3 years ago

1D energetic metal–organic frameworks assembled with energetic combination of furazan and tetrazole

1D energetic metal–organic frameworks assembled with energetic combination of furazan and tetrazole
Two novel 1D Cd(II) energetic MOFs [Cd(NH2NH2)(AFT)2·0.7H2O] n (1) and [Cd(ODH)1.5(AFT)2·5H2O] n (2), combining the advantages of tetrazole-ring and furazan-ring, were successfully synthesized based on 2D energetic MOF [Cd(H2O)2(AFT)2] n (3, AFT=4-amino-3-(5-tetrazolate)-furazan, ODHNH2NHCOCONHNH2 oxalyl-dihydrazide). The crystal structures were determined by single-crystal X-ray diffraction, and fully characterized by elemental analysis and FT-IR spectroscopy. The thermal stability and impact sensitivity were also investigated. For 1, 1D energetic MOF had an outstanding thermal stability (T p >300 °C) and insensitivity (IS>24.5 J). In addition, the non-isothermal kinetics parameters, critical temperature of thermal explosion, entropy of activation, enthalpy of activation and free energy of activation were discussed in detail. For 2, it was revealed that the each Cd(II) cation is located in a unique hepta-coordination environment. Noticeably, tetrazole-ring of AFT group presents typical monodentate coordination mode, and ODH molecule presents typical tridentate and tetradentate coordination modes, featuring a one-dimensional chain structure. Therefore, the reasonable assembly strategy plays a decisive role in energetic properties of MOF-based energetic materials.

Publisher URL: www.sciencedirect.com/science

DOI: S0277538717306800

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.