Part 15: NMR - Spin Decoupling | Double Resonance | NMR Spectroscopy

[@lakshmim.p.8548]

Explained perfectly ..Thank you sir 🙏

[@srinu-ut3xy]

You are my chemist god....🤩

[@omkargadge6768]

Very Nice Explanation.Thank you👍🙏

[@Alchemist_171]

Pushpendra sir at our resque again! Thank for this amazing tutorial!

[@pkclasses100]

Glad to know 👍🏻 Thank you for the appreciation. Keep studying and Share the Video Links with your friends and help us to spread the knowledge. ❤️💜💙💛💚

[@Alchemist_171]

@@pkclasses100 Yes sir👍

[@harneetkahlon5]

It's awesome... Thank you for explaining so perfectly.. Sir plz make videos on Group Theory, EPR spectroscopy and NQR spectroscopy

[@twnklchadda4053]

very easy to understand sir really no need of any books is required

[@pkclasses100]

For making this video already 10 books were used 😀😍

[@twnklchadda4053]

@@pkclasses100 yes sir you had a very huge knowledge and you way of teaching is so easy to understand aftr that there is no need of anything else

[@bhanukiranm5240]

It made my exams very easy sir Thank you. ur vedios are Really nice and clear explanation sir really thank you soooooooo much sir.

[@simranchhabra5970]

After irradiation how this 1/2 and -1/2,+y, -y spins calculated ???

[@g.karthigakarthi2280]

Very nice explanation....really proud of u

[@mysticmoment-97]

Wow kitne dinose me aisa hi kuch dhund rhi thi. Thanks sir great job 😊

[@pkclasses100]

You can watch complete playlist of NMR and other techniques too. Thank you for the appreciation. Keep Watching and Share the Video Link with your friends and help us to spread the knowledge.

[@mysticmoment-97]

Yeah i watch many of the videos from series and it's very helpful

[@miryaadein9098]

Thank you for the lecture. Thank you from Bangladesh 🇧🇩🇧🇩

[@BilalAhmad-sr5uw]

Sir you teach best..

[@jagankumarkr6757]

I want more videos thak you sir . very useful

[@adityadatir6767]

How u denoting upside Downside Which method is this?

[@nitingoyat6588]

Excellent class sir ji

[@AzadAli-ty2uy]

Excellent explanation sir

[@harun_or_rashid_145]

very helpful video. thank you sir❤️❤️

[@kiruthikaMurugesan27]

Thanks a lots sir

[@chemistzahidasad5461]

Thanku so mch sir...for this helpful video

[@avijitmondal9728]

When we used this technique ?? please discuss with an example

[@dangianupam4725]

Your video are very useful for me

[@pkclasses100]

Thank you for the appreciation. Keep Watching and Share the Video Link with your friends and help us to spread the knowledge. 👍

[@dangianupam4725]

Thanks for your replay, can you make video on 2d nmr spectroscopy

[@Felixkeeg]

7:40 Sorry, but you lost me there. As far as I understand, if you irradiate the sample at the Larmor frequency of a given group, all the energy states should be populated equally. So a quartett with a splitting of 1:4:4:1 should become 1:1:1:1 Why is this not the case? Also: where does the notation with +1/2 +y -y -1/2 come from?

[@jainilvora4878]

Please exapain that how we can use this to simplify spectra

[@sujeetkumarsingh8061]

Very very good sir..........

[@pkclasses100]

Thank you for the appreciation. Keep Watching and Share the Video Link with your friends and help us to spread the knowledge. 👍

[@reshmambvr9627]

Thank you so much sir❣❣

[@sandippaul468]

so after decoupling,will every kind of protons produce single peak?

[@gmmedia1013]

Great sir your explanation and short notes

[@pkclasses100]

Thank you for the appreciation. Keep Watching and Share the Video Link with your friends and help us to spread the knowledge. 👍

[@gmmedia1013]

Yes sir

[@fighterspirit7358]

Great work sir

[@pkclasses100]

Fighterspirit Thank You for the appreciation. Keep Watching and Share the Video Link with your friends and help us to spread the knowledge.

[@akarapuabhi5462]

Great job sir

[@pkclasses100]

Thank you for the appreciation. Keep Watching and Share the Video Link with your friends and help us to spread the knowledge.

[@aishwaryasubburethinam6532]

Your explanation is very simple and clear. thank you so much sir

[@racheljayah]

Great video. Can you please tell me the camera you used for this?

[@pkclasses100]

Redmi note 4. But currently I'm using one plus 6

[@racheljayah]

@@pkclasses100 thank u so very much

[@vineetgoel3297]

Well explanation ever

[@faizakainat9427]

superb

[@macherlaraju4784]

Tq Sir, this video S so helpful to me

[@sumitkumarmadweshiya3911]

Excellent reprentation sir.

[@abdullahalnoman2589]

sir, Decupling in nmr and spin decoupling are the same things

[@patelvishal4890]

What is deuterium labelling ?

[@patelvishal4890]

Sir please explain dueterium labelling

[@pkclasses100]

Substitution of 1H with Its isotope Deuterium I.e. 2H is deuterium labelling. Example CHCl3 will be CDCl3 after labelling.

[@ummamatullah9179]

We will apply (n+1) (n'+ 1) rule in ethanol As heteroatom oxygen is present . It will be (a)- triplet , (b)- multiplet and (c) triplet .

[@carslover578]

Thanku so mch sir...for this helpful video😊... Can u plz make videos on photoelectron spectroscopy..plz sir

[@pkclasses100]

Thank you for the appreciation. Keep Watching and Share the Video Link with your friends and help us to spread the knowledge. 👍👍🏻

[@anfalsajid1373]

signls spliting nai ho ge tw humy pta kaisy chly ga k k kitny protons neighbor me hn??y we use it??i cnt undrstnd

[@pkclasses100]

Please watch complete playlist of NMR available in our channel.

[@sumansaha9200]

Dear sir, first of all a big thankyou to you for making these videos for students like us... And secondly regarding this video i have a question, if spin decoupling gives only 3 single peaks for ethanol how will we determine what are the groups present in any unknown compound? What is the usefulness of this technique if all the peaks are same? Thank you...

[@pkclasses100]

Chemical shift values will be different.

[@RahulThakur-pq3vm]

Sir please look on this question CDCl3 peak in H1NMR spectrum appears at-ppm A 5.26 B 2.36 C 3.36 D 7.26

[@pkclasses100]

CDCl3 will not give any peak in H1NMR because H is absent, Deuterium is present.

[@biswabratamodak19]

if you deal with pure CDCl3 it would not give any peak in 1H nmr, but Commercially available CDCl3 contains CHCl3 as impurity, thus it would show the peak of CHCl3 with low intensity at 7.26 ppm

[@anasahmed2496]

Thank you sir 👌

[@13babita82]

Thanks sir..

[@radhikamittal9079]

From where does this intense energy come? and why it eliminate spin spin coupling ... Dr Pushpendra sir

[@pkclasses100]

Please watch complete NMR series for better understanding.

[@payalchauhan1516]

Mass Spectrometry video available here???

[@pkclasses100]

Not yet, I will upload in September 2018. Keep Watching.

[@payalchauhan1516]

Ok sir

[@pkclasses100]

@@payalchauhan1516 Now available... Please watch.

[@jharkhand-jobs7]

hetro NMR ka sir link bhejte,agar ho ga to

[@ARUNKUMAR-qv8fs]

Sir lecture thoda large diya kro itne se m large answer types questions m keval 2 marks hi Mil payee. Waise aap pdhate bhaut achha ho. Thank you so much sir.

[@pkclasses100]

Uske liye books padhiye.

[@outofthebox5972]

but spin up state is more stable actually , I am not sure about your explanations

[@haniak7113]

Sir plz explain off rasonance decoupling... Its too confusing

[@dikshachodankar2850]

Sir, thank u...good info 1 question Coupled spectrun gives us the characteristic peaks... Decoupled spectrum is used to simplify the spectrum So how will we deduce the structure if it shows only singlets?

[@pkclasses100]

Singlet will be as it is.

[@dikshachodankar2850]

@@pkclasses100 ya sir...but then if all the 3 r singlets then how we will come to know that the molecule contains CH3 or CH2 and OH?

[@pkclasses100]

@@dikshachodankar2850 Delta value of Protons

[@dikshachodankar2850]

@@pkclasses100 ya okay sir... Got it👍

[@SNHyderabadiKitchen]

Awesome

[@RaviPrakash-fp7ck]

Sir how to know singlet doublet triplet in signals

[@pkclasses100]

Already explained in the video lectures, please watch splitting of signals.

[@swathimaroju8925]

Sir pls make a vedio on structure of proteins....plssss sir....humble request...

[@kiruthika.m6563]

Tq u for all u r videos the love for chemistry will never end now question sir when the intensities is lowered after irradiation and shows all are singlet then how we could find that which peak belongs to a, b or c?

[@pkclasses100]

According to the delta value.... And main point is that analyst will compare both spectra for interpretation.

[@kiruthika.m6563]

Tq u sir for the clarification and if u have time for upcoming videos give us 2 xamples with one complicated example pls sir

[@pkclasses100]

Practice the examples from Silverstein book.

[@kiruthika.m6563]

@@pkclasses100 tq u sir for the reference 😍😍

[@anshushishodiya6939]

Nice sir

[@RUBYKUMARI-sw5xd]

Sir spin decoupling mai kitna marks milega?

[@KAPS_Nov]

Sir mass spectroscopy ke video kb aayege ?

[@pkclasses100]

August me aa jayenge.

[@KAPS_Nov]

Sir NMR or kitna becha hai ?

[@pkclasses100]

NMR completed now. 2 more videos will be uploaded under NMR but that will be for C-13 NMR.

[@kodamnaveenkumar2046]

Sir please upload geminal and vicnal topic video

[@pkclasses100]

Already uploaded, Please go throgh the NMR playlist of our channel. Already uploaded under Part 14.

[@kodamnaveenkumar2046]

TQ for your reply

[@domavijayareddy3199]

Thank you sir

[@pkclasses100]

Welcome!!!!!!! Keep Watching and Share the Video Link with your friends and help us to spread the knowledge.

[@nidhibhagat3115]

Hello sir plzz share me link on NOE

[@macherlaraju4784]

This video S are easily understand

[@anshushishodiya6939]

Sir plz lecture on group theory

[@ghoshmamon9365]

Why intensity of 13c signal is increased in double irradiation... please inform sir as soon as possible

[@Saifmansour95]

كافي عذبتني شدتحجي

[@rushikeshbhosale7284]

🙏

[@laviurukuti4512]

Thank u sir🙏🙏

[@dharmaanandam5629]

Awesome

[@uttamkumarmajhi6210]

Thank you sir...

[@gracysimon3914]

Thank you sir