The synthesis and handling of compounds containing long catenated nitrogen chains
are challenging for researchers in this field. These challenges arise from their high
endothermic, thermodynamic instability, and a serious lack of nitrogen–nitrogen bond-forming
reactions. This paper addresses techniques of azo-coupling reaction between the diazonium
salt of N-NH2 and amine derivative to form the longest nitrogen chain (N11). This type of nitrogen–nitrogen bond formation opens a new strategy for the construction
of novel compounds containing odd or even numbers of catenated nitrogen atoms (≥9)
especially for polynitrogen compounds.
Key words
azo coupling - energetic materials - catenated nitrogen-atom chain - formation of
nitrogen–nitrogen bond - tetrazole