Taming nitroformate through encapsulation with nitrogen-rich hydrogen-bonded organic frameworks

Jichuan Zhang, Yongan Feng, Richard J. Staples, Jiaheng Zhang () and Jean’ne M. Shreeve ()
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Jichuan Zhang: University of Idaho
Yongan Feng: North University of China
Richard J. Staples: Michigan State University
Jiaheng Zhang: Harbin Institute of Technology
Jean’ne M. Shreeve: University of Idaho

Nature Communications, 2021, vol. 12, issue 1, 1-7

Abstract: Abstract Owing to its simple preparation and high oxygen content, nitroformate [−C(NO2)3, NF] is an extremely attractive oxidant component for propellants and explosives. However, the poor thermostability of NF-based derivatives has been an unconquerable barrier for more than 150 years, thus hindering its application. In this study, the first example of a nitrogen-rich hydrogen-bonded organic framework (HOF-NF) is designed and constructed through self-assembly in energetic materials, in which NF anions are trapped in pores of the resulting framework via the dual force of ionic and hydrogen bonds from the strengthened framework. These factors lead to the decomposition temperature of the resulting HOF-NF moiety being 200 °C, which exceeds the challenge of thermal stability over 180 °C for the first time among NF-based compounds. A large number of NF-based compounds with high stabilities and excellent properties can be designed and synthesized on the basis of this work.

Date: 2021
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DOI: 10.1038/s41467-021-22475-8

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