Diisocyanogen 3, the least stable C2N2 isomer, was obtained in the flash vacuum pyrolysis of 2. According to calculations CNNC 3 is about 65 kcal mol−1 less stable than dicyanogen (NCCN) and polymerizes in solution above −30°C. The azine 2 was prepared in 65% yield from quadricyclanoneazine 1. 3 could be identified 13C-NMR and 14N-NMR spectroscopically as well as mass spectrometrically.
No takes yet. Share an insight, caveat, or question.
Does et al. (1988) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: