Mass spectral fragmentation nitriles

All the well-characterized 1,2,3-triazine derivatives are stable, high-melting solids. The 4,5,6-triaryl derivatives show UV maxima in the range 259-286 nm (log e = 4.09-4.42), 4,5-diphenyl-1,2,3-triazine has Amai at 251 nm, while the 4,5,6-trimethyl derivative shows two maxima at 217 nm (log e — 3.63) and 278 nm (log e = 2.79). Mass spectral studies indicate that fragmentation takes place in an identical fasMon to that observed during photochemical decomposition, i.e., with production of acetylenes, nitriles, and nitrogen. ... 

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