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Synthesis of AgN5 and its extended 3D energetic framework

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Listed:
  • Chengguo Sun

    (Nanjing University of Science and Technology
    University of Science and Technology Liaoning)

  • Chong Zhang

    (Nanjing University of Science and Technology)

  • Chao Jiang

    (Nanjing University of Science and Technology)

  • Chen Yang

    (Nanjing University of Science and Technology)

  • Yang Du

    (Nanjing University of Science and Technology)

  • Yue Zhao

    (Nanjing University of Science and Technology)

  • Bingcheng Hu

    (Nanjing University of Science and Technology)

  • Zhansheng Zheng

    (Nanjing University of Science and Technology)

  • Karl O. Christe

    (Nanjing University of Science and Technology
    University of Southern California)

Abstract

The pentazolate anion, as a polynitrogen species, holds great promise as a high-energy density material for explosive or propulsion applications. Designing pentazole complexes that contain minimal non-energetic components is desirable in order to increase the material’s energy density. Here, we report a solvent-free pentazolate complex, AgN5, and a 3D energetic-framework, [Ag(NH3)2]+[Ag3(N5)4]ˉ, constructed from silver and cyclo-N5ˉ. The complexes are stable up to 90 °C and only Ag and N2 are observed as the final decomposition products. Efforts to isolate pure AgN5 were unsuccessful due to partial photolytical and/or thermal-decomposition to AgN3. Convincing evidence for the formation of AgN5 as the original reaction product is presented. The isolation of a cyclo-N5ˉ complex, devoid of stabilizing molecules and ions, such as H2O, H3O+, and NH4+, constitutes a major advance in pentazole chemistry.

Suggested Citation

  • Chengguo Sun & Chong Zhang & Chao Jiang & Chen Yang & Yang Du & Yue Zhao & Bingcheng Hu & Zhansheng Zheng & Karl O. Christe, 2018. "Synthesis of AgN5 and its extended 3D energetic framework," Nature Communications, Nature, vol. 9(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-03678-y
    DOI: 10.1038/s41467-018-03678-y
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