Molecular structure and magnetic parameters of septet 2,4,6-trinitrenotoluene

Septet 2,4,6-trinitrenotoluene as the major paramagnetic product formed during the photolysis of 2,4,6-triazidotoluene in cryogenic matrices which displays different electron paramagnetic resonance (EPR) spectra in solid argon and in 2-methyltetrahydrofuran (2MTHF) glass is reported. The significant changes of the spin densities on the three nitrene units due to interactions of the nitrogen atom with surrounding 2MTHF molecules demonstrated the very small parameter [E.sub.S] in 2MTHF glass.