Abstract
1. A general program was compiled for the calculation of the NMR spectra in systems with intermolecular exchange. 2. The rates and parameters of the activation of intramolecular topomerization and intermolecular proton exchange in l,4-dimethylhexahydro-l,2,4,5-tetrazine (HHT) were determined by an analysis of the exchange broadenings in the PMR spectra on an electronic computer. 3. The limiting step of the indicated processes is inversion of nitrogen atoms. The peculiarities of the conformational structure of HHT are discussed.
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