1,5-Diaminotetrazole-4N-oxide (SYX-9): a new high-performing energetic material with a calculated detonation velocity over 10 km s-1

5-Amino-1-benzyloxytetrazole was aminated with O-tosylhydroxylamine. The diaminobenzyloxytetrazolium intermediate was debenzylated to yield the highly energetic 1,5-diaminotetrazole-4N-oxide (SYX-9). The molecule underwent both chemical and energetic characterization, including N-15 NMR spectroscopy and single-crystal X-ray crystallography, which reported a 1.820 g cm(-3) ambient temperature density. Theoretical energetic performances were determined by a combined experimental-computational method using calculated heats of formation and experimental room temperature densities. SYX-9 was calculated to have an exciting detonation velocity of 10 000 m s(-1), making this energetic tetrazole molecule one of the few energetic materials reaching this high performance milestone. This material was found to be very sensitive to mechanical and thermal stimuli.

Automated summary

This study investigated the synthesis and characterization of the highly energetic 1,5-diaminotetrazole-4N-oxide (SYX-9). SYX-9 was found to have an exciting detonation velocity but was very sensitive to mechanical and thermal stimuli.