2,3,5,6-Tetra(1<i>H</i>-tetrazol-5-yl)pyrazine: A Thermally Stable Nitrogen-Rich Energetic Material

Abstract

A synthetic protocol was developed to create a unique nitrogen-rich (71.58% N) energetic material, namely, 2,3,5,6-tetra(1H-tetrazol-5-yl)pyrazine (H4TTP). This compound was prepared using a convenient and straightforward method of synthesis and shows useful energetic properties such as detonation velocity (VC-J = 8655 m s–1), detonation pressure (pC-J = 28.0 GPa), and high temperature of decomposition (Tdec = 260 °C). H4TTP was isolated and characterized using mass spectrometry, multinuclear (1H, 13C) NMR spectroscopy, and vibrational spectroscopy (IR, Raman). The molecular structure was determined via single-crystal X-ray diffraction. High nitrogen content and relative planarity of the molecule, along with the attained properties such as hydrolytic stability, high thermal stability, density, detonation velocity, and its facile synthesis, make H4TTP a highly interesting energetic material.