Advanced Organic Chemistry: Carbon-13 NMR spectrum of cyclohexane C6H12

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

Interpreting the Carbon-13 NMR spectrum of cyclohexane C6H12

Doc Brown's Chemistry Advanced Level Pre-University Chemistry Revision Study Notes for UK IB KS5 A/AS GCE advanced A level organic chemistry students US K12 grade 11 grade 12 organic chemistry courses involving molecular spectroscopy analysing C-13 NMR spectra of cyclohexane

Use your mobile phone in 'landscape' mode?

What next? and links associated with cyclohexane

C-13 NMR spectroscopy - spectra index

C6H12 C-13 nmr spectrum of cyclohexane analysis of chemical shifts ppm interpretation of 13C chemical shifts ppm of cyclohexane 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 shifts, called chemical shifts, depend on the individual (electronic) chemical environment of the 13C atoms in an organic molecule - cyclohexane here.

Cyclohexane, C6H12 , alkanes structure and naming (c) doc b , alkanes structure and naming (c) doc b , all bond angles ~109o

Interpreting the C-13 NMR spectrum of cyclohexane

As you can see from the diagram above there is only one chemical shift lines in the C-13 NMR spectrum of cyclohexane indicating all six carbon atoms are in the same chemical environment.

The cyclohexane molecule is a symmetrical molecule on a time averaged basis, ignoring conformational analysis, hence all 6 carbon atoms inhabit the same electronic chemical environment.

The carbon-13 NMR spectra a provides direct evidence of  a single chemical environment for all six carbon atoms in the cyclohexane molecule, deduced from the presence of just one chemical shift 13C NMR spectral line at 27.1 ppm.


Key words & phrases:C6H12 Interpreting the C-13 NMR spectra of cyclohexane, C-13 nmr spectrum of cyclohexane, understanding the carbon-13 nmr spectrum of cyclohexane, explaining the line pattern in the high resolution C-13 nmr spectra of cyclohexane, revising the C-13 nmr spectrum of cyclohexane, ppm chemical shifts of the C-13 nmr spectrum of cyclohexane, how to construct the diagram of the C-13 nmr spectrum of cyclohexane, how to analyse the chemical shifts in the carbon-13 NMR spectrum of cyclohexane deducing the chemical environment of all the carbon atoms in cyclohexane examining the c13 nmr spectrum of  cyclohexane analysing the 13-c nmr spectrum of cyclohexane how do you sketch and interpret the C-13 NMR spectrum of cyclohexane interpreting interpretation of the C-13 NMR spectrum of cyclohexane 13C NMR spectrum of cyclohexane How do you interpret the chemical shifts of the C-13 NMR spectrum of cyclohexane How to interpret the C-13 NMR spectrum of cyclohexane Explanatory diagram of the 13C C-13 carbon-13 NMR spectrum of the cyclohexane molecule in terms of its molecular structure. Listing data of all the chemical shift peaks in ppm in the carbon-13 NMR spectrum of cyclohexane. How to explain the C-13 NMR spectrum of cyclohexane. How to deduce the number of different carbon atom environments in the cyclohexane molecule from its carbon-13 NMR spectrum to help work out the molecular structure of the cyclohexane molecule? The uses and distinctive features of the carbon-13 NMR spectrum of the cyclohexane molecule explained. What do the number and values of the chemical shifts from the c-13 carbon-13 NMR spectrum tell us about the cyclohexane molecule?


Where next? Links associated with cyclopentane

The H-1 NMR spectrum of cyclohexane

The infrared spectrum of cyclohexane

The mass spectrum of cyclohexane

The chemistry of ALKANES revision notes INDEX

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 query? comment?

TOP OF PAGE and indexes