Synthesis and characterization of an intermediary of new heat-resistant energetic materials

Nitration of 4,4′-biphenyldicarboxylic acid (BPDC) was studied and an aromatic carboxylic acid containing two nitro groups was synthesized and characterized through elemental analysis and IR spectra. Crystal structure of DNBPDC (DNBPDC = 2,2′-dinitro-4,4′-biphenyldicarboxylic acid) was determined by X-ray single crystal diffraction and the thermal decomposition was carried out through DSC and TG–DTG analyses.