Host-Guest Technique for Designing Highly Energetic Compounds with the Nitroamino Group.

A new energetic material, 2-azido-4,7-nitroamino-1-imidazo[4,5-]pyridazine () with a highly sensitive azido group and its host-guest compounds (/HO and /HO), and energetic salts were obtained. With the guest and protons in host molecules, an abundant hydrogen bond system can be formed. This results in high crystal density and good sensitivity, which suggests that the host-guest strategy is a promising way to balance the contradiction between energy and sensitivity and provides a new path to obtain a new generation of high energetic materials.