Question.... at 8:30, you mentioned that the protons in 1,2-dichloroethane are chemically equivalent - therefore, the neighboring protons do not result in spin-spin splitting (1 signal). You also mentioned that the neighboring protons in 2,3-dimethylbutane result in splitting, which I understand that each proton in this compound experience induced magnetic fields from each other, causing the signal split. Why can't this be the same case for the protons in the earlier compound? Did I miss something here? Please explain. Again, thanks so much for your wonderful and clear presentations! :)
TrueCourse chemically equivalent protons experience the same applied magnetic field and absorb the same frequency and that is why they should appear as same signal. In dichloroethane, all 4 protons are chemically equivalent or identical and so all absorb at the same frequency.
Thank you for these videos, they helped out alot. One question: why do we only look at the neighboring protons? for example couldnt one of the red protons in the 2nd example add or subtract from the effective magnetic field felt by the other? Thanks in advance.
Great vid as always but I have one question: In 0:20 it’s been said that the n+1 rule applies only in equivalent proton but in 8:30 it’s been mentioned that equivalent ones do not show splitting. Can anyone please explain that part because it’s really confusing
Yeah, that sentence from 0:00 to 2:40 sensitively in the right top corner, the (equivalent) between parentheses is misleading/confusing me cause it's like it's restricting the n + 1 rule to be applied only with neighbouring protons that are equivalent, which isn't the case in the ring protons since they're experiencing different environments, which caused them to be splitted. Therefore, they aren't equivalent neighbours to each other! Did the author of the video forgot to include the n + 1 rule also with non equivalent neighbour protons or what? If so, then some of the exercises shown here including with the protons in the ring were wrongly shown! Am i the only one who's catching this up besides with Jonathan Benitez and the two persons who like his comment assuming they know what's going on?..
The surrounding atoms are different, like for example; CH3 has three protons attached to the carbon, they are called "equivalent protons" as they share the same environment duo to attachment to the same carbon and thus same sequence of attached atoms after the carbon
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Thanks for this series of video. It was really helpful. Khan academy rocks!!!
I always hear that someone say something rocks. What does this rocks mean?
Question.... at 8:30, you mentioned that the protons in 1,2-dichloroethane are chemically equivalent - therefore, the neighboring protons do not result in spin-spin splitting (1 signal). You also mentioned that the neighboring protons in 2,3-dimethylbutane result in splitting, which I understand that each proton in this compound experience induced magnetic fields from each other, causing the signal split. Why can't this be the same case for the protons in the earlier compound? Did I miss something here? Please explain. Again, thanks so much for your wonderful and clear presentations! :)
TrueCourse chemically equivalent protons experience the same applied magnetic field and absorb the same frequency and that is why they should appear as same signal. In dichloroethane, all 4 protons are chemically equivalent or identical and so all absorb at the same frequency.
Did you ever end up figuring this out?
Thank you for these videos, they helped out alot. One question: why do we only look at the neighboring protons? for example couldnt one of the red protons in the 2nd example add or subtract from the effective magnetic field felt by the other?
Thanks in advance.
Series of Videos helped me a lot. Also the presentation is really good to understand.
Great vid as always but I have one question: In 0:20 it’s been said that the n+1 rule applies only in equivalent proton but in 8:30 it’s been mentioned that equivalent ones do not show splitting. Can anyone please explain that part because it’s really confusing
Thanks for this video. It really helped.
Thank you! you just saved my life!
100x better than the Rutgers chem department
Good one...thanks
Brilliant
nice...!!
The protons on the ring aren't equivalent.
Yeah, that sentence from 0:00 to 2:40 sensitively in the right top corner, the (equivalent) between parentheses is misleading/confusing me cause it's like it's restricting the n + 1 rule to be applied only with neighbouring protons that are equivalent, which isn't the case in the ring protons since they're experiencing different environments, which caused them to be splitted. Therefore, they aren't equivalent neighbours to each other! Did the author of the video forgot to include the n + 1 rule also with non equivalent neighbour protons or what? If so, then some of the exercises shown here including with the protons in the ring were wrongly shown! Am i the only one who's catching this up besides with Jonathan Benitez and the two persons who like his comment assuming they know what's going on?..
What do you mean by "a different environment"?
The surrounding atoms are different, like for example; CH3 has three protons attached to the carbon, they are called "equivalent protons" as they share the same environment duo to attachment to the same carbon and thus same sequence of attached atoms after the carbon
''Hey neighbor!How many protons have you got?I need to know if you are splitting me!! :P Thanx guys!
u are best sorry great
I cannot hear a word you said.