Obtaining advanced insensitive energetic materials by regioselectively introducing N-oxide groups onto 6-trifluoromethyl-1,2,4,5-tetrazine-3-amine

Fluorine‐Containing Functional Group‐Based Energetic Materials

“…Among the fluorinecontaining functional groups used in energetic materials, the trifluoromethyl moiety has been widely reported and explored with extensive theoretical research and investigations regarding its practical applications. [89][90][91] Trifluoromethyl-based triazole derivatives were reported as insensitive energetic materials by Shreeve's group in 2021 (Scheme 5). [92] The reaction route combined 1-amino-1hydrazino-2,2-dinitroethylene (28, HFOX) as a precursor and monocarboxylic trifluoroacetic acid (TFA) to yield 3-(dinitromethyl)-5-(trifluoromethyl)-1H-1,2,4-triazole (30), 3-(trinitromethyl)-5-(trifluoromethyl)-1H-1,2,4-triazole (31), and nitrogen-rich energetic salts (32-34).…”

Keeping the Same Ratio of the Ligand and Perchlorate: Realizing the High Performance of Energetic Materials by Changing the Bonding Mode

“…10−12 Among them, most organic skeleton molecules come from heterocyclic rings, such as triazole and tetrazole, which can be modified by adding groups such as −NH 2 , −OH, and −NO 2 to change their N and O contents. 13,14 Oxidative acid ions can make great contributions to improving oxygen balance and detonation performance. 15,16 ECPs are obtained by the coordination covalent bond between ligands and metal ions.…”

“…Classical energetic ionic salts are formed by combining organic skeleton molecules with oxidizing acids (such as HClO 4 and HNO 3 ). − Among them, most organic skeleton molecules come from heterocyclic rings, such as triazole and tetrazole, which can be modified by adding groups such as −NH 2 , −OH, and −NO 2 to change their N and O contents. , Oxidative acid ions can make great contributions to improving oxygen balance and detonation performance. , ECPs are obtained by the coordination covalent bond between ligands and metal ions. The difference is that the ligands here are diverse.…”

Optimization of performance and sensitivity: preparation of two Ag(i)-based ECPs by using isomeric ligands

“…Due to the fact that their structures are usually difficult to interconvert, they need to be prepared by different synthetic routes according to different structural characteristics. [19][20][21] In recent years, energetic ionic salts and energetic coordination polymers (ECPs) have emerged as a research focus in the field of EMs, which are inseparable from the advantages of rigid "transformer"-like EMs: (1) ligands that are isomers of each other can be prepared by relatively simple methods and (2) by altering the combination of host and guest entities, the overall performance of the material can be adjusted and optimized to meet the technical requirements of different scenarios. [22][23][24][25][26] Wenqi Ma synthesized perchloric acid energetic ionic salts from [1,2,4]-triazolo[4,3-a][1,3,5]triazine-3,5,7-triamine and [1,2,4]-triazolo[1,5-a][1,3,5]triazine-2,5,7-triamine, which are isomers of each other, respectively (as shown in Scheme 1, Path 2).…”