Application of 1- and 2-propargyl-tetrazole in laser-ignitable energetic coordination compounds
Simon M.J. Endraß,
Thomas M. Klapötke,
Jasmin T. Lechner,
Jörg Stierstorfer
Affiliations
Simon M.J. Endraß
Energetic Materials Research, Department of Chemistry, Ludwig Maximilian University Munich, Butenandtstr. 5–13, 81377 Munich, Germany; EMTO GmbH, Energetic Materials Technology, 81477 Munich, Germany
Thomas M. Klapötke
Energetic Materials Research, Department of Chemistry, Ludwig Maximilian University Munich, Butenandtstr. 5–13, 81377 Munich, Germany; EMTO GmbH, Energetic Materials Technology, 81477 Munich, Germany
Jasmin T. Lechner
Energetic Materials Research, Department of Chemistry, Ludwig Maximilian University Munich, Butenandtstr. 5–13, 81377 Munich, Germany; EMTO GmbH, Energetic Materials Technology, 81477 Munich, Germany
Jörg Stierstorfer
Energetic Materials Research, Department of Chemistry, Ludwig Maximilian University Munich, Butenandtstr. 5–13, 81377 Munich, Germany; EMTO GmbH, Energetic Materials Technology, 81477 Munich, Germany; Corresponding author.
1- and 2-Propargyl-tetrazole (1- and 2-PryTz) were synthesized by reaction of propargyl bromide with sodium tetrazolate and used as ligands in energetic coordination compounds (ECCs) and evaluated concerning their thermal and mechanical sensitivities. Furthermore, the two nitrogen-rich compounds 1-((1H-1,2,3-triazol-4-yl)methyl)-1H-tetrazole (TriMT, 3) and 1-((1-(2-(1H-tetrazol-1-yl)ethyl)-1H-1,2,3-triazol-4-yl)methyl)-1H-tetrazole (TriMTET, 4) were prepared. Both were characterized by IR spectroscopy, NMR measurements, and low-temperature X-Ray diffraction analysis. Due to the highly endothermic enthalpy of formation of the propargyl-tetrazole ligands, powerful, yet relatively safe to handle, laser-ignitable ECCs were obtained.
