Absorption Band and Wavenumbers in Infrared Spectroscopy

[@jsscmmllpll6]

in grad school where you're expected to learn pretty much everything yourself regardless of how good of a professor you have...this video has put together so many major concepts for IR in a concise and effective manner. thank you for this video. please continue making a difference for students like me.

[@hlongshlongs8729]

I'm an undergrad,, yet I understand nothing in class its super fast. I'm always lost. This is where I learn. I'm so grateful. The system they use in school is just not fair.

[@blazetimothy8974]

sorry to be so offtopic but does any of you know of a tool to log back into an Instagram account?? I was stupid forgot my account password. I would love any assistance you can give me

[@bowenalfonso3208]

@Blaze Timothy Instablaster :)

[@a.p3201]

THANKS FOR SAVING MY LIFE SIR YOU ARE SAVING STUDENTS 1 VIDEO AT A TIME EVEN 9 YEARS AFTER U UPLODADED THIS VIDEO

[@sunitapandey1195]

The best content I found for this topic.

[@Realeyeiz]

The best channel I have found on chemistry

[@fasbcpa316]

Yep, I'm going to keep watching until I get bored....so far, it's awesome

[@Kausarniyazee]

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[@Kausarniyazee]

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[@rgtalks2104]

Amazing Stuff. It would be really helpful if you had a similar video for XRD as well!

[@mikikook]

Very clear and helpful, thanks a lot

[@aaronwilson2425]

These videos are a great summary of the basic principles of this analysis technique and have helped massively with my understanding of the topic. However, I'm explaining how this technique is used in a piece of university work and so am in need of academic references on the subject. I don't suppose anyone could suggest any of the original publications which describes this technique in detail? Thank you in advance and thanks again for the videos!

[@nostro1940]

13:09 More single bond character = higher wavenumber due to C-O on the molecule on the right

[@alptugnazlim4525]

It is a great lecture ! Thank you.

[@ronin6158]

It is obvious the 'bond' does not absorb the photon, but the electrons in them, and electrons absorb photons according to their orbital state(s). Could you go into exactly why the stretching/wagging freq matches the photon absorption, eg: spectral lines, or do they? They seem like different things that may affect each other, but are distinct.

[@tranvu266]

this tutorial is awesome ! thank you !!!

[@jasonlvlifequotes9647]

Is the answer going to be the same if the question wasn't specific like due to carbonyl group in the first question?

[@sanjeebkumar447]

I like ur every vedio bro Pleaseeeeeee add more contents like this and please add more information in every vedio because u make it understand properly with examples and diagrams

[@Knowbee]

Thank you so much for your kind words. However, I no longer make any new videos. I'm working in a completely different industry now. So, what you see is what you get.

[@giovanni-hf9uo]

@@Knowbee i'm so sorry to hear that it's a shame

[@simonmendoza6629]

5:52 Hehehe... He wrote heaver :P I'm only teasing. I enjoyed the video tons. Very helpful.

[@bio-pharmalearners]

Great explanation

[@Eric-sq4hd]

these are really good videos.

[@priyabrataupadhyaya8031]

sir please explain how can we know particular i.r frequencies of a molecule in i.r spectroscopic problems

[@salifumariam2479]

Love your videos

[@amisharaj3085]

In sample problem 2 why are we not considering the masses of O and N?

[@saisriangajala8399]

electron withdrawing and donating group point is not discussed in the video.

[@AloisNgonyani]

Very useful video

[@harleendhugga]

You mentioned lighter tha mass of atoms greater is the wavenumber but C=O has 1700-1800 but C=C has 1680-1600 why so? C has less mass than O so shouldn't C=C have higher wavenumber than C=O

[@RR-ur9no]

C-C is a single bond. Single bond has less energy.

[@aroojshahid5658]

cause yolo swaggg

[@suniladiyodi]

oxygen is more electronegative compared to carbon. therefore the electronegativity difference in C=O is more compared to the C=C bond. if the electronegativity difference is more, stronger the bond. so C=O bond is stronger than a C=C bond, and if the bond is strong, requires more energy for its vibration. therefore C=O bond showing a higher wave number than C=C.

[@dagogg1]

the C=O bond is stronger and shorter than the C=C bond. Oxygen is more electronegative than Carbon. Therefore, the C=O bond has a higher wave number.

[@LosizakII]

Perfect. Thank you.

[@uzmaqureshi640]

wonderful

[@rassimsimou1594]

Good

[@jagadeeshmanda2497]

Nice one

[@analist-3000]

Great!

[@rishabhshuklabeatsproducti2182]

Applause 👏

[@NabeelAhmed-od4mo]

'we're just gonna accept this equation as true' haha.

[@CmklotsaOkmlitsa-i8p]

Wisozk Dale

[@ninja00098]

probably a good video but i stopped at 50 seconds when i heard you say aa-ffect 😭