Advanced Organic Chemistry: Carbon-13 NMR spectrum of 1,2-dioxane

HOME PAGE * SEARCH * GCSE Level Chemistry age ~14-16 * Advanced Level Chemistry age ~16-19

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

[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-dioxane [spectra page updated April 3rd 2026 *]

  email doc brown  Re-edit 13C NMR spectrum of 1,2-dioxane

 Links associated with 1,2-dioxane  *  [privacy policy, cookies and disclaimer]

 This is a BIG chemistry website, PLEASE take time to explore it

 C-13 NMR spectroscopy - spectra index

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

Students and teachers please note that my explanation of the carbon-13 NMR spectrum of 1,2-dioxane 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-dioxane 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-dioxane molecule.

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

13C nmr spectrum of 1,2-dioxane C4H8O2 analysis of chemical shifts ppm interpretation of C-13 chemical shifts ppm of ortho-dioxane 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-dioxane here.

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

As you can see from the diagram above there are 2 different 13C chemical shift lines in the C-13 NMR spectrum of 1,2-dioxane indicating 2 different chemical environments of the 4 carbon atoms of 1,2-dioxane.

13C chemical shifts (a) to (b) on the C-13 NMR spectrum diagram for 1,2-dioxane.

The (a) CH2 carbon atoms are equivalent to each other (nearest the oxygen atoms), and also the (b) CH2 carbon atoms are equivalent to each other (farthest  from the oxygen atoms) because of the symmetry of the 1,2-dioxane ring molecule.

The carbon-13 NMR spectra provides direct evidence of 2 different carbon atom environments for the 4 carbon atoms in the 1,2-dioxane molecule, deduced from the presence of 2 different 13C NMR chemical shifts (ppm).

Key words & phrases: C4H8O2 Interpreting the C-13 NMR spectra of 1,2-dioxane, C-13 nmr spectrum of 1,2-dioxane, understanding the carbon-13 nmr spectrum of 1,2-dioxane, explaining the line pattern in the high resolution C-13 nmr spectra of 1,2-dioxane, revising the C-13 nmr spectrum of 1,2-dioxane, ppm chemical shifts of the C-13 nmr spectrum of 1,2-dioxane, how to construct the diagram of the C-13 nmr spectrum of 1,2-dioxane, how to analyse the chemical shifts in the carbon-13 NMR spectrum of 1,2-dioxane deducing the chemical environment of all the carbon atoms in 1,2-dioxane examining the c13 nmr spectrum of  1,2-dioxane analysing the 13-c nmr spectrum of 1,2-dioxane how do you sketch and interpret the C-13 NMR spectrum of 1,2-dioxane interpreting interpretation of the C-13 NMR spectrum of 1,2-dioxane assignment of chemical shifts in the 13C NMR spectrum of 1,2-dioxane peroxide functional group ortho-dioxane o-dioxane How do you interpret the chemical shifts of the C-13 NMR spectrum of 1,2-dioxane How to interpret the C-13 NMR spectrum of 1,2-dioxane Explanatory diagram of the 13C C-13 carbon-13 NMR spectrum of the  number of different carbon atom environments in the 1,2-dioxane molecule from its carbon-13 NMR spectrum to help work out the molecular structure of the 1,2-dioxane molecule? The uses and distinctive features of the carbon-13 NMR spectrum of the 1,2-dioxane 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-dioxane molecule? explaining the decoupled carbon-13 NMR spectrum of 1,2-dioxane  with a detailed interpretation diagram of all the C-13 chemical shifts and intensities

Links associated with 1,2-dioxane

The infrared spectrum of 1,2-dioxane (a cyclic peroxide), not available?

The infrared spectrum of 1,3-dioxane (a cyclic ether)

The infrared spectrum of 1,4-dioxane (a cyclic ether)

The mass spectrum of 1,2-dioxane (a cyclic peroxide), not available?

The mass spectrum of 1,3-dioxane (a cyclic ether)

The mass spectrum of 1,4-dioxane (a cyclic ether)

The H-1 spectrum of 1,2-dioxane (a cyclic peroxide)

The H-1 spectrum of 1,3-dioxane (a cyclic ether)

The H-1 spectrum of 1,4-dioxane (a cyclic ether)

The C-13 spectrum of 1,2-dioxane (a cyclic peroxide)

The C-13 spectrum of 1,3-dioxane (a cyclic ether)

The C-13 spectrum of 1,4-dioxane (a cyclic ether)

C-13 NMR spectroscopy index

ALL SPECTROSCOPY INDEXES

All Advanced Organic Chemistry Notes

Use My Google search site box

Email doc b: chem55555@hotmail.com

Website content © Dr Phil Brown 2000+. All copyrights reserved on revision notes, images, quizzes, worksheets etc. Copying of Doc Brown's pre-university advanced level chemistry website material is NOT permitted. Exam revision summaries & references to science course specifications are unofficial. These organic chemistry revision notes on spectroscopy (13C NMR spectra of 1,2-dioxane) are suitable for use of pre-university students studying AQA advanced level chemistry, Edexcel advanced level chemistry, OCR advanced level chemistry, IB advanced level chemistry, WJEC (Eduqas) advanced level chemistry, CIE advanced level chemistry, CCEA advanced level chemistry, US grade 11-12 AP honors chemistry courses and they will also prove useful to 1st year undergraduate students of chemistry.

TOP OF PAGE