Radical stabilization and ground state polar substituent effects in the thermal decomposition of azoalkanes

Article abstract of DOI:10.1021/ja00103a012

The thermolysis rates of a series of the 1,4-diaryl-2,3-diaza[2.2.1]bicyclohept-2-ene derivatives 1 with a large variety of aryl substituents (p-NH₂, p-OMe, p-Me, H, p-F, p-Cl, p-Br, m-I, p-I, m-CN, p-CN, m-NO₂, p-NO₂, and