Chapter G, Problem G.2YT

Interpretation Introduction

Interpretation:

Consider the mass peaks at m/z=71 and m/z=29 in Figure G-3. The peak that represents the more stable fragment ion is to be determined. The reason accounting for the fragment ions that correspond to those peaks is to be explained.

Concept introduction:

The ${\text{M}}^{\text{+}}$ peak of a mass spectrum is taken to be the compound’s molecular mass. The ratio of the M+1 peak intensity to the ${\text{M}}^{\text{+}}$ peak intensity increases as the number of carbon atoms in the molecule increases. In general, a fragmentation pathway becomes more likely as the stability of the fragment ion produced increases.