This paper describes the explosive sensitivity and performance properties of two novel high-nitrogen materials, 3,6-bis-nitro-guanyl-1,2,4,5-tetrazine (1, (NQ(2)Tz)) and its corresponding bis-triaminoguanidinium salt (2, (TAG)(2)(NQ)(2)Tz)). These materials exhibit very low pressure dependence in burning rate. Flash pyrolysis/FTIR spectroscopy was performed, and insight into this interesting burning behavior was obtained. Our studies indicate that 1 and 2 exhibit highly promising energetic materials properties.