Synthesis and crystal structure of 4-amino-3,5-dinitropyrazole sodium salt

A novel energetic material, 4-amino-3,5-dinitropyrazole sodium salt (ADNPNa), was firstly synthesized in a yield of 86.26%. The structure of ADNPNa was confirmed by IR and elemental analysis. The single crystal of ADNPNa was determined by single crystal X-ray diffraction. The crystal belongs to triclinic system, space group P−1 with crystal parameters a=6.284(4)A, b=6.480(4)A, c=9.729(6)A, β= 95.294(9)°, V=365.0(4)A3, Z=2, μ=0.227mm−1, F(000)= 216, and Dc=1.939g/cm3.