1H proton nmr spectrum of 1,2-dichloroethane C2H4Cl2 CH2ClCH2Cl low/high resolution analysis interpretation of chemical shifts ppm spin spin line splitting H-1 1,2-dichloroethane 1-H nmr explaining spin-spin coupling for line splitting doc brown's advanced organic chemistry revision notes

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

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Interpreting and explaining the H-1 hydrogen-1 (proton) 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 1H NMR spectra of 1,2-dichloroethane [spectra page updated April 3rd 2026 *]

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H-1 proton NMR spectroscopy - spectra index

Introductory note on the 1H NMR spectra of 1,2-dichloroethane

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

The chemical shift δ splitting pattern effects for 1,2-dichloroethane are confined to a proton spin-spin coupling effects analysed using the n+1 rule for adjacent non-equivalent proton fields (n is the number of neighbouring protons in a non-equivalent different chemical environment for the 1,2-dichloroethane molecule).

It is assumed that the integrated intensities of the δ chemical shifts give the ratio of the protons in the different non-equivalent chemical environments of the 1,2-dichloroethane molecule.

The most common solvent used for investigating the 1H NMR spectrum of compounds like 1,2-dichloroethane, is CDCl₃ and other deuterated solvents to avoid confusion with a ¹H NMR signal, ²D (²H) has a different chemical shift.

1H proton nmr spectrum of 1,2-dichloroethane low/high resolution diagrams C2H4Cl2 CH2ClCH2Cl analysis interpretation of chemical shifts ppm spin spin line splitting diagram H1 H-1 nmr for 1,2-dichloroethane explaining spin-spin coupling for line splitting doc brown's advanced organic chemistry revision notes

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

The chemical shifts quoted in ppm on the diagram of the H-1 NMR spectrum of 1,2-dichloroethane represent the peaks of the intensity of the chemical shifts of (which are often groups of split lines at high resolution) AND the relative integrated areas under the peaks gives you the ratio of protons in the different chemical environments of the 1,2-dichloroethane molecule.

1,2-dichloroethane, C₂H₄Cl₂, ClCH₂-CH₂Cl

The molecular structure and naming of haloalkanes

Interpreting the H-1 NMR spectrum of 1,2-dichloroethane

In terms of spin-spin coupling from the possible proton magnetic orientations, for 1,2-dichloroethane I have only considered the interactions of non-equivalent protons on adjacent carbon atoms, but here the two groups of protons are equivalent to each other, no splitting occurs.

The hydrogen atoms (protons) of 1,2-dichloroethane occupy just one chemical environment so that the low/high resolution NMR spectra will show just one H-1 NMR chemical shift observed (diagram above for 1,2-dichloroethane).

ClCH₂-CH₂Cl

Note the one colour of the protons in the single symmetrical chemical environment.

Chemical shifts (a) on the H-1 NMR spectrum diagram for 1,2-dichloroethane.

Chemically equivalent adjacent proton fields do NOT split each others resonances - that is why you just see a singlet proton resonance line and no field splitting effect.

The splitting pattern from proton spin-spin coupling effects is analysed using the n+1 rule for adjacent non-equivalent proton fields (n is the number of neighbouring protons in a non-equivalent different chemical environment) and applied to the ¹H NMR spectrum of 1,2-dichloroethane.

Number of directly adjacent protons ¹H causing splitting	Splitting pattern produced from the n+1 rule on spin-spin coupling and the theoretical ratio of line intensities
0 means no splitting							1
1 creates a doublet						1		1
2 creates a triplet					1		2		1
3 creates a quartet				1		3		3		1
4 creates a quintet			1		4		6		4		1
5 creates a sextet		1		5		10		10		5		1
6 creates a septet	1		6		15		20		15		6		1

Key words & phrases: C2H4Cl2 CH2ClCH2Cl ClCH2CH2Cl Interpreting the proton H-1 NMR spectra of 1,2-dichloroethane, low resolution & high resolution proton nmr spectra of 1,2-dichloroethane, H-1 nmr spectrum of 1,2-dichloroethane, understanding the hydrogen-1 nmr spectrum of 1,2-dichloroethane, explaining the line splitting patterns from spin-spin coupling in the high resolution H-1 nmr spectra of 1,2-dichloroethane, revising the H-1 nmr spectrum of 1,2-dichloroethane, proton nmr of 1,2-dichloroethane, ppm chemical shifts of the H-1 nmr spectrum of 1,2-dichloroethane, explaining and analyzing spin spin line splitting in the H-1 nmr spectrum, how to construct the diagram of the H-1 nmr spectrum of 1,2-dichloroethane, how to work out the number of chemically different protons in the structure of the 1,2-dichloroethane organic molecule, how to analyse the chemical shifts in the hydrogen-1 H-1 proton NMR spectrum of 1,2-dichloroethane using the n+1 rule to explain the spin - spin coupling ine splitting in the proton nmr spectrum of 1,2-dichloroethane deducing the nature of the protons from the chemical shifts ppm in the H-1 nmr spectrum of 1,2-dichloroethane examining the 1H nmr spectrum of 1,2-dichloroethane analysing the 1-H nmr spectrum of 1,2-dichloroethane how do you sketch and interpret the H-1 NMR spectrum of 1,2-dichloroethane interpreting interpretation of the 1H proton spin-spin coupling causing line splitting in the NMR spectrum of 1,2-dichloroethane assignment of chemical shifts in the proton 1H NMR spectrum of 1,2-dichloroethane formula explaining spin-spin coupling for line splitting for 1,2-dichloroethane halide chloride chloro functional group How do you interpret the H-1 NMR spectrum of 1,2-dichloroethane How to interpret the H-1 NMR spectrum of 1,2-dichloroethane Explanatory diagram of the chemical shifts of the 1H H-1 proton NMR spectrum of the 1,2-dichloroethane molecule in terms of its molecular structure. Listing data of all the chemical shift peaks in ppm in the proton NMR spectrum of 1,2-dichloroethane. How to explain the H-1 NMR spectrum of 1,2-dichloroethane. The chemical shifts and integrated values of the proton ratios in the 1-H NMR spectrum of the 1,2-dichloroethane molecule. How to work out the molecular structure of the 1,2-dichloroethane molecule from its proton NMR spectrum. The uses and distinctive features of the proton NMR spectrum of the 1,2-dichloroethane molecule explained. What does the H-1 proton NMR spectrum chemical shifts tell us about the structure and properties of the 1,2-dichloroethane molecule? explaining the spin-spin proton coupling effects in the 1H NMR spectrum of 1,2-dichloroethane. interpretation diagram explaining the proton splitting pattern produced from the n+1 rule and the theoretical ratio of chemical shift δ and values of intensities for the proton NMR spectrum lines of 1,2-dichloroethane

Links associated with 1,2-dichloroethane

The infrared spectrum of 1,2-dichloroethane

The mass spectrum of 1,2-dichloroethane

The C-13 NMR spectrum of 1,2-dichloroethane

The chemistry of HALOGENOALKANES (haloalkanes) revision notes INDEX

H-1 proton NMR spectroscopy index (Please read 8 points at the top of the ¹H NMR index page)

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