Desolvation of solid complexes of 1,7-diacetoxy-2,4,6-trinitro-2,4,6-triazaheptane with organic solvents

Abstract

Enthalpies of desolvation of solvent complexes of 1,7-diacetoxy-2,4,6-trinitro-2,4,6-triazaheptane (BSX) with dioxan, acetophenone, cyclohexanone, tetrachloroethane, formamide and NN-dimethylformamide have been measured using differential scanning calorimetry. The resulting values, together with literature values for solvates of 1,3,5,7-tetranitro-1,3,5,7-tetra-azacyclo-octane (HMX) show an approximately linear correlation with the square root of the enthalpy of evaporation of the solvent; the results are discussed in terms of a geometric mean ‘rule’ for the solid–solvent interaction energy.