S3.2.11 High resolution 1H NMR (HL)

[@saranshsingh5773]

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[@MSJChem]

Glad I can help.

[@XenSolation.]

5:30 I dont understand. Why wouldn't both CH3 peaks be the same size if they have the same number of protons in that chemical environment?

[@rynsacc]

For the ethyl ethanoate example, I cannot find any data about a CH3- having a ppm of 2 on the data booklet. Where can I find these values?

[@MSJChem]

It should have a ppm of around 1 but because of the electronegative oxygen atom it shifts downfield.

[@jaris2532]

For the ethyl ethanoate example, how can you determine that it is ethyl ethanoate and not 2-propanone?

[@MSJChem]

Different number of hydrogen environments

[@MaxUrban-u4x]

Ethyl ethanoate example: according to the data booklet, a chemical shift of 1.3 ppm corresponds to a -CH2R group. Could you please explain why there is a CH3 group at 1.3 ppm (which according to the data booklet corresponds to a chemical shift of 0.9-1.0). I really appreciate any help you can provide.

[@MSJChem]

The presence of an electronegative atom (oxygen) causes the chemical shift to move downfield.

[@monujnath3628]

Plz explain high resolution NMR spectra of 1-chloropropane and 2-chloropropane

[@MSJChem]

1-chloropropane has three different chemical environments that contain protons; the two protons in the CH2Cl group, the two protons in the CH2 group and the three protons in the CH3 group. 2-chloropropane has two different chemical environments that contain protons; the two protons in the CH2Cl group and the six protons in the two CH3 groups.

[@monujnath3628]

Plz explain high resolution NMR spectra of 1 -chloropropane and 2-chloropropane with diagram

[@rugvedpawar7114]

for the IB, do we need to what the peaks would look like if there were carbons and protons on both sides of a central carbon?

[@MSJChem]

Not if it is more than a quartet, no.

[@rosie8094]

Hey, why does ethyl propanoate not have any singlet peaks?

[@MSJChem]

Because there are no adjacent carbons with 0 hydrogens?

[@md.faridulislam6213]

nice..topics......nice explanation...thanks a lot sir

[@kyugreywolf6801]

Great video, thanks!

[@dohanara]

Thank you!

[@outofthebox3653]

Good explanation

[@MSJChem]

Glad I could help.

[@anushichauhan9243]

Tnks sir

[@MSJChem]

You're welcome.

[@sofiasuarez3908]

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[@truman5560]

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[@adityakunwar9324]

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[@ayo3563]

For the ethyl ethanoate example, how can you determine that it is ethyl ethanoate and not 2-butanone?

[@MSJChem]

Number of hydrogen environments.