HOME PAGE * KS3 SCIENCES * GCSE BIOLOGY CHEMISTRY PHYSICS * ADVANCED LEVEL CHEMISTRY

SPECTROSCOPY INDEXES  *  All Advanced Organic Chemistry Notes  *  [SEARCH BOX]

Advanced Organic Chemistry: Carbon-13 NMR spectrum of bromoethane

Scroll down and take time to study the content and/or follow links or [Use the website search box]

The Carbon-13 NMR spectrum of bromoethane

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 bromoethane

email doc brown

Use your mobile phone or ipad etc. in 'landscape' mode

This is a BIG website, you need to take time to explore it

C-13 NMR spectroscopy - spectra index

C2H5Br CH3CH2Br C-13 nmr spectrum of bromoethane analysis of chemical shifts ppm interpretation of 13C chemical shifts ppm of bromoethane C13 13-C nmr ethyl bromide 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 - bromoethane here.

Bromoethane  (c) doc b  (c) doc b  (c) doc b  (c) doc b  (c) doc b 

Interpreting the C-13 NMR spectrum of bromoethane

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

CH3CH2Br

(Note the 2 different colours indicating the 2 different chemical environments of the carbon atoms in bromoethane).

Chemical shifts (a) to (b) on the C-13 NMR spectrum diagram for bromoethane.

Note the decreasing effect on the chemical shift as the carbon atom is further from the more electronegative bromine atom of bromoethane.

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


Key words & phrases: C2H5Br CH3CH2Br Interpreting the C-13 NMR spectra of bromoethane, C-13 nmr spectrum of bromoethane, understanding the carbon-13 nmr spectrum of bromoethane, explaining the line pattern in the high resolution C-13 nmr spectra of bromoethane, revising the C-13 nmr spectrum of bromoethane, ppm chemical shifts of the C-13 nmr spectrum of bromoethane, how to construct the diagram of the C-13 nmr spectrum of bromoethane, how to analyse the chemical shifts in the carbon-13 NMR spectrum of bromoethane deducing the chemical environment of all the carbon atoms in bromoethane examining the c13 nmr spectrum of  bromoethane analysing the 13-c nmr spectrum of bromoethane how do you sketch and interpret the C-13 NMR spectrum of bromoethane interpreting interpretation of the C-13 NMR spectrum of bromoethane assignment of chemical shifts in the 13C NMR spectrum of bromoethane ethyl bromide


Links associated with bromoethane

The chemistry of HALOGENOALKANES (haloalkanes) 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

 Doc Brown's Chemistry 

*

TOP OF PAGE