1H-NMR and 13C-NMR Spectra of 1,2,2-trichloropropane

1H-NMR and 13C-NMR Spectra of 1,2,2-trichloropropane The molecule has 3 different carbons, so the proton-spin decoupled 13C-NMR spectra will have 3 peaks. The molecule has only two different types of protons that are not coupled so the 1H-NMR will have two unsplit singlet signals. Off-Resonance-Decoupled 13C-NMR Spectrum of 1,2,2-trichloropropane Off-resonance-decoupled 13C-NMR Spectra of 1,2,2-trichloropropane. The CCl2 group appears as a singlet, the CH2Cl group appears as a triplet, and the CH3 group as a quartet. The off-resonance-decoupled carbon spectrum will show the spin-spin splitting between the carbon and the hydrogen it has attached to it. The N+1 rule applies so a carbon with 3 hydrogens on it will give rise to a quartet, while a carbon with only 1 hydrogen will have a doublet. Carbons with no hydrogens attached to them will have singlet signals.