Organic Chemistry PDF Worksheets: www.video-tutor.net/orgo-chem.html Full-Length Exams and Worksheets: www.patreon.com/MathScienceTutor/collections

Hi there @theorganicchemistrytutor, I'm sure you get this very often however I would like to congratulate you on your devotion to helping people like myself fundamentally understand algebra and chemistry. You cover a wide range of things I'm interested in and I am very thankful for your free lessons. You are one of the great channels out there that allow people to harness the power of self teaching, for free.

@idk-jw2jn

5 жыл бұрын

aww

There are no words to express how thankful I am for your devotion and hard work that have helped us (students) to understand difficult concepts from just watching your lessons. Gold bless your soul.

You are a legend to chemistry students around! I really don't know what I'd do without your videos that help immensely. My professor decides to teach this half ass and expect us to know it 100% for the exam.

When someone actually explains this stuff, it's not that bad. Thanks man!

Dude, you are better than khan academy and the handsome beard dude at teaching organic chem. Well for me atleast, keep it up bro

@captainoaoaoa6908

3 жыл бұрын

the handsome beard dude.. Do u mean professor Dave?

@sparky844

3 жыл бұрын

@@captainoaoaoa6908 Ooooh he knows alot about the science stuffff~~~

@Exhalted1

3 жыл бұрын

Eliott rintoul is also up there for chemistry

@yabombo8145

2 жыл бұрын

@@Exhalted1 if you're an a level student especially

@asilsakka3173

2 жыл бұрын

@@sparky844 professor dave explains

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i STRUGGLED with this in ochem 1 and within an hour you've helped me understand it in ochem 2!! thank you!!!!

You're a legend. Thankyou for being the reason im passing this class!

hi your explanation is amazingly easy to understand and the enormous amount of examples u furnish to understand the concept with a detailed mechanistic approach is invaluable

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I took me just 1 night to go through each example you've used above to understand a 7 lesson Graduate NMR Class! May God bless you!

im starting to undertand this after a week lmao thank you. I was feeling so lost and i cant even make a meeting with my professor cause i have severe social anxieaty :( so you literally just saved me

Christ, this was so obvious I feel dumb! Killin' myself to figure out NMR and how to properly analyse the spectra, but I feel confident now, hopefully the exam will go fine! You've definitely helped me, you're a great tutor. Keep up the good work!

this is pure gold. Thank you so much. I would love to show you my appreciation in reallife too because you make me smile from the bottom of my heart

I can not thank you enough for everything you've taught me God bless you

Thank you so much, I went through all the spectroscopy videos and I think I get it now.

Thank you so much for this video. The topics are explained in such a concise and clear way. Watching your videos has helped me appreciate the beauty of chemistry, I'm planning on rocking a JG hoodie when I ace my Orgo class!

Respected Sir You explained everything so systematically..... Wonderful job.... Thank you so much. 🙏🙏🙏

I flunked my chem classes because my teacher didn't know how to teach. I did find a couple of tutors that got me to understand and went on to get a great job and helped others thru rough times in Math & chem.

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Wow, this video is incredibly informative and detailed. The explanation of carbon-13 NMR spectroscopy is clear and concise, covering everything from the basics of broadband decoupled C-NMR to DEPT C-13 NMR spectroscopy. The examples provided, such as 2-butanol and 2-methylbutane, really help to illustrate how to assign chemical shifts to different carbons given the C-13 NMR spectrum. I especially appreciated the discussion on how to propose a structure given the molecule and using factors such as IHD and the number of signals present in the spectrum. The video also does a great job of explaining the different chemical shifts of functional groups, including alkyl groups, halogens, amines, alkenes, alkynes, ethers, alcohols, benzene rings, aldehydes, ketones, esters, and carboxylic acids. The score system for ranking the chemical shifts of sp3 carbon atoms is also very useful. Overall, this video is a must-watch for anyone studying organic chemistry

I just love it..... Thank you so much for your heard work behind this masterpiece.... God bless you

Thank you for providing comedic relief by choosing to place a peak at 69 when you could have easily moved it.

Thank you so much I can't express words to say you thanks. Very very good way of teaching

Thank you so much sir your explanation makes complex problems to lowest level and to be truth even lower primary students (grade 3) can understand it, what a great gifted from our God lord,, thanks my brother God bless you,, keep up the good work

You should open a college. College today ranked by how much research they have, how successful students graduate there are, but they really has problem on how good they teaching.

RESPECT!!!! Thanks man! You nailed it as always

Many thanks for your edifying lectures on chemistry

Very helpful and made the concepts very clear and easy to understand. I would like to note, however, that the integration (peak height) of the C13 peaks is the result of the number of protons on the carbon not the number of equivalent carbons.

Seriously, I attented a whole semester of lectures about nmr spectroscopy (held by a physicist, considered the best of his field) and I did not understand a single thing. After watching this video I am pretty sure I will get through the exam.

Thanks for the clear explanation!! It helps alot!!

I just finished the 1hr and half lecture or tutorial, thank you so much!!!! The video is so amazing, I really appreciate your sharing! and I am so obsessing about your voice :D

i am a chemistry student from Marburg university Germany. i really 100 percent appreciate the effort u use to bring such an understanding video. i may have wasted money in buying books but u are indeed a great Tutor. thanks

Thank you .thank you soo much for this...first time I understand to the best level..

I would like to thank you so so much your videos makes me get an A in my Spectroscopy exams

This is so very thorough

Thank you so much sir for the detailed video .. stay blessed ✨

All your videos are fantastic, thanks for your help. Can you make a review video for the ACS Organic Chemistry I and II exam?

You’ve helped me a great deal in General Chem 1/2 and Organic Chem 1/2. I was wondering if you can cover Med. Chem? I’m going to Pharmacy School soon thanks too you. So i know i’ll need some help lol.

@Annie-it1cw

4 жыл бұрын

I'm a Pharm.D student and I'm using his videos!

@wisehead1830

2 жыл бұрын

This so funny to me cause you should learn Med.Chem at Pharmacy School but instead you have to come here for some real help. All the best in Pharmacy School

It is more than helpful. Thank you

This taught me more about 13C NMR than 4 years of high school chemistry and 1.5 years of a biochem degree ever have

OMGGGGG!! Are you taking Orgo 2 now, anyways thank you sooo muchh! I love you...respect for you

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Hey I just had to write a comment since you kind of saved my ass in quarantine with ALL of your spectroscopy videos I watched after having a breakdown over my so called "MSc.-Level-scipts"... Thank you so so so much.

@nathanielukah5058

3 жыл бұрын

Where can i get more of such videos please?

@karthikkd3471

3 жыл бұрын

@@nathanielukah5058 www.khanacademy.org/science/organic-chemistry/spectroscopy-jay

Thx dude, that helps a lot

crystal clear, thank you dude

It was an amazing lecture...thank u so much for this 😊

Great job...thank you.

you saved me. Had to understand nmr in 2 days to not fail my laboratory module...

This guy is a legend

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May be this will help me in the future.

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you really helped me,thank youu🥰🥰❤️

Very helpful video! Thank you so much. I have a question. Do we get another peak If the adjacent nitrogen protonates for a certain percentage of the molecule (e.g. 10mol% of CH3-CH2-CH2-CH2-NH2 is protonated and form CH3-CH2-CH2-CH2-NH3+; do we see two separate peaks for the adjacent C of the N for these two molecules).

Thank you, all the way from the University of Peradeniya in Sri Lanka

You are amazing.it help me alot

We need teachers like him in our universities 🙏💕 those PhD holder professors can't teach like this , and only insult students by saying that , you guyz are not hardworking , you guyz are not paying attention , you guyz are just passing your time in university, you have no interest in studies ..bla bla bla 😑 but the reason they can't teach properly , they even make simple things so much difficult with their extraordinary explanation that either we get confused or we just give up by thinking that we are not intelligent .. and when we ask questions they start scolding Infront of everyone and make fun of us ...😤 We are not duffer students , we need right teachers who teach us without make us feel dumb !!!❤️🌟✨

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thank you very much

So how do you explain why at 10:48min why does a secondary carbon has a higher chemical shift than tertiary carbon if they both have a score of 4?

@scottwatson6901

5 жыл бұрын

Well i'm about 5 months late but maybe this will help someone else... The carbon that has the score of 4 but is neighboring a tertiary carbon will end up having a higher "score". The other carbon with a score of 4 has a neighboring secondary carbon giving it a lower score than the other one. think of the neighboring carbon(s) as a tie breaker in these situations.

@LunaMatrix

4 жыл бұрын

@@scottwatson6901 " but maybe this will help someone else" I was that someone, thank you king!

are you can do a videos about IR & UV spectroscopy please please 😭

Thank you so much

Dude, my spectroscopy teacher’s salary should go to your wallet, thank you!

@tadiwanashegwiza

8 ай бұрын

😂😂😂😂

u r ausome thank u😭💙

very helpful

First of all, thank you for the perfect explanation, simple and clean. But i want to make a question: why does ketones have more cs than , for example, carboxylic acid? I mean : does not the electronegativity of Oxygen "take off" the electrons from the Carbon atom, reducing his screen for the external magnetic field, causing an increase of chemical shift ? I do not understand that. Thank you an keep it up !

@floopirossi3745

2 жыл бұрын

Bc carboxylic acids have resonance

For example, #6, wasn't the carbon b a tertiary carbon with a score value of 3 due to 3 primaries around?

@assialaib1642

2 жыл бұрын

i am wondering the same

Thank you!!! :)

Any help please...what's the number of carbons does cyclohezone has on 13 cnmr

Can someone explain the 13C of 2,2,4trimethyl-1,3pentandiol.cuz this system wont work for that.and there are similar ch3 groups having different peaks.

thank you

EXCELLENT

Thank you

@TheOrganicChemistryTutor At 29:25 Isnt carbon A a tertiary carbon, making the score of carbon B 4 which would give the higher chemical shift anyways?

Better than my prof ngl

The reason I love Ochem

Man U R amazing

Why does 13C have such a wider range as compared to 1H NMR?

25:00 Why do you call the second carbon in 2-chlorobutane as tertiary, while later naming the first carbon in 1-chlorobutane as primary?

@mtrav1

5 жыл бұрын

as far as I can tell, he is wrong.

@muslim19800

3 жыл бұрын

I know too late for you, may be other needs this; it is secondary caron not tertiary... the role is how many carbon atom attached to that carbon, if only one it is primary, if 2 carbon the secondary and so on .... nitrogen has the same principle, how many carbons attached to that nitrogen atom... sorry for the delay

im confused. how come around 1:22:00 when he talks about H NMR he's not using the adjacent carbon's hydrogens to determine the split pattern?

@samanthasonntag6463

4 жыл бұрын

Because the example wasn't HNMR. He was saying if it was then you would look at the adjacent hydrogen atoms. This is a transcript from my textbook about 13C NMR: "First, no splitting is observed between neighboring carbon atoms because of the low abundance of 13C. The likelihood of a compound having two neighboring 13C atoms is quite small, so 13C-13C splitting is not observed. In contrast, 13C-1H splitting does occur, and it creates significant problems. The signal of each 13C atom nucleus is split not only by the protons directly connected to it (separated by only one sigma bond) but also by the protons that are two or three sigma bonds removed. This leads to very complex splitting patterns, and signals overlap to produce an unreadable spectrum. To solve the problem, all 13C-1H splitting is suppressed with a technique called broadband decoupling, which uses two rf transmitters. The first transmitter provides brief pulses in the range of frequencies that cause 13C nuclei to resonate, while the second transmitter continuously irradiates the sample with the range of frequencies that cause all 1H nuclei to resonate. This second rf source effectively decouples the 1H nuclei from the 13C nuclei, causing all of the 13C signals to collapse to singlets. The advantage of broadband decoupling comes at the expense of useful information that would otherwise be obtained from spin-spin coupling. A technique called off-resonance decoupling allows us to retrieve some of this information. With this technique, only the one-bond couplings are observed, so CH3 groups appear as quartets, CH2 groups appear as triplets, CH groups appear as doublets, and quaternary carbon atoms appear as singlets. Nonetheless, off-resonance decoupling is rarely used because it often produces overlapping peaks that are difficult to interpret. "

why alkyne have low 13C valu than alkene??

saved my life

Can you do some problems that combine IR, H NMR, and C NMR? e.g. formula C5H8Cl2 what is the structure? IR (cm-1): 2950 1H NMR (δ): 1.4 (4H, triplet), 1.2 (4H, triplet) 13C NMR (ppm): 62 (singlet), 26 (triplet), 23 (triplet) i want to cry :( :(

Sir can you make video on 2 d nmr spectroscopy and please explain tocsy cosy hmbc hsqc spectra ? I will really appreciate it.

Thanks

Sir , i have a humble request to u ,can u explain pavia book chapter 6 problem no. -15 plzz sir

very useful : ) one confusion: when you talking about the triple bond group example, I think the carbon with triple bond should be 3° not secondary carbon. Please check~ I learn all chemical analysis stuff by your video.

@raanoooshh9296

4 жыл бұрын

A carbon with a triple bond cannot be bound to three R-groups and cannot therefore be a tertiary carbon, since a carbon atom cannot form five bonds.

@jennablue5763

4 жыл бұрын

I was wondering the same thing! Cb should have a score of 5 and Cc a score of 7.

On voit tjrs un pic à 78 dans RMN c13 cela signifie quoi ? Et des fois se cache ??

Thank you sooo much and please provide us COSY NOSY lecture... please