New energetic complexes of copper(II) and the acetone carbohydrazide Schiff base as potential flame colorants for pyrotechnic mixtures

Oleksandr S. Bushuyev, Forrest A. Arguelles, Preston Brown, Brandon L. Weeks, Louisa J. Hope-Weeks

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The drive to find viable alternatives to common explosives has resulted in increased interest in the development of new transition-metal organometallic energetic materials. To this end we report on the synthesis and characterization of the new energetic compounds, [CuX2(C7H 14N4O)2·H2O] (X = ClO 4-; NO3-), in addition to a new pathway to synthesizing copper hydrazinium chloride (CuCl3 -N2H5+) in a clean facile way. All three complexes were characterized by low temperature single-crystal X-ray diffraction, while the two new compounds were also characterized by elemental analysis, thermogravimetric analysis, and differential scanning calorimetry. Because of the energetic nature of the new compounds, drop hammer and spark ignition tests were performed; Cu(NO3)2(C 7H14N4O)2 was insensitive to both and Cu(ClO4)2(C7H14N 4O)2 proved to be shock sensitive at high impact forces. It is expected that both of the compounds could be utilized in pyrotechnics as generators of green and blue colors, respectively.

Original languageEnglish
Pages (from-to)4622-4625
Number of pages4
JournalEuropean Journal of Inorganic Chemistry
Issue number29
DOIs
StatePublished - Oct 2011

Keywords

  • Calorimetry
  • Copper
  • Flame colorants

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