I am used to reading mass spectrums of elements with giant atomic stuctures e.g. copper and zinc so im finding this quite hard.
At the moment I am looking at a mass spectrum for paracetemol (4-Hydroxy-(N-ethanoyl-aminobenzene)) which has four main m/z peaks at around 43, 80, 110 and 151.
I know fragmentation will occur but i cannot account for all of them. The peak at 151 can be accounted for the unfragmented molecule and 43 for a C2H3O group but what about the rest. I would have thought the c-c bond would be most easily broken but there is no evidence for any methyl radicals?
Help would be much appreciated