Molecular motor-driven abrupt anisotropic shape change in a single crystal of a Ni complex

Zi Shuo Yao, Masaki Mito, Takashi Kamachi, Yoshihito Shiota, Kazunari Yoshizawa, Nobuaki Azuma, Yuji Miyazaki, Kazuyuki Takahashi, Kuirun Zhang, Takumi Nakanishi, Soonchul Kang, Shinji Kanegawa, Osamu Sato

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Many molecular machines with controllable molecular-scale motors have been developed. However, transmitting molecular movement to the macroscopic scale remains a formidable challenge. Here we report a single crystal of a Ni complex whose shape changes abruptly and reversibly in response to thermal changes at around room temperature. Variableerature single-crystal X-ray diffraction studies show that the crystalline shape change is induced by an unusual 90° rotation of uniaxially aligned oxalate molecules. The oxalate dianions behave as molecular-scale rotors, with their movement propagated through the entire crystalline material via intermolecular hydrogen bonding. Consequently, the subnanometre-scale changes in the oxalate molecules are instantly amplified to a micrometre-scale contraction or expansion of the crystal, accompanied by a thermal hysteresis loop. The shape change in the crystal was clearly detected under an optical microscope. The large directional deformation and prompt response suggest a role for this material in microscale or nanoscale thermal actuators.

Original languageEnglish
Pages (from-to)1079-1083
Number of pages5
JournalNature Chemistry
Volume6
Issue number12
DOIs
Publication statusPublished - Jan 1 2014

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Oxalates
Single crystals
Crystalline materials
Crystals
Molecules
Hysteresis loops
Hydrogen bonds
Microscopes
Actuators
Rotors
X ray diffraction
Hot Temperature
Temperature

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Molecular motor-driven abrupt anisotropic shape change in a single crystal of a Ni complex. / Yao, Zi Shuo; Mito, Masaki; Kamachi, Takashi; Shiota, Yoshihito; Yoshizawa, Kazunari; Azuma, Nobuaki; Miyazaki, Yuji; Takahashi, Kazuyuki; Zhang, Kuirun; Nakanishi, Takumi; Kang, Soonchul; Kanegawa, Shinji; Sato, Osamu.

In: Nature Chemistry, Vol. 6, No. 12, 01.01.2014, p. 1079-1083.

Research output: Contribution to journalArticle

Yao, ZS, Mito, M, Kamachi, T, Shiota, Y, Yoshizawa, K, Azuma, N, Miyazaki, Y, Takahashi, K, Zhang, K, Nakanishi, T, Kang, S, Kanegawa, S & Sato, O 2014, 'Molecular motor-driven abrupt anisotropic shape change in a single crystal of a Ni complex', Nature Chemistry, vol. 6, no. 12, pp. 1079-1083. https://doi.org/10.1038/nchem.2092
Yao, Zi Shuo ; Mito, Masaki ; Kamachi, Takashi ; Shiota, Yoshihito ; Yoshizawa, Kazunari ; Azuma, Nobuaki ; Miyazaki, Yuji ; Takahashi, Kazuyuki ; Zhang, Kuirun ; Nakanishi, Takumi ; Kang, Soonchul ; Kanegawa, Shinji ; Sato, Osamu. / Molecular motor-driven abrupt anisotropic shape change in a single crystal of a Ni complex. In: Nature Chemistry. 2014 ; Vol. 6, No. 12. pp. 1079-1083.
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