Takes you 11:30 minutes to explain the basics of NMR in a way that I understood compare to 3 hours in class. Your explanations are always so clear. THANK YOU!
I have just started a biochem graduate program and I'm learning about NMR. I have been off school since 2007, working with biology for the most part. Your channel is a life saver for me. Thanks a million times...
Thank you for explaining this. Orgo I was pretty easy, but now I’m starting Orgo II and NMR seems completely out of left field. This explains it much clearer!!!
The explanation of analyzing the NMR spectrum is simply great. I feel difficult to solve the NMR spectrum but now I understand the secretes of the NMR spectrum. Thank you friend....
I have learnt more about NMR in 11minutes than I have in an entire semester of lectures... Your explanations are excellent and clear, my lecturer doubts i will pass my exam since shes better at picking on my mistakes than actually helping, however this has given me determination and more confidence to prove her wrong. Thank you :)
I'm a high school student who's mark rides on my ability to analyse this. Thank you so much for explaining it so well. I'm going to go get that A now. XD
You are adorable. Its been a long time since any chemistry video which is zero boring but exciting with cool HAT tricks. Gonna check your other videos too. Anyway thanks Leah :)
Leah, at around the five-minute mark when discussing calculating the number of neighbors based on the number of peaks you see, you said at one point that subtracting one from the number of peaks equals the number of types of neighbors to the hydrogen of interest in the molecule. Did you misspeak? I just want to be sure I understood you correctly
Thanks for the recommendation. I post free videos as I have time and am always looking for suggestions. For more help with this topic in the meantime, contact me through my website: leah4sci.com/contact
Ha, no I'm in O chem 1 if you can believe it! In our syllabus, we skip from chapter 5 (radicals , carbanions / cations), to chapter 12 and 13 ( IR, EM, NMR spec).
at 3:21 the top two yellow protons are not equivalent. there is a chiral carbon at the connection to the methyl. thats why the 2 yellow protons are diastereotype protons. one is above and one below the ring. they are not equivalent. There are six types of different protons in this molecule.
@@Leah4sci your right... though i am still quite sure not all yellow protons are eauivalent. 2 face the methyl side of the ring while two are at the H side.
They 2 pairs of diastereotope protons. Substitution will lead to a diastereomer, as then the front c becomes chiral.Dont get me wrong, your video is great, but this first example is definately wrong. You could just get simulated spectrum from Chemdraw to check im right. Still love your content. Important to get more people to love chemistry. :D
It depends on the integral of the signal which is usually given or, if you evaluate a measured spectrum yourself (e.g. with the program MestreNova) the integrals of the signals can be ascertained manually.
It was an interesting experience for me, 10 years ago when I was pursuing my MSc in Biotechnology. However, I have now shifted my career to education and I am currently doing my PhD in Education. I have moved from the field of Science to Social Science, but it's amazing how quickly time passes by!
First, the amount of hydrogens (3H and 2H) for any one signal is information that must be given to us by the instrument itself. That information comes from an integration of the area under the peaks. The number of neighbors is information that comes from the splitting of the peaks. Splitting follows the “n+1” rule, as I explain earlier in the video. The peaks split by one more than their number of neighboring hydrogens.
I'm sorry, but I don't offer tutoring over social media . For help with questions like this and more, I recommend joining the organic chemistry study hall. Details: leah4sci.com/join or contact me through my website leah4sci.com/contact/
Takes you 11:30 minutes to explain the basics of NMR in a way that I understood compare to 3 hours in class. Your explanations are always so clear. THANK YOU!
same here
same here😊
same here
Right!!! She explained something in 11 minutes that my professor spend 4 separate lecture on.... and I understand it better from Leah
You're very welcome! I'm so happy to clear things up for you!
I have just started a biochem graduate program and I'm learning about NMR. I have been off school since 2007, working with biology for the most part. Your channel is a life saver for me. Thanks a million times...
It's a Master in Biochemistry, and one of my first classes is Organic Spectroscopy.
@@veronicabenites3177 hows it going
You're very welcome, so happy I could help!
Wish people like you were getting my tuition money haha..
lol, happy to help!
Thank you, thank you, thank you! I have a midterm this week that I didn't feel prepared for at all, until i started watching your videos. awesome.
You're very welcome!
I learn more in 15 minutes of your videos than I do in 2 semesters worth of lectures... I’d rather pay you over my tuition 😂
:D you're funny! but thank you Leslie! All the best! :)
Thank you for explaining this. Orgo I was pretty easy, but now I’m starting Orgo II and NMR seems completely out of left field. This explains it much clearer!!!
So happy to help you understand!
This is probably the easiest NMR tutorial I've ever seen. Thank you.
You're so very welcome!
you're great since it was uploaded in 2013 me as a student can still benefit from your work. Thank you.
Glad I could help!
If Leah Fisch was my lecturer I would never ever miss a Spectroscopy class.
Lovely video.
Happy to share and help!
I can’t believe you summed this up so well in 11 minutes while others took 3 hours and weren’t able to teach it correctly
So happy to help you understand!
The explanation of analyzing the NMR spectrum is simply great. I feel difficult to solve the NMR spectrum but now I understand the secretes of the NMR spectrum. Thank you friend....
You're very welcome, happy to clear it up for you!
dammmmmmmmmmmmmm!!!Thank you Leah Fisch. I will nail that exam.Yes!!!
You're very welcome!
Thank you so much Leah! I have my exam tomorrow and this video helped a lot. :)
You're very welcome!
Oh my god this is magic. I was thought I was going to lose my A in Ochem all because of these damn NMR readings.
Fact. Those readings are too confusing.
So happy to help!
so who's cramming for finals rn am i right
yo sameeeeeeeeee bless up fam
llDietryingll 🤗
Bless you. :)
you are right lol
2019 Here We Go
you are a very talented lecturer Leah Fisch. Thanks for this channel, it will be useful to me in the future.Now i get all of it.
You're very welcome! Thanks for your kind words!
Bump this vid; it's the best applicable explanation for those of us in a typical second semester organic.
thanks!
Amazing, amazing, AMAZING video! You make it so easy to understand! Absolutely the best video on NMR!! Thank you!!!!!
You're very welcome, thanks for your kind words!
your way of describing the concepts is very nice. i'd like to watch your other lectures too.
Glad you liked it!
i like your set up, very good. the colors made it very easy to understand. great great video.
Glad you liked it!
God bless you for uploading this series.
You're very welcome!
This is GREAT! Good overview without the technical detail! 😊
So glad that it explained things clearly for you!
Thanks Leah! It's helping me prepare for a medical entrance exam
You're so welcome, happy to help!
You are so great in teaching . I really admire the lecture
Happy to help!
I swear I've watched this video over 20 times my last years of college, NMR never seems to go away
Thank you for following :)
Final exam tommorow, HAd organic chem fininshed in 18 days. this video really help meto get an idea. One of the question will be base on this concept
Happy to help!
YOU ARE AMAZING. Thank you so much for making this video!! It helped SO much!
Aww thanks, and you're very welcome!
You are amazing
You saved 3 houres om me
Thank you
Glad I could help!
You're the best! Everything was so clear and precise! Thank you :)
You're very welcome!
Good work Leah. This is "more exciting."
Thank you, hope you found the mnemonic helpful
OH MY GOD THANK YOU LEAH! :') i was depressed cuz of NMR but now i get it
You're very welcome!!!
This helped out so much for NMR analysis. Thank you
Pre med. Orgo is part of core classes
You're very welcome!
concise and coherent, extremely helpful!
thank you Madam! :D
Happy to help!
I have learnt more about NMR in 11minutes than I have in an entire semester of lectures... Your explanations are excellent and clear, my lecturer doubts i will pass my exam since shes better at picking on my mistakes than actually helping, however this has given me determination and more confidence to prove her wrong. Thank you :)
Did u pass we must know
Happy to help clear things up for you!
You rock my world Leah.
Glad I can help!
I'm a high school student who's mark rides on my ability to analyse this. Thank you so much for explaining it so well. I'm going to go get that A now. XD
you're very welcome!
Thanks Leah!! Ill hopefully get a good grade this sem because of you
You're very welcome, happy to help!
Funny how the way you speak was a big reason why I kept on watching! It's just a matter of taste! Thanks for the video!
You're very welcome!
Thank you, I dont have a chemistry background. But this helped me, I have to study more on it for my research
You're welcome, happy to help!
9:44 did you mean to say deshield the hydrogens causing them to shift left?
Yes, thank you for pointing that out. Electronegative groups pull electron density towards themselves and deshield the surrounding protons.
U helped me a lot.....thanx btw!!!
Happy to help!
These videos are clear and cool
Glad you enjoy them!
Wow this is just a banger of a video !
Glad you like it!
You are adorable. Its been a long time since any chemistry video which is zero boring but exciting with cool HAT tricks. Gonna check your other videos too. Anyway thanks Leah :)
Happy to share!!!
Thank you! You helped me understand what 2 semesters of analytics could NOT do. You are a saver!
Oh wow, you're very welcome
good to start from here!
happy to help!
You just made everything make sense!!! Thank you!
Yay! you're so welcome
Your work is amazing!!! Thanks a lot!!!
You're so very welcome!
I would give two thumbs up, if I could! Thank you a lot!
You're so welcome!
Leah, at around the five-minute mark when discussing calculating the number of neighbors based on the number of peaks you see, you said at one point that subtracting one from the number of peaks equals the number of types of neighbors to the hydrogen of interest in the molecule. Did you misspeak? I just want to be sure I understood you correctly
peaks = n + 1 so you subtract 1 for the total # of neighbors.
Really thankful for yr video,it makes me understand more
Happy to help!
Hey you're really good. I would appreciate you to upload more videos.
Can you please upload a video on NQR spectroscopy?
Thanks for the recommendation. I post free videos as I have time and am always looking for suggestions. For more help with this topic in the meantime, contact me through my website: leah4sci.com/contact
@@Leah4sci sure will do
this is really helpful, thanks!
You're very welcome!
YOU ARE BRILLIANT
THANK YOU SO MUCH
You're very welcome!
Wow great.... Need your help bfr my exam......
Happy to help!
Thank you, thank you, thank you, thank you, thank you, thank you!
Ha, no I'm in O chem 1 if you can believe it! In our syllabus, we skip from chapter 5 (radicals , carbanions / cations), to chapter 12 and 13 ( IR, EM, NMR spec).
Sam Houston State University. Huntsville, TX.
I just got through with the quiz over this material, my proff looked over my material and gave me 'the nod'. I give you the credit! Thanks so much!
You are welcome, welcome, welcome, welcome! :)
grt work..... gr8 help...ty vry much. .like ur videos..vry much...fantastic
Glad you're finding these helpful
Beautiful explanation👍🏻
Glad you enjoyed it
at 3:21 the top two yellow protons are not equivalent. there is a chiral carbon at the connection to the methyl. thats why the 2 yellow protons are diastereotype protons. one is above and one below the ring. they are not equivalent. There are six types of different protons in this molecule.
There is not a single chiral carbon on this molecule
@@Leah4sci your right... though i am still quite sure not all yellow protons are eauivalent. 2 face the methyl side of the ring while two are at the H side.
They 2 pairs of diastereotope protons. Substitution will lead to a diastereomer, as then the front c becomes chiral.Dont get me wrong, your video is great, but this first example is definately wrong. You could just get simulated spectrum from Chemdraw to check im right.
Still love your content. Important to get more people to love chemistry. :D
you are a lifesaver. Thank you!
You are so welcome!
Thank you so much!! :) It was very well explained!
You're very welcome!
thank you mam. NMR become easy for me .
I'm glad I was able to help!
My lecturer couldn't make me understand this in past two weeks in total of 6 hour classes, you explained it in two videos lol
Glad I could help!
Good explanation
Thanks
you helped me so much! thank you so much for your video
You're so welcome, I'm happy to help!
at 6:55, do you have to be told how many hydrogens are represented by this or is there a way to figure it out?
It depends on the integral of the signal which is usually given or, if you evaluate a measured spectrum yourself (e.g. with the program MestreNova) the integrals of the signals can be ascertained manually.
Thank you very much that's more than exellant represintation
You're so welcome!
i hope youre my professor.
Thanks, but I'm going to stick to teaching online :)
Very helpful indeed, I'm extremely appreciated.
You're very welcome!
It was an interesting experience for me, 10 years ago when I was pursuing my MSc in Biotechnology. However, I have now shifted my career to education and I am currently doing my PhD in Education. I have moved from the field of Science to Social Science, but it's amazing how quickly time passes by!
Damn girl! Thank you so much for this helpful video!
You're very welcome. Always glad to help!
Thank you. Excellent.
you're so welcome
Thank you soooo much! You explain it clearly in the simple way, it's easy to understand :)
You're so welcome, happy to help!
You are a really awesome teacher! Thank you so much for your videos.
Thanks for your kind words! You are very welcome
Nice one for the chemistry help!! :)
Happy to help!
I am a bit confused at around 7:20 where you got 2 neighbors for 3H and 3 neighbors for 2H
First, the amount of hydrogens (3H and 2H) for any one signal is information that must be given to us by the instrument itself. That information comes from an integration of the area under the peaks. The number of neighbors is information that comes from the splitting of the peaks. Splitting follows the “n+1” rule, as I explain earlier in the video. The peaks split by one more than their number of neighboring hydrogens.
Concise, nice video.👍
Glad you liked it!
Very helpfull to me thanks
happy to help
It was very helpful
Happy to help!
Thanks, I appreciated the help.
You are very welcome
Hello Leah,
Quick question:
What would be the splitting in ethane?
1 Singlet peak
Since there are six identical hydrogen atoms, there will be no splitting just one singlet for six hydrogens
Amazing... thank you so much!
You're very welcome
thank you so much!! really helpful
You're very welcome, happy to help!
good video, your voice reminds me of the portal game. :)
Glad you like it!
Thank you it's helpful
Glad I could help!
Mam you are amazing
Thanks a lot!
I feel more convident with these videos.
Awesome!
Can you work at my university please omg... I understood this so quick!!!!
Lol glad it helped! Why should I teach there when my videos are accessible to so many more people through TH-cam?
Another great video
LETSGOOOOOOOOO
Thanks again!
Very helpful
Glad to hear that!
Super helpful. However, my instructor would fail you if she heard you call it a machine instead of an instrument 😂😂
ooof! I'm glad I don't have your insructor!
thank you thank you thank you
You are very welcome!
this might be a dumb question, but is NMR the same as 1H MRI?
As long as it's proton or hydrogen nmr
Not a dumb question at all, the two types of NMR typically covered at the undergraduate level are H-NMR and C-NMR
damn it...i wish i had this when i took organic...thanks leah!
You're very welcome!
thank you very much!
you're so welcome!
thank you so much
You're very welcome!
You've saved my arse, holy shit I finally get it, thank you!
You're very welcome!
thank u! this helped me sooo much :D :D
You're very welcome!
her voice gives me ASMR I can't be the only one
Thanks?
thank you so much!
It helped a lot :))
You're very welcome, happy to help!
what does the bold part mean in my H NMR problem: δ7.37 (d, J=1.6 Hz)?
(d, J=1.6 Hz)
I'm sorry, but I don't offer tutoring over social media . For help with questions like this and more, I recommend joining the organic chemistry study hall. Details: leah4sci.com/join or contact me through my website leah4sci.com/contact/