“…In present work, a systematic study on the geometric and electronic structures, molecular electrostatic potentials, densities, heats of formation, detonation properties and impact sensitivities of ZTO and its nitrogen-rich salts were carried out through theoretical methods. Seven compounds including 4,4′-azo-1 H -1,2,4-triazol-5-one (ZTO, 1), 19,20 ammonium 4,4′-azo-1 H -1,2,4-triazol-5-one (A(ZTO), 2), 23 guanidinium 4,4′-azo-1 H -1,2,4-triazol-5-one (G(ZTO), 3), 18 amino-guanidinium 4,4′-azo-1 H -1,2,4-triazol-5-one (AG(ZTO), 4), 24 diamino-guanidinium 4,4′-azo-1 H -1,2,4-triazol-5-one (DAG(ZTO), 5), 24 triamino-guanidinium 4,4′-azo-1 H -1,2,4-triazol-5-one (TAG(ZTO), 6), 24 Bis(guanidinium) 4,4′-azo-1 H -1,2,4-triazol-5-one (G 2 (ZTO), 7) 25 were studied.…”