Chemical Shift In NMR Spectroscopy

[@TheOrganicChemistryTutor]

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[@fahimasultana6851]

I thought it was free 😅

[@notthecontinent]

I think you made a mistake in the first example saying Br is more electronegative than Cl. Cl has EN=3.16 and Br EN=2.96, so CH3-Br would be more upfield (shielded) relative to CH3-Cl.

[@joehunt7240]

True, the guy is a boss though, so should be forgiven :)

[@rainbowdust919]

I was thinking the same thing. When he goes to compare them right after that, he says it the other way around.

[@Exceltech810]

yep.

[@samara1344]

thank you! I was so confused by his mistake. Surprised there aren't more comments about it

[@karlschmelzer6325]

@@joehunt7240 hello from AXE tau chapter C=C

[@saschakoene2363]

My teacher was "explaining" this for an hour and a half and I understood NOTHING. I watched two of your videos (25 min total) and I understand everything. You are the best, thank you!!!!

[@Olivia-W]

Yes, I learned more in the first minute than in a 1.5 h lecture...

[@mohammadaamirkardar4358]

Incredibly helpful, as usual. Yours is the most reliable channel in KZbin for learning Chemistry in my opinion. Thank you so much.

[@razabazal4669]

We just started this when they decided to cancel school on us because of the corona virus and my good lord how thankful am I to have found you now that I dont have my teacher

[@nqobilenqobile6114]

same here

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This tutorial is still great after several years Thanks a lot

[@anwaralshammari8413]

Jest I want to thank you 🙏 I study chemistry in Kuwait university and I study organic chemistry with your videos and I got a B+ 🌹 thank you I wish you the best

[@muhabrehman8645]

@ 2:00 shouldn't methyl chloride have the higher chemical shift?

[@enochkandiah6445]

Indeed.

[@Coca-Cornla]

I'm studying 'H NMR' and didn't understand chemical equivalence. I got a lot of help in understanding your video. Thank you very much!

[@julietonyekaonwu3107]

Stick to your channel for years now, thank you JD.

[@lamaalghool8561]

please review the video. Chlorine is more electronegative than bromine, and not as you said. Thank you.

[@9001012]

Wish I was as advanced to nderstand ... I will get there .. Love your videos

[@adeebaibnat1030]

He deserves everything ❤️❤️❤️❤️❤️❤️

[@kusumshibaranjanibohidar5996]

Chlorine is more electronegative than bromine right?? F>Cl> Br> I

[@bineshe]

This video is very informative and thank you so much for this presentation, but one mistake that I had noticed w.r.t. electronegativity of Br ?

[@alexwinternitz1200]

I don't understand the explanation during minute ten. Methyl groups are electron donating groups so why does adding more decrease the shielding effect. For example, in a carbocation it is favorable to have more methyl groups connected because they stabilize the positive charge.

[@pugsley_makene]

you really make understanding organic chemistry easy!

[@munirabbe3932]

Thanks the video was really helpful. But what I need to know is 'Are the chemical shifts for each compound or functional groups constants or is there a way we can calculate them?

[@ManiaWalmart]

You did a mistake in the comparsion of methly bromide and methylchloride but i see you already changed in the decreasing order of electronegativity you have been saving lives since my my Junior Secondary School days you deserve a big award

[@jaiminraulji8491]

thank you. video was really helpful to me understanding of 1h nmr amazing 🤩

[@aliu760]

around 2:20 . Cl is more EN than Br . just stating for the confused audience. I 100% recommend him though

[@walkastray007]

533k subscribers! I remember when you had 10k, congrats man! Keep up the good work :)

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771k now

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Over two million now

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@@walkastray007 4.24 million now, he is the top KZbin educator on here. No one can reach his level, what a genius!!

[@visualjouneywithmanoj]

You said bromine is more electronegative than chlorine. In fact, chlorine is more electronegative than bromine. Therefore, CH3-Cl will have a higher chemical shift than CH3-Br. I just wanted to let you know that the order you showed was correct.

[@lizahasan1116]

Hope you the best your videos are amazing ❤😊

[@xinyanghermanleong9934]

Hi, your video is great! However, I have one question: at 14:08, you said methylbenzene is "more deshielded" than benzene (I thought the opposite is true), and methylbenzene has a greater chemical shift than benzene? I thought you said earlier in the video that sth more deshielded has a greater chemical shift? Nevertheless, thanks for your dedication on free education.

[@alexngasa5319]

Sure I support you

[@eyoshaphetyohannes294]

in first example CI is more electronegative than Br so more deshelled is methyl with Ci i think

[@PhilTheThrill]

Do you have any videos on quadratic word problems or modeling? I am in a college algebra math class.

[@ohmbhatt257]

5 years late but yeah he does, I’m assuming you ain’t in school anymore tho💀

[@octaviocampos1316]

@@ohmbhatt257 🤣

[@octaviocampos1316]

Where you at bro

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Wish me luck on my pop quiz later :) Thx for the video it helps me thousand times better than my class

[@nagavenipathak3219]

You are God 🙏 to me in field of chemistry. Plz bless us always with such vedios. This will be a great help. Love from india

[@tarekabdel-nabi9383]

chemical shiff

[@edwardmureka3870]

From 11:00 minute you mention that methyls are electron withdrawing groups? Is that so? And if that is the case, when do we properly use the term deshielded? I feel you need to state this fact the opposite way. I could be wrong though.

[@praisewealthonete7110]

Please where did you guys hear Bromine is more electronegative than Chlorine? Coz I heard Bromine is more electronegative than Silicon and that's why it's downfield away from TMS and TMS is upfield. Listen again please.

[@kavyarajanna87]

this is really a good video as i am preparing for csir this has helped me out really very well. please do a video on oxidation and reduction

[@bhupinderbedi8242]

Which application do you use for writing?

[@jesusmrosario-claudio4104]

Thank you once again.

[@rogersrivasan2150]

Truly magnificent! You are awesome!!!

[@raspberry5747]

2:07 bromine is less electro negative than chlorine right?

[@هاجربيتالمال]

Your channel deserves to be the best channel ♥️thank you for being very helpful 🥺i am a master student and really your video keeps helping me from my beginning 🤍

[@erindaandriana7090]

That laugh on 10:10 ...

[@trevorndhlovu7834]

Great video thanks.

[@josephgunturu7777]

Bro... Electronegativity of Cl is more than Br... please check bro... I'm confused little bit... but confirmed that...

[@mattgibson3633]

Chemical Shif

[@cotyb5028]

Does anyone else just feel like it's Mark Wahlberg teaching you chemistry when you watch these videos? I love it.

[@chell6022]

what a based man, thank you!

[@mehranshah5146]

The shift on methyl chloride is higher than the other coz chlorine is more potent electron withdrawing group

[@deatheth5039]

I understood that the chemical shift is caused by different electron density next to the measured nuclei but I wonder what the direct consequence is. Does the increased electron density on a 1H mean that it is easier to excite an 1H next to a +M/+I group and a lower frequency is needed to do so in comparison to an 1H next to a -I-Group? So as: "The more energy in the form of electrons surrounds your nuclei the less energy (=lower frequency) you need to excite the nuclei"y? (Sorry for my English, I honestly doubt that what I tried to say makes sense.. I'm just really confused)

[@jonathanlalrintluanga4737]

2:08 bromine is more electronegative than chlorine.. You sure?

[@SamGrace255]

Thanks 🎊..but methyl Cl is more electronegative than methyl Br

[@siki7115]

im so confused at the benzene and methylbenzene example at 14:08 T.T he said that methylbenzene's proton is more deshielded so it should have a higher chem shift but he wrote 2.1-2.3ppm whereas the benzene's proton chem shift is around 6.5-8.5ppm

[@nishantsaikia5985]

Can someone explain how a proton undergoes alpha spin and beta spin at its first state?

[@redbean9410]

basically you blow on it really hard and it just spins and spins and spins

[@Kiindoziil]

What program are you using for drawing please any one help me

[@TheOrganicChemistryTutor]

Here it is: kzbin.info/www/bejne/qHO2poClpLKMqNU

[@sayaliborade6351]

Why people here are talking about little mistake he did about chlorine and bromine? Please appreciate his work dont pick negligible mistake.

[@quanbui7663]

Can anyone explain why etilen has higher chemical shift than axetilen? Although Csp has higher electronegative than Csp2.

[@mominuddin6244]

nice vedio

[@jessapi6328]

May you always have great karma for these videos!!! You helped me so much 😭

[@Hawa1613]

Why Cl is less electronegative than Br?

[@atiyahussain3837]

Thank you so much!

[@graceroseedits9571]

Chlorine is more electronegative than bromine

[@paultwomey3082]

Make a Manufacturing playlist

[@DrTuph]

2:07 Cl is more electronegative than Br.

[@emmanuelpeter8288]

You made a major mistake by saying bromine is more electronegative than chlorine. However, your videos are helpful

[@Gencgello]

Hello, do you have any videos about chemical processes? I have trouble learning this and cant find it online. I wish you have it..

[@johnboutros8727]

Fall 2020 final check in

[@Abbie571]

Still don't understand the shielding effect stuff

[@julietonyekaonwu3107]

JD, there is little contradiction in the beginning of the video.

[@nishantsaikia5985]

2:15 slip of tongue. Methyl chloride has higher chemical shift than methyl bromide

[@keshavpillay9574]

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[@austinfrancis]

😘

[@FrancoiseRosendale-z4j]

Fiona Light

[@TitusLeitman-p2y]

Rubye Square

[@abbieespersen2376]

What

[@AryanSingh-eq2jv]

Bromine is more electronegative ? Bruh

[@LattimoreLuther-k7n]

Arno Loop

[@olivierk3024]

chemical shif*t*

[@olivierk3024]

thanks though, very helpful

[@ganeshgamidi956]

Please improve your English language and talk properly explanation is good but it cannot be understandable

[@CorisWorld404]

He's fluent. His English is great and understandable.

[@alisalman722]

He is extremely good and understandable

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His english is extremely well understandable

[@abcabc-ju3hf]

i can understand his english well

[@erikvx89]

You are one to talk. English is obviously not your first language by the look of your comment. You are the one that needs to improve.

[@pagongtagi6124]

I was having a wrong perception all this while, I thought 3 electron donating group bonded to the carbon will cause the methine proton to be more shielded.

[@urcringebro4706]

chemical shiff