Advanced Organic Chemistry: 13C NMR spectrum of 1,2-dichloroethane ClCH2CH2Cl

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Interpreting and explaining the Carbon-13 NMR spectrum of 1,2-dichloroethane

[Author © Dr Phil Brown PhD: Doc Brown's advanced level organic chemistry exam revision notes suitable for students of UK A level chemistry courses & US K12 grade 11, grade 12 and AP honors chemistry courses: Molecular spectrometry - analysing the 13C NMR spectra of 1,2-dichloroethane [spectra page updated April 3rd 2026 *]

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Introductory note on the 13C NMR spectrum of 1,2-dichloroethane

Students and teachers please note that my explanation of the carbon-13 NMR spectrum of 1,2-dichloroethane is designed for advanced, but pre-university, chemistry courses.

The description does not involve the chemical shift δ spin-spin coupling effects for 1,2-dichloroethane and the relative size of the carbon-13 NMR shifts does not give the ratio of the carbon atoms in the different non-equivalent chemical environments of the 1,2-dichloroethane molecule.

The most common solvent used for investigating the 13C NMR spectrum of compounds like 1,2-dichloroethane, is CDCl3 and other deuterated solvents.

13C nmr spectrum of 1,2-dichloroethane C2H4Cl2 CH2ClCH2Cl analysis of chemical shifts ppm interpretation of C-13 chemical shifts ppm of 1,2-dichloroethane C13 13-C nmr doc brown's advanced organic chemistry revision notes 

TMS is the acronym for tetramethylsilane, formula Si(CH3)4, whose 13C atoms are arbitrarily given a chemical shift of 0.0 ppm. This is the 'standard' in 13C NMR spectroscopy and all other 13C resonances, called chemical shifts, are measured with respect to the TMS, and depend on the individual (electronic) chemical environment of the 13C atoms in an organic molecule - 1,2-dichloroethane here.

1,2-dichloroethane,  C2H4Cl2,  ClCH2-CH2Cl

The molecular structure and naming of haloalkanes

Interpreting the C-13 NMR spectrum of 1,2-dichloroethane

As you can see from the diagram above there is only one 1H chemical shift line in the C-13 NMR spectrum of 1,2-dichloroethane indicating just 1 chemical environments of the 2 carbon atoms of 1,2-dichloroethane.

ClCH2-CH2Cl

(Note the one colour indicating the single chemical environment of the 2 carbon atoms in 1,2-dichloroethane).

13C chemical shifts (a) only on the C-13 NMR spectrum diagram for 1,2-dichloroethane.

The two carbon atoms are equivalent to each other - identical chemical environments due to the symmetry of the molecule, so only a single 13C NMR chemical shift resonance observed..

The carbon-13 NMR spectra provides direct evidence of just one carbon atom environments for the 2 carbon atoms in the 1,2-dichloroethane molecule, deduced from the presence of only one 13C NMR chemical shift (ppm).

Key words & phrases: C2H4Cl2 CH2ClCH2Cl ClCH2CH2Cl Interpreting the C-13 NMR spectra of 1,2-dichloroethane, C-13 nmr spectrum of 1,2-dichloroethane, understanding the carbon-13 nmr spectrum of 1,2-dichloroethane, explaining the line pattern in the high resolution C-13 nmr spectra of 1,2-dichloroethane, revising the C-13 nmr spectrum of 1,2-dichloroethane, ppm chemical shifts of the C-13 nmr spectrum of 1,2-dichloroethane, how to construct the diagram of the C-13 nmr spectrum of 1,2-dichloroethane, how to analyse the chemical shifts in the carbon-13 NMR spectrum of 1,2-dichloroethane deducing the chemical environment of all the carbon atoms in 1,2-dichloroethane examining the c13 nmr spectrum of  1,2-dichloroethane analysing the 13-c nmr spectrum of 1,2-dichloroethane how do you sketch and interpret the C-13 NMR spectrum of 1,2-dichloroethane interpreting interpretation of the C-13 NMR spectrum of 1,2-dichloroethane assignment of chemical shifts in the 13C NMR spectrum of 1,2-dichloroethane halide chloride chloro functional group How do you interpret the chemical shifts of the C-13 NMR spectrum of 1,2-dichloroethane How to interpret the C-13 NMR spectrum of 1,2-dichloroethane Explanatory diagram of the 13C C-13 carbon-13 NMR spectrum of the  number of different carbon atom environments in the 1,2-dichloroethane molecule from its carbon-13 NMR spectrum to help work out the molecular structure of the 1,2-dichloroethane molecule? The uses and distinctive features of the carbon-13 NMR spectrum of the 1,2-dichloroethane molecule explained. What do the number and values of the chemical shifts from the c-13 carbon-13 NMR spectrum tell us about the 1,2-dichloroethane molecule? explaining the decoupled carbon-13 NMR spectrum of 1,2-dichloroethane  with a detailed interpretation diagram of all the C-13 chemical shifts and intensities

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The infrared spectrum of 1,2-dichloroethane

The mass spectrum of 1,2-dichloroethane

The H-1 NMR spectrum of 1,2-dichloroethane

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