Identifying nonequivalent protons practice [How to determine the number of signals in HNMR spectra]

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Hello Students, Your Tutor Jake here to help you learn organic chemistry!
How many types of nonequivalent protons are present in each of thefollowing molecules?
a. 2,2-dimethylcyclohexane
b. 1-methoxypropane
c. naphthalene
d. styrene
e. ethyl acrylate
Here we discuss and practice how to identify unique hydrogen signals and how to determine how many signals to expect in your HNMR spectra.
Please contact me at YourTutorJake@gmail.com let me know if you have any questions you'd like me to solve on my channel.
#YourTutorJake

Опубликовано:

11 сен 2024

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Комментарии : 14

@erinleal8878 Год назад

loved the naphthalene example; great video

@AuthenticEducationChannel Месяц назад

Can you tell me the book having these problems?

@jay-vu5ft 2 года назад

Well done

@ishamankotia1373 3 года назад

Thanks ;) that was helpful ❤️

@prathamkhare4703 3 месяца назад

Thank you

@Catsworld267 Год назад

Thank you!!

@hassanacademy14 2 года назад

Well explained ❤️ #hassan4gpat

@zo5893 3 месяца назад

وصلت لعمق اليوتيوب من ورا الادفانس 🤖

@yesimbasak2498 2 года назад

I did not understand why naphthalene has 2 non-equivalent protons. Shouldn't it be 1?

@yesimbasak2498 2 года назад

because of para substitution?

@yourtutorjake8044 2 года назад

If you think about equivalent protons, they need to be in the exact same chemical environment. In the case of naphthalene there are 2, there is one closer to the central connecting bond and one that is further away on the outside of the ring. You can even look at the carbons alpha (directly connected to) the CH bond. you'll notice if you look to either side there is one set that has only CH as neighbors and one that has a CH and one Carbon only connected to other carbons. I hope this helps!

@maxiliarydendrite8926 5 месяцев назад

the magnetic field is different between the two aromatoc rings (less electroneegative) so the two highlighted hydrogens are different due to their proximity to the center. + 4 way symmmetry so only two magnetically different