qun; Kamachi, Takashi; Yao, Zi Shuo; Huang, You Gui; Shiota, Yoshihito; Yoshizawa, Kazunari; Azuma, Nobuaki; Miyazaki, Yuji; Nakano, Motohiro; Maruta, Goro; Takeda, Sadamu; Kang, Soonchul; Kanegawa, Shinji; Sato, Osamu.

:: Nature communications, 巻 6, 8810, 04.11.2015.

研究成果: ジャーナルへの寄稿記事

Su, Sheng Qun ; Kamachi, Takashi ; Yao, Zi Shuo ; Huang, You Gui ; Shiota, Yoshihito ; Yoshizawa, Kazunari ; Azuma, Nobuaki ; Miyazaki, Yuji ; Nakano, Motohiro ; Maruta, Goro ; Takeda, Sadamu ; Kang, Soonchul ; Kanegawa, Shinji ; Sato, Osamu. / Assembling an alkyl rotor to access abrupt and reversible crystalline deformation of a cobalt(II) complex. :: Nature communications. 2015 ; 巻 6.
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abstract = "Harnessing molecular motion to reversibly control macroscopic properties, such as shape and size, is a fascinating and challenging subject in materials science. Here we design a crystalline cobalt(II) complex with an n-butyl group on its ligands, which exhibits a reversible crystal deformation at a structural phase transition temperature. In the low-temperature phase, the molecular motion of the n-butyl group freezes. On heating, the n-butyl group rotates ca. 100° around the C-C bond resulting in 6-7{\%} expansion of the crystal size along the molecular packing direction. Importantly, crystal deformation is repeatedly observed without breaking the single-crystal state even though the shape change is considerable. Detailed structural analysis allows us to elucidate the underlying mechanism of this deformation. This work may mark a step towards converting the alkyl rotation to the macroscopic deformation in crystalline solids.",
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AU - Su, Sheng Qun

AU - Kamachi, Takashi

AU - Yao, Zi Shuo

AU - Huang, You Gui

AU - Shiota, Yoshihito

AU - Yoshizawa, Kazunari

AU - Azuma, Nobuaki

AU - Miyazaki, Yuji

AU - Nakano, Motohiro

AU - Maruta, Goro

AU - Takeda, Sadamu

AU - Kang, Soonchul

AU - Kanegawa, Shinji

AU - Sato, Osamu

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