Molecular design of long intra‐annular nitrogen chains: 3H‐tetrazolo[1,5‐d]tetrazole‐based high‐energy‐density materials

Energetic compounds containing long nitrogen chain, have been a research hotspot. Fused heterocycles are stable due to their aromatic systems. Compounds obtained by combining long nitrogen chain and fused ring can not only retain good energetic property, but also ensure better stability. In this work, eight fused heterocycle‐based energetic compounds, 3H‐tetrazolo[1,5‐d]tetrazole ( 1 ) and its derivatives ( 2 – 8 ), were designed, containing a...