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Atomically precise nanoclusters with reversible isomeric transformation for rotary nanomotors

Author

Listed:
  • Zhaoxian Qin

    (Chinese Academy of Sciences
    Capital Normal University
    University of Chinese Academy of Sciences)

  • Jiangwei Zhang

    (Chinese Academy of Sciences)

  • Chongqing Wan

    (Capital Normal University)

  • Shuang Liu

    (Chinese Academy of Sciences)

  • Hadi Abroshan

    (Carnegie Mellon University)

  • Rongchao Jin

    (Carnegie Mellon University)

  • Gao Li

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

Abstract

Thermal-stimuli responsive nanomaterials hold great promise in designing multifunctional intelligent devices for a wide range of applications. In this work, a reversible isomeric transformation in an atomically precise nanocluster is reported. We show that biicosahedral [Au13Ag12(PPh3)10Cl8]SbF6 nanoclusters composed of two icosahedral Au7Ag6 units by sharing one common Au vertex can produce two temperature-responsive conformational isomers with complete reversibility, which forms the basis of a rotary nanomotor driven by temperature. Differential scanning calorimetry analysis on the reversible isomeric transformation demonstrates that the Gibbs free energy is the driving force for the transformation. This work offers a strategy for rational design and development of atomically precise nanomaterials via ligand tailoring and alloy engineering for a reversible stimuli-response behavior required for intelligent devices. The two temperature-driven, mutually convertible isomers of the nanoclusters open up an avenue to employ ultra-small nanoclusters (1 nm) for the design of thermal sensors and intelligent catalysts.

Suggested Citation

  • Zhaoxian Qin & Jiangwei Zhang & Chongqing Wan & Shuang Liu & Hadi Abroshan & Rongchao Jin & Gao Li, 2020. "Atomically precise nanoclusters with reversible isomeric transformation for rotary nanomotors," Nature Communications, Nature, vol. 11(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-19789-4
    DOI: 10.1038/s41467-020-19789-4
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