A proton NMR for Limonene is described. There is a peak at 7.240 with an integra

Question

A proton NMR for Limonene is described. There is a peak at 7.240 with an integrated value of 1.000. There is a quartet at 4.691, 4.689, 4.688, and 4.686 with an integrated value of 13.259. There is a doublet at 1.718 and 1.717 with an integrated value of 20.153. There is a doublet at 1.715 and 1.636 with an integrated value of 19.908. The transmitter frequency is 500.132508 MHz. The solvent is CDCl3, which is probably the peak at 7.240. Describe the NMR using the American Chemical Society (ACS) format for the experimental data.

Explanation / Answer

In the proton NMR of limonene, the peak at 7.240 ppm is due to CDCl3 solvent used as standard in the NMR analysis.

The NMR data would be : 4.688 ppm (2H, q, J = 1) for CH2 ; 1.717 ppm (3H, d, J = 0.5) for CH3 ; 1.675 ppm (3H, d 39.51) for CH3

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