Standard enthalpy of formation of some nitropyrazolyltetrazoles

摘要

The experimental values of the heats of combustion ) and standard enthalpies of formation (ΔH~o_f)for isomeric nitropyrazolyltetrazole derivatives have been determined. It has been established that there is a significant effect of positional isomerism on thermochemi-cal characteristics. The quantitative contribution of some explosophoric groups into the total ΔH~o_f value of the compounds have been determined. These data may be used for a correct evaluation of the ΔH~o_f values of known energetic compounds as well as of hypothetic ones.