Toward New Approaches in Study of the Initiatory Reactivity of Nitramines

Abstract

The relationships between sensitiveness and the crystal lattice free space per molecule, deltaV, in the nitramines crystals is described by equations which are divided into a number of sub-relationships, each from them with a strong limitation by the molecular-structural characteristics of such compounds. With exception of the impact sensitivity, increasing deltaV values are leading mostly to decreasing of initiatory reactivity of the nitramines studied. Several little exceptions from the mentioned trends have own analogues in other relationships of sensitivity, for example “spark energies - bond dissociation energies” or in the case of relation “impact sensitivity – volume heat of explosion”. The found relationships for the impact and friction sensitivities confirm the disorder in distribution of the forces in the crystal lattice of the “common” quality of epsilon-2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaaza-isowurtzitane (CL-20), in comparison with its RS (reduced sensitivity) or chemically pure analogue; these relationships allow also to speculate, which nitro groups in the CL-20 molecule might have a main participation in the intermolecular interactions for its particular kind.