KINETICS AND MECHANISM OF THERMAL DECOMPOSITION OF R-gem-DINITROETHYL ESTERS OF N-NITRAMINOACETIC ACID ON THE BASIS OF 3-NITRO-1,2,4-TRIAZOLE

摘要

Thermal decomposition of R-gem-dinitroethyl esters of N-nitraminoacetic acid on the basis of 3-nitro-1,2,4-triazole is studied. Mechanism of thermal decomposition is discovered. Decomposition reaction is homolytic and follows the first order equation. The steric effect of α-R-substituent at gem-dinitroethyl group influences on the decomposition rate. The activation parameters for the limiting stage are defined. The quantitative relationships between the logarithm of the rate constant, activation energy, and the steric constant E_s of substituent are found. These relationships allow predicting the thenvostability of unstudied compounds of this row.