Compound A is examined using carbon-13 NMR and proton ($^1\text{H}$) NMR spectroscopy. Fig. 8.1 shows the structure of A.
(a)[1]
State the reference substance and a solvent that may be used in NMR spectroscopy.
(b)[1]
Predict how many peaks will appear in the carbon-13 NMR spectrum of A.
(c)[4]
The proton ($^1\text{H}$) NMR spectrum of A has peaks in four distinct chemical environments. Complete Table 8.1 for the proton ($^1\text{H}$) NMR spectrum of A.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “TMS as the reference substance AND $\mathrm{D_2O}$ or $\mathrm{CDCl_3}$ as the solvent” …