Issue 18, 2023

The combined effect of pyrazole and amino groups: preparation of novel energetic coordination compounds with high ClO4 content

Abstract

The development of novel coordination compounds as energetic materials still faces significant challenges, particularly in overcoming the proportion of negative ions, which is a challenging task. Here, we prepare the ligand HDAPZCA (3,5-diamino-1H-pyrazole-4-carbohydrazide), whose skeletal ring and substituent play different roles. The coordination compound Cu(H2DAPZCA)2(ClO4)4·5H2O (EIsCCs-1·2H2O) obtained by using it as a ligand possesses dual structural units of an ionic salt and a coordination compound. The novel structure of EIsCCs-1 endows it with a higher ClO4 content, acceptable thermal stability (Td = 200 °C), good mechanical sensitivity (IS = 7 J, FS = 30 N), and outstanding detonation performance (DEXPLO 5 = 8.0 km s−1, PEXPLO 5 = 30.9 GPa). In addition, EIsCCs-1 not only has a low energy threshold for laser initiation (E = 48 mJ) but also can be used as both a primary explosive and a secondary explosive at the same time.

Graphical abstract: The combined effect of pyrazole and amino groups: preparation of novel energetic coordination compounds with high ClO4− content

Supplementary files

Article information

Article type
Research Article
Submitted
04 Jul 2023
Accepted
28 Jul 2023
First published
31 Jul 2023

Inorg. Chem. Front., 2023,10, 5311-5319

The combined effect of pyrazole and amino groups: preparation of novel energetic coordination compounds with high ClO4 content

T. Wang, C. Zhang, M. Xu, B. Kuang, Z. Xie, Z. Lu, Z. Yi, Y. Li and J. Zhang, Inorg. Chem. Front., 2023, 10, 5311 DOI: 10.1039/D3QI01246H

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