NMR Spectroscopy
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- เผยแพร่เมื่อ 26 ก.ย. 2024
- What are these things?! All the lines! Splitting? Integration? This is the most confusing thing I've ever seen! OK, take it easy chief. Let Professor Dave take you through the very basics of interpreting NMR spectra.
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Will an electron donating group have an inverse effect on the proton and the chemical shift???@ProfessorDaveExplains
I'm sitting at the University of Washington library and am watching Prof Dave. I look around and see three more computers doing the same. Thank you for saving our lives.
fuck the huskies nerd go cougs
Here I am a year later sitting at the University of Washington library watching Prof Dave explain the same exact concept. The history repeats itself.
@@vkot2292 Chem 238 is killing all of us I guess
Doing the same in the UMass Amherst library right now.
The cycle continues. I also am sat at UW watching Prof Dave. For real, thank you so much. Maybe someday our Ochem professors will learn to teach Ochem.
This 14 minute video was more helpful in me learning about 1H NMR then 5 lectures taught by my prof at uni.
bless up prof dave!!
damn prof. hittin up the ladies ;)
dude I didn't even read your comment before posting but SAME! 5 1 hr lectures and I'm confused as shit. 14 min video and I understand it perfectly.
that what i called proffe...
Saaaaaame
Y’all had 5 lectures just on this? We had one half lecture on it like 2 days ago and my mT is today. 😬
7 years later and this vid is still saving our asses
Professor Dave without you i'd be a potato in Organic Chem. Thank you sir
im still a potato....but im a potato that is passing
Hello! I’m a smarter potato.. still a potato, but can pass a test with professor Dave.
@@taliabrooks1275 lol 😂, me too
@@shellyb5014 hey we are all potatoes. As long as we are all potatoes passing together
kkkkkk funy but u r right
My professor uploaded 120 minutes of lectures about NMR, yet you managed to explain it much better and in a more clear way in just 14 minutes. Thank you Professor Dave 🥺
How'd your tests go?
that's just how it works. you could be a scientific genius but that's not necessarily going to make you any good at teaching
That's because these folks are always like "Now, lets explain this with quantum mechaincs" and start shooting some formulas and differentials around the subject and you're losing half of the point because you don't remember them xD
It's like they're guiding you through some forrest, talking about the great view and flowers and trees around, meanwhile you're standing there, watching all this stuff and wondering, if you're standing on a path
Swear to god I've had 5 lectures of this and i think this is the most complicated shit. Watch your video and I'm not confused at all. Super easy. Heaven sent.
I love how I can put off studying for an exam all the way until the weekend before the test date then just watch some Prof. Dave and get over 90% on the exam. Thanks Prof. Dave :)
professor dave, helping students slack off since 2015!
@@ProfessorDaveExplains❤ luv ya
I was losing train of thought on this, but all of a sudden this clicked in my head, like a virtual lightbulb going off in my head. After years of being lost in confusion by teachers over complicating this; your simple but EFFECTIVE method made me finally get my head around NMR. Thank you!!
That's awesome to hear! By the way, how did your tests end up going?
Finally I understand the chemical shift and I'm from Germany, so the fact that I understand your English explanation better than my German professor speaks for itself haha
I understand what it’s like to struggle with “chemical shift”
Same here and i'm from Germany
omgggg I'm gonna cry. I was literally struggling with this and you just saved me with your crystal clear explanations that my lecturer wasn't able to provide.
Thank you so much and I hope you can continue making these kinds of awesome videos and keep helping out students.
Professor Dave - Saving my ass since gen chem.
and for years to come!
Professor Dave Explains,excellent
I'm a Japanese student learning chemistry in university.
This video is very good for not only learning chemistry, but also listening practice of English.
I’m about to get my masters degree in chemistry, and I still go back to your videos to get some repetition on spectroscopic techniques 🤭
that's me right now! fixing the content that I already know (or am supposed to) and practicing my Organic Chemistry English
I'm a highschool student from Germany who's currently trying to prepare a presentation on nmr spectroscopy. After desperately not undarsting anything properly and searching for videos in German which aren't an hour long I gave up and searched for English videos. Then I found your video and you just saved my whole presentation! Thank you!!!
Professor Dave has just explained 50 pages of my textbook of spectroscopy in less than 10 minutes in the most understandable way. Thank you for your teaching. I was completely lost on NMR spectroscopy.
Other than mixing up the terms downfield and upfield a couple times, this video was very helpful at understanding H NMR and how certain pieces of a molecule will produce certain signals. Good video!
went to the comments to make sure I wasn't going insane! thank you
Got confused by the upfield and downfield but then you fixed it.. Great video thank you professor
Prof Dave is singlehandedly carrying the university level education! Thanks to you, I passed 3 exams, 1 more soon
It's a bit depressing to know I learned more from this short video than I did from the professor I paid 1000's to teach me 😖
Great video! Thank you!
Dave, you're doing important work! I was going to say you probably don't know how much you've helped undergrads get through their courses, but I reckon you probably do know! You're like my "professor-on-call"! Much appreciation 🙏
happy to help, thanks for the support!
Perfect timing for my Organic Chemistry course; thanks Dave!
You be saving lives dude. He the only reason I passed O-Chem with B.
This is GREAT for learning during quarantine! THANK YOU GOOD SIR!
You've explain me NMR Spectroscopy better than anyone! Even though, I'm English is not my first language, it's pure pleasure to learn with you :)
Zuzanna Pawlukowicz ... hey by the way you are damm cute 😅😅
HOLY CRAP!!! Ive been sitting here for HOURS trying to figure out what I was doing wrong, reading and re-reading and you just solved my problem at the 11:19 marker. I had that "lightbulb" moment. This was awesome, thank you!!
You have an astonishing gift of breaking a complex subject into easily understandable smaller chunks!
"down field = DESHIELDED" upfield is opposite
Thanks for agreeing
You're the best Prof!
I got DAT (Dental Admission Test) coming up in January and your videos are helping TONS :D
good luck!!!
did bruh get into dental school
Do dentists have to know about this for X-Ray purposes or just for Organic Chemistry purposes
@@justustownsend4150 hey brother, 2 years later response but I got into dental school last year
Sal G Congrats man!
Am I the only person who gets so happy when I search an OChem topic and find a Professor Dave option, never lets me down
facts^^^^^
i know you get these comments a lot, but your explanations are extremely clear compared to the lectures i sat through. you always contextualize it in a way i can understand by keeping it simple without removing all the important information. it really helps me get the basic idea of what's going on so i can better understand the nitty-gritty details my professor tries to tell me. you're an amazing teacher, and your impact on chemistry students is astounding
Dave, I would simply be lost without you.
U r really helping me a lot sir. Seriously why people give those dislikes in ur videos??? Those are so many dislikes in such a good helpful video. Why??? I really don't understand this!!
they are just mean stupid heads! tell all your friends to subscribe and that will make it all better :)
I will love to do that bro.
Those are just jealous chemistry teachers who can't teach as good as Prof Dave XD
i agree with you
I've been watching your videos since high school and now I'm watching them while in college, thank you for all you do!!
9:10, there's a little mix up between upfield and downfield. Otherwise, great explanation and clear examples.
Thanks Prof. Dave. Nobody could ever understand this and everyone’s struggling with this subject in my class, the lecturer also refuses to answer questions so thanks a million.
I'm so glad I found Dave's videos back in high school, now I'm at second year at uni and still find them to be so helpful
A 10-15 lecture video of you is weigh better than a week worth of most school professor's lecture.Thanks a lot prof Dave & keep it up !!
YOU ARE THE BEST!!!! I'm a student from the U.K Studying A level chem!
with you i donot agree
maybe next time
blanakompe
I've been watching lots of videos, but your reverse way of looking at it helped a lot :)
God bless you, Professor Dave.
it's crazy how helpful this guy's videos are
He does know lot about science stuff, Professor Dave Explains. Thank you again
I am watching your video from the Missouri S&T chemistry dept. Tomorrow is my mid sem exam on analytical chemistry. Your video has boosted my sense on NMR. Thank you Prof.
In the horse-and-buggy days of NMR, I was the NMR operator/maitainer (because of my electronics training. I had a very poor understanding of biochem). We had a Jeol C-60 unit, a Japanese import having hybrid vacuum-tube and solid-state electronics.
It used an electric field magnet with a "superstabilizer" to minimize fluctuations in the field strength. The magnet was cooled with refrigerated deionized QDW. It could perform both frequency and field-sweep spectra. The purpose was to aid our biochem department in analyzing the structure of DNA with an eye toward cancer research.
Lyons-Kettering Research Center at the University of Alabama at Birmingham in the late 60's/early 70s.
I left because I was a "fish out of water": The only employee there without at least a Master's.
You do not know how many videos I tried to explain NMR. Yours made it click, thank you!!!
seriously this video really helps me to understand the NMR technique in less than an hour. I wish my lecturer explain the concept like this. thanks so much, professor Dave!
7yrs later, and still a lifesaver
At first I did not understand the explanation completely but once you did the problems it made TOTAL SENSE THANK YOU SO MUCH
Man you know how to explain things ! My organic chemistry prof was a very bright mind but he couldn’t be bothered really explaining something to us newbies without it flying over our heads.
professor dave! thank you so much! i have a major exam tmro and you saved my life!
this 14-minute video alone taught me more about NMR than my "professor" did in 2 hours.
Literally the goat... like why can't a university charging 80 racks teach as good as him?
Great video! recommending it to my colleagues. Thank you.
Your videos have helped me in so many ways! I am in the middle of my teaching degree and became lost in Physics class. Your videos have certainly pulled me through and also provided some exceptional tips on how how to teach clearly! Thank you Professor Dave!
Sir, I'm having an exam in bioanalytics tomorrow and - please don't let me jinx it - you are probably saving my butt. Thank you so much!
I have been studying this for about a month and no matter how hard I tried I could not understand NMR but this video helps me understand instantly. Thank you!!!!
the way you demonstrated.................just awesome. hats off, sir..............................
After hours of trying to understand nmr using chatgpt this video is a blessing.
this is pretty amazing. thank you!
Thanks mate, helped me in yr 12 chemistry. Course doesn't go this in-depth but i needed the background for the n+1 rule to make sense. Great video, you teach well :)
All the best for your upcoming exam! :)
Nick Turner Thanks mate
Did you pass?
@@dwtrowe yeah man, got a 42/50 scaled up was 46, was the best result of all my classes.
Perfect timing for my Chemistry test, thank you Dave!
This video is the best! Thank you so much Professor Dave. You have been saving my life since gen chem days
Jesus is back to save me
Thank you proff ,
I hated NMR as a unit but you have made it easier for me.
May you live for over 100 years to help more generations .
that's an old dave
seriously, thank you. You made this topic easier to understand and less intimidating
Now only I understood the lesson. Thank you so much professor!!! YOU ARE A LIFE SAVER! my exams on Monday and I was SO NERVOUS coz I keep getting it wrong in every paper. I'm going to try to do the questions with this knowledge now. I'll be back! Thank youuuu
I would add to earlier comments that it's also useful to watch videos like these when you already have studied well for exam, to brush up one's knowledge in a more lively way and also to deepen one's earlier knowledge. I learned now first time to understand why different hydrogens in certain functional groups have such peaks they have. God bless you and many thanks.
I can't believe i understand the ideas behind the spectrum better after this 15minute video than the last 4hours of lectures in uni...
You helped me answer my prelab question about whether p-xylene or a cyclohexane would have more peaks on the NMR spectroscopy! Thank you Dave
Professor Dave,You're so appreciated for this helpful video,I'm so grateful for it,for sure It arose something in me .thanks a bunch Dave.
Hey Dave, amazing explanation. I love the simple and straightforward way you put it. You'll surely be extremely helpful throughout my Master's Degree. Thanks dude, honestly. Of course I subscribe.
You going through each individual step helps so much...def saved me on my organic chem exam, ty!
this helped me understand better analyzation via nmr, i recommend also watching the organic chemistry tutor's video on shielding and deshielding if this video is still hard to understand.
Great explanation of the basics, apart from the mix-up of down-/upfield (which I can totally relate to, haha)
My professor took two hours explaining this and I understood it better in these 15mins. Now I won’t fail my test, thanks! 😂
Great intro to NMR! Watching this to prepare for my lecture. Thank you Professor Dave! 🙏
This was a better explanation compared to reading about it. Thank you!
Really nice video! Thanks for the awesome content. Though I'm still wondering why I need to know this stuff as a medical student... at least it's kinda interesting.
This is the one topic I cant get comfortable with in o. chem. As others said, you broke it down very nicely. Great intro before I delve in more. Thank you for this.
been lost ,till i found this video, thank you so much, much appreciated from South Africa
You're awesome. I spent 4 hours reading this chapter and you explained it better in 14 minutes...
Thank you!!
Thank you , I finally understood.
This is my fav prof Dave content. Keepin it classy.
Inused to follow your lectures back in High school. And now as I am in college i still find them really useful. The coverage of topics is amazing 🖤
Love from India (NIT Warangal)
OMG!!!!!!!! this was the BEST explanation. Hats off...
Halfway through the video and my brain got bigger. Thanks Dr. Dan!
YOU ARE A LEGEND LIKE MY GOD HOW DO U TEACH SO WELL. MY UNI SPENT LIKE 6 HOURS EXPLAINING NMR AND NOTHING MADE SENSE MY GOD.
Need to realize that you are my lecturer now , somehow , you help me a lot in chemistry. Thank you Profesor Dave
I have NMR class today and this is very helpful!
This is an excellent video - so well structured, easy to follow, and well-explained. Thank you sir! Extremely helpful with my exams coming up!
I didn't know Dave Grohl taught chemistry
Wow, this video was everything I needed to understand this concept. Thank you SO SO much, professor Dave! Your videos are seriously the best.
WHERE HAVE YOU BEEN ALL MY LIFE?? LOL. GREAT VIDEO. THANK YOU
I finally have an idea of the basics on NMR. Thanks for this.
You're super fantastic. Literally wonderful. Without your videos my life would get difficult. Thank you sooooooooooooooooooooooooooooooooooo much
Thanks that was of great help. I could not understand this topic in class but this video really cleared a lot of concepts. Thank you very much.
Very much helpful for my quality control class. Thank you! 😊
Man you're saving lives, thanks....
thanks david your lecture was really helpful
from who major in chemistry