Synthesis and Characterization of Guanidinium Difluoroiodate, [C(NH2)3]+[IF2O2]– and its Evaluation as an Ingredient in Agent Defeat Weapons‡

Abstract Ammonium and guanidinium difluoroiodate(V), [NH 4 ] + [IF 2 O 2 ] – ( 1a ) and [C(NH 2 ) 3 ] + [IF 2 O 2 ] – ( 1b ), and diazidoglyoxime, [N 3 C=N–OH] 2 ( 2 ) were synthesized and the molecular structures in the solid state of 1b and 2 were elucidated by single‐crystal X‐ray diffraction. 1b : P $\bar{1}$ , a = 6.6890(5), b = 10.2880(6), c = 10.30.92(8) Å, α = 105.447(6), β = 108.568(7), γ = 91.051(5)°, V = 644.08(8) Å 3 , ρ = 2.650 g · cm –3 ; 2 : P 2 1 / n , a = 4.4211(3), b = 13.7797(9), c = 4.9750(3) Å, β = 98.735(6), V = 299.57(3) Å 3 , ρ = 1.886 g · cm –3 . The suitability of compounds 1a and 1b as active ingredients for agent defeat weapons (ADW) with biocidal activity has been shown in detonation tests using geobacillus stearothermophilus spores. In addition, a complete energetic characterization of the promising primary explosive 2 is given.