Kinetics and mechanism of thermal decomposition of 1-R-substituted  bis(1,1-dinitromethyl-3-Nitro-1,2,4-triazole-5-yl)

Chemistry, Vol 13, No 1 (2020)

Kinetics and mechanism of thermal decomposition of 1-R-substituted bis(1,1-dinitromethyl-3-Nitro-1,2,4-triazole-5-yl)

Lyudmila A. Kruglyakova, Rudolf S. Stepanov, Konstantin V. Pekhotin, Oksana A. Golubtsova

Abstract

Thermal decomposition kinetics of 1-substituted bis(1,1-dinitromethyl-3-Nitro-1,2,4-triazole-5-yl) in solution of 1,3-dinitrobenzene is studied with manometric method under isothermal conditions. The limiting stage of thermal decomposition is homolytic break of C-NO₂ bond in gem-dinitromethyl group; activation parameters of this stage are calculated. The reactivity of investigated compounds is analyzed. Correlation dependences between logarithm of rate constant, activation energy and steric constant of substituent R are obtained.