In: Chemistry
write structural formulas of each fragment and molecular ion on the ms spectrum of anise
in the explaination you may see that the molecular mass will be less/more by 1 . this shows that the praton attacks this to form raducal cation and get the exact mass . i couldnt show that here...
hope it was helpful
molecular ion peak is 148
rest all is fragmentation of benzene
77 is for benzene