Question

4. Determine the name and structure of the compound represented by the mass spectrum shown below. 100- Relative htensity 70 10 20 30 (6 pts.)

Answer 1

A mass spectrum is used to determine the structure of a compound that is given as the intensity vs m/z plot representing a chemical analysis .

So the answer to the asked question that is the name and structure of the compound is given in detailed manner in the images attached.

I hope it will help you.

Thanks.

I Ans: As the spectra te the mass spectra girer to us, shows two very prominent peops (I) at m/2=91 Intensity = 100% (II) at ml = 92 , Intensity = close to 80% So, the peak at m/2=91, le 100% Intense I will be called as Base peak. & the peak having m/z = 92 will be called as molecular peak. # * So, It is very important point to always - remember that a peak at m/2=91 is for tropylium Galion , this is a very strong peak formed by the rearrangement of benzyl catión I ] (Ca te jt OCH Benzyl 47812 +8x1) 34+= 91 Chaug: + Propylium Calton 1

But, as we can see from specia, that the peak at mlez= 92 is the molecular peak. This is for toluene as ( Here, qHg 1 (7x12 +8x1) 4 84 +8 = 92 m =92 Солее 40 . mk - 92-. an! Toluene whole proces can be written _ +CH2 SCHA gonisation Rearrangement + ut Toluene Benzy) Calion Tropylium Cation mer: 91