IR Spectroscopy

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Well, this is weird. What are all these squiggles? Those peaks represent the wavelengths of infrared light that don't get to the detector, because there's some functional group in the sample absorbing them. Professor Dave busts out some dance moves in this one. Do the symmetric stretch!
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Опубликовано:

26 апр 2016

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Комментарии : 438

@litete2512 28 дней назад

I swear one sentence from this man makes me understand the whole topic better than an hour class.

@rubyherring 4 года назад

that was insanely well explained. you deserve every single subscriber.

@Cypher916 4 года назад

In my intention he deserves ALL the Sub´s...and stupid Prank Channels go crazy with subs...poor humanity. Very good information. I´ve refreshed my English skills , and on top of that, I´m packed with new knowledge. Go on to the next Video on this topic. *btw nice Tattoo *sry for misspelling xD i have to refresh even further ;) have a nice day all :)

@KNR90 3 года назад

Depending on where you are Scientists may use the opposite. Here we invert it, instead of dips we use peaks. Otherwise it's the same

@Kirby444 3 года назад

The question is, does he deserve tenure? Perhaps!

@gusrohan9868 2 года назад

instablaster.

@rycarious7878 3 года назад

I'm a senior in college and I've been watching your videos since sophomore year. You sir are a lifesaver and a gradesaver.

@icebergvishnu 6 лет назад

so smart...and such great hair..

@rittenbrake1613 6 лет назад

hahahahah great hair !!!

@MohdAkmalZakiIO 3 года назад

a professor hair.

@claremaguire5977 7 лет назад

It's 12:36am and I have my chem final at 9 tomorrow morning and I'd been flipping through my textbook and noticed IR spectroscopy, which I've never seen before, but which definitely will be on the final...so I'd just like to take this time to thank you for saving me about an hour of trying to understand this just from a textbook. Thanks for saving me time and energy!

@robertflores5520 7 лет назад

did you pass?

@Amy-se5ld 7 лет назад

Clare Maguire did you pass...

@claremaguire5977 7 лет назад

update: passed the course with an A+!! (didn't take me 4 months to get the results in though, only just noticed the replies now)

@Amy-se5ld 7 лет назад

Clare Maguire oh yes!! Congrats!!! Tools my ochem 2 final today!

@internationalrelations6552 6 лет назад

Give me no

@junnunahmed3470 3 года назад

Hands down the easiest to understand IR spectroscopy vid I found on youtube. The explanation is clear and engaging.

@user-nh3om9kw3y 4 года назад

Im pretty sure my chem teacher has seen this video cuz he was dancing with his arm like that in class😂

@ProfessorDaveExplains 4 года назад

It's the best way to explain it!

@user-nh3om9kw3y 4 года назад

Totally agree :)

@rajalrajal4944 Год назад

😅😅😅

@gustavocousino8183 9 месяцев назад

Mine did too 😭

@jesspalko2622 2 месяца назад

Chem Professor here, we all dance like this when we explain IR 😅😅❤️

@satishshinde8074 5 лет назад

This video changed my perspective from a neglected chapter in my Remote sensing course to me wanting to pursue a career in it. Thanks a lot!

@Linxsaisai5 7 лет назад

this saved my life, HL chemistry is kicking my butt and this is just what I needed. Everything is so clear when you explain it!!

@dayahsamad 7 лет назад

lol i've done it for 4 semesters and i can totally relate

@nnataliered 6 лет назад

IB buddies!

@mrkoala5127 4 года назад

couldn't have been explained any better. Perfect. Thanks my man! I feel extremely confident with it right now. It's time to look through all your other spectroscopy videos!

@mehwhocares2863 3 года назад

finally , a concise explanation on why graphs show transmission and a reference to the detector - looking for this has been killing me , and yet a 10 minute video explained better than i could find after 20 minutes searching, thanks Professor Dave - you're a real lifesaver !

@omahawarrior4837 Год назад

You're truly a professor, IR has never been narrated so well to me

@MrHughesNZ 6 лет назад

Brilliant prof. dave, you're the man! you should have way more views for this video. i'll be showing it in my lesson later today.

@SG-ot4uc 4 года назад

Such a great explanation. Have been struggling to understand spectroscopy and so grateful I see ur channel

@ditamayo7095 7 лет назад

Your video was so helpful and I love your enthusiasm!

@euniquebyrd6542 3 года назад

Everything becomes so much more clear after watching your videos! Thank you!

@veronicaaguiniga8496 Месяц назад

Just like your other videos, this video is perfect for those who need a deeper explanation on infrared spectroscopy. To be honest I struggle with identifying stretches in an IR spectrum and this video explains that and more. Thank you.

@samreenaziz8383 3 года назад

I wish our university professor could explain and made lectures, topics this easy. These videos are really helpful. Thanks to Professor Dave.

@samvedkulkarni4705 Год назад

Really well explained. From very basics and in depth. Got me to study IRs of some simple molecules as phenol and acetone and benzoic acid. Thank you. IR is a really very interesting concept

@nicole6a 7 лет назад

needed this! we're going over NMR next week and i'm trying to get ahead :)

@sruthib.5899 5 лет назад

You explain everything so well, thank you!

@Justmyopinionlol 4 года назад

so well explained! These videos are such classics, people have skipped comments for 2 years now but worth updating comments.

@seoheeyoon1135 7 лет назад

thank you so much for posting tutorials like this! I was really confused when reading my textbook but from this short 10 minutes video, I actually understood because your explanation was 🖒🖒🖒🖒🖒🖒🖒🖒🖒🖒🖒

@jatin5774 6 лет назад

Your way of explaining things is really good.I enjoy viewing your lectures.

@kyraellisedecastro1167 4 года назад

That was easy to understand! Thank you, Professor Dave!

@georgemissailidis3160 3 года назад

Professor Dave: talks very advanced science Also Professor Dave: *swinging my arms asymmetrically is a very difficult thing to do*

@guilhermefacchini1163 2 года назад

Parabéns pela aula!!!!! Extremamente didático! Você merece muito sucesso! Congratulations for the class!!! Extremely didactic! You deserve a lot of success!

@TheTgranber 6 лет назад

Loved this! Thank you from Finland!

@ambraquinones5801 3 года назад

I am so thankful to you! We need more professors like you.

@robertgranger3123 4 года назад

Hitting it out of the park. Thanks Dr. Dave

@GlynWilliams1950 3 года назад

you gave me a new insight into organic spectroscopy. Thank you for a great video.

@timothymilsom1392 Год назад

Thank you so much Professor Dave! I read about this in an MCAT prep book... If we ran a spectroscopy of my understanding, it would have demonstrated 0% absorption. After watching your video I have a much better understanding of how this process works! Thank you again!

@hellbenttrent Год назад

😂

@amritas2400 2 года назад

I was struggling to understand. Well explained! Thanks a lot, Professor Dave.

@mishalawilber1366 2 года назад

Thank you Professor Dave for doing these videos!

@diegomonteirogomes519 6 лет назад

Great teaching! Thanks from Brazil!

@danaperez7753 Год назад

I´m a spanish speaker and I didn't understand this theme before a found this video, now I totally understand everything, what a great video you have made, thanks

@ismailrasitdeniz7448 4 года назад

Well, Dave thank you for your great explaining. I practise english (listening) and learn chemistry thanks to your channel. Great job! 👏👏

@heavenonearth1231 Год назад

Super...less time consuming.....quick understandable❤❤❤ respecting you master 🙏🏻🙏🏻🙏🏻

@DarthVader-hl8ro 5 лет назад

I love your symmetric and asymmetric motions 😆

@Ariella0JJ 6 лет назад

Thank you very much:D Now I understand the IR-Spectroscopy. I wached so many videos but I just understand yours. :D

@omidahomi712 8 лет назад

Great videos prof Dave! Keep it up

@nickbutts4561 4 года назад

Holy cow, you explained this so well thank you!

@GalaxyDude96 Год назад

The first three minutes are an incredible summation of the theoretical principles of IR Spec 😮 I really wish I had known this existed when I was learning about it in class 😂

@monicaesthernambo8896 7 лет назад

Thank you so much, congratulations for your great explanation. Can you make a video about emission spectroscopy?

@ProfessorDaveExplains 7 лет назад

i'll put it on the list!

@prianshumullick9844 3 месяца назад

YOU ARE WONDERFUL SIR,YOUR VEDIOS ARE SHORT AND CRISP.IS JUST TAKES FEW MINUITS TO UNDERSTAND THINGS WELL

@abigailbui5753 3 месяца назад

you always make great videos but this one HIT! tysm 🤩🤩

@microbi.al6 6 лет назад

I am grateful for you Professor Dave

@rodher6754 2 года назад

I had never understood IR spectroscopy until now, great Video 💯

@justahuman6009 Год назад

Watching this before our spectroscopy exam, thanks a lot sir .

@lizaverma9252 2 года назад

I saw your videos in first time .your video helped me a lot to understand spectroscopy.love from India

@mohamadalani2506 7 лет назад

I love you man! you literally saved me from failing

@marycu620 3 года назад

Thank you! This is perfect, now I am aware of IR Spec and can be prepared for my quiz tomorrow

@vedumale1822 6 лет назад

Hey Dave.... You are really on of the best teachers in the world. And. the work you do is just extraordinary..... You're Great...... Your tutorials are really useful.....

@ProfessorDaveExplains 6 лет назад

thanks so much! happy to be of help

@ugochukwuegwuatu8519 Год назад

this man just explained in the first 4 mins what my org chem 2 teacher in university right now couldn't explain in 5 classes.

@vindyakelum90 7 месяцев назад

Oh what a lovely explanation . Thanks so much professor Dave ❤❤❤❤

@user-gg9yd2tx9q 2 года назад

Simple and great explaination , thanks a lot 🌸

@fredbatten9739 2 года назад

brilliant you're lessons always help!

@krishnannair606 5 лет назад

A lifesaver. Keep up the great work

@Tlocf 3 года назад

Prof. Dave saves the day once again.

@ashekai2545 7 лет назад

Ohmygod. I love all these videos. They're weirdly fun and knowledgeable to watch.

@ProfessorDaveExplains 7 лет назад

i love weird fun!

@adityashankar5267 4 года назад

@@ProfessorDaveExplains me 👋👋

@satishdora6170 2 года назад

Now my concept is clear about ir spectroscopy thanks professor Dave ✅

@user-oi1sy4oz1w 6 лет назад

This is what I needed. I always saved by your lessons!

@stabyguy5897 7 лет назад

very nice explanation, thank you very much

@Melanie-mt7xx 4 года назад

Thank you!! Such a great explanation!

@jaafarwamwere6282 2 года назад

You are changing lives!

@learnmore5490 3 года назад

Well explained Prof, bravo!

@nkuidjoufabien4555 3 месяца назад

Concise and precise video

@pro-dmusic Год назад

thanks Dave SO UNDERSTANDABLE

@PuspaAlmas 6 лет назад

Thank you, Dave!

@aleksg.5212 7 лет назад

It all makes sense now! Thank you so much!!

@musicspeaks0101 6 лет назад

Thank you, this was so helpful!

@ephraimabera4105 2 года назад

No words for how grateful I am. You are such a blessing💖

@specialparadise 5 лет назад

well exlained! Thank you sir!

@constantinoalberto7918 2 года назад

He explains more than my teacher. Keep it up Professor Dave, you ain't just covering the USA, but the entire world.

@differentmarina 7 месяцев назад

Wow! Great explained! Thank you Dave :)

@sofiastumpf5100 2 года назад

So so so helpful and clear. Thank you so much!!

@ashikiqbal785 3 года назад

Thanks for the explanation. It was really good and helpful for me. Thanks professor

@esmeraldaelhamzawy9114 7 лет назад

a very good video, keep up the good work!

@bh115 5 лет назад

Brilliant video, found it so useful!

@foj1027 7 лет назад

wow! amazing! it explains almost everything in my mind...

@artireddy3782 2 года назад

Very informative and well explained.

@lesliecorners6152 3 года назад

best explanation so far

@marwam4771 3 года назад

Thank you sir for after 4 years of college I finally understand IR well

@user-wo8hh5pz7o 3 года назад

Thank you for explanation! Your videos are very helpful :)

@larayoussef824 4 года назад

this will probably allow me to continue medschool! Thank you so much!

@ndkhurram001 3 года назад

Excellent explanation

@VigneshVicky-lf1sq 7 дней назад

You're videos are so curious sir!... Then thnxx alot hve spent on u're valuable tm with us around a smart tech lifestyle!.. Forever to loving passion on a warm example!.. Within clear CRYTALLISATION

@cassiewen722 4 года назад

very good and helpful video, thank you!

@masoomerezayat7726 4 года назад

oh! thank you sooo much! wohoo i survived! one of the best lectures that i ever had !

@typicalangryblackguy4022 4 года назад

excellent explanation!

@sphiwehlophe6840 2 года назад

Thank you prof, well explained.

@DaniyalKhan-gt5ol 6 месяцев назад

Thanks Professor Dave

@talhashah9583 Год назад

thankyou sir , explanation is perfect 😍

@neovoneovoneovo 7 лет назад

Very useful, thank you!!

@antongoldwyn6881 5 лет назад

Best explanation on RU-vid

@Supernyv 5 лет назад

Love it! Thanks man!

@raniaahmed5800 3 года назад

I really love your passion

@fayhamohamed2420 6 лет назад

it was so helpfull thank you very much Prof Dave

@yolandayang7380 4 месяца назад

thank you professor dave

@inaallen2243 4 месяца назад

A carbonyl group is C double bonded to O right? The functional group you identified on the right of the whiteboard is an sp2 C-H, which has a significantly different frequency (3050-3150) than carbonyl (1620-1680), which your drew in the spectra. I'm a little confused why you drew the carbonyl frequency in the spectra but identified it's functional group as a sp2 C-H instead?