Calculated
trigger-bond potential, Vmid,avg, and
molecular electrostatic potential surface maximum, Vmax, plotted against the experimentally observed
impact sensitivities (h50%) for the three
nitroaromatic explosives.5 RDX has a different
symbol as it is from a different chemical family, nitramines, and
its observed h50% has been obtained from
a different source.50 The variations between
the optimized and the most different crystalline conformations, HNB(opt
≈ expt), TNB(opt ≈ form III, molecule 1 in form I, molecule
2 in form II), TNT(opt, α), and RDX(opt(AAA), opt (AAE), α(AAE),
and ε(AAA)), are shown. The atomic charge variations and other
electrostatic properties (including Vmid,longest, Vmin) are given in Table S3, along with the plotted values.