Abstract:SUMMARY"O-NMR spectra of benzofurazan oxide at room temperature show two resonance lines. This adds evidence to support the N-oxide structure to be correct. The 170 spectra are dependent on temperature, due to an equilibration. The average lifetime of the tautomers is of the order of lo-* s at + 45°C. The activation energy of the equilibrium is found to be 17,2 & 1,5 kcal/molc and the frequency factor is 3 * 1014
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.