Science & Fun | Home | Introduction into the ¹H NMR Spectroscopy

94

You would expect to observe a doublet if the proton H^A would interact only with the proton H^M (n = 1, and therefore M = 2)!

However, the protons H^X are also separated from H^A by only three bonds

(

ClCH	=	CH	-	CH₂Cl
M		A		X

), and they also should contribute to the splitting of the energy levels of

H^A!

You might want to check the summary on page 95 for additional explanations!