IR Spectroscopy

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  • เผยแพร่เมื่อ 26 เม.ย. 2016
  • 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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ความคิดเห็น • 438

  • @rubyherring
    @rubyherring 4 ปีที่แล้ว +649

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

    • @Cypher916
      @Cypher916 4 ปีที่แล้ว +2

      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
      @KNR90 3 ปีที่แล้ว

      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
      @Kirby444 3 ปีที่แล้ว

      The question is, does he deserve tenure? Perhaps!

    • @gusrohan9868
      @gusrohan9868 2 ปีที่แล้ว +1

      instablaster.

  • @rycarious7878
    @rycarious7878 3 ปีที่แล้ว +189

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

  • @litete2512
    @litete2512 หลายเดือนก่อน +8

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

  • @claremaguire5977
    @claremaguire5977 7 ปีที่แล้ว +290

    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
      @robertflores5520 7 ปีที่แล้ว +6

      did you pass?

    • @Amy-se5ld
      @Amy-se5ld 7 ปีที่แล้ว +1

      Clare Maguire did you pass...

    • @claremaguire5977
      @claremaguire5977 7 ปีที่แล้ว +60

      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
      @Amy-se5ld 7 ปีที่แล้ว +3

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

    • @internationalrelations6552
      @internationalrelations6552 6 ปีที่แล้ว +1

      Give me no

  • @junnunahmed3470
    @junnunahmed3470 3 ปีที่แล้ว +73

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

  • @icebergvishnu
    @icebergvishnu 6 ปีที่แล้ว +493

    so smart...and such great hair..

  • @Linxsaisai5
    @Linxsaisai5 7 ปีที่แล้ว +112

    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
      @dayahsamad 7 ปีที่แล้ว +4

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

    • @nnataliered
      @nnataliered 6 ปีที่แล้ว +1

      IB buddies!

  • @omahawarrior4837
    @omahawarrior4837 ปีที่แล้ว +16

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

  • @satishshinde8074
    @satishshinde8074 5 ปีที่แล้ว +19

    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!

  • @mrkoala5127
    @mrkoala5127 4 ปีที่แล้ว +12

    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!

  • @user-nh3om9kw3y
    @user-nh3om9kw3y 4 ปีที่แล้ว +180

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

  • @mehwhocares2863
    @mehwhocares2863 3 ปีที่แล้ว +1

    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 !

  • @SG-ot4uc
    @SG-ot4uc 4 ปีที่แล้ว +7

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

  • @ditamayo7095
    @ditamayo7095 7 ปีที่แล้ว +13

    Your video was so helpful and I love your enthusiasm!

  • @samreenaziz8383
    @samreenaziz8383 3 ปีที่แล้ว

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

  • @euniquebyrd6542
    @euniquebyrd6542 3 ปีที่แล้ว +2

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

  • @nicole6a
    @nicole6a 7 ปีที่แล้ว +10

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

  • @MrHughesNZ
    @MrHughesNZ 6 ปีที่แล้ว +6

    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.

  • @sruthib.5899
    @sruthib.5899 5 ปีที่แล้ว +6

    You explain everything so well, thank you!

  • @veronicaaguiniga8496
    @veronicaaguiniga8496 หลายเดือนก่อน

    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.

  • @Justmyopinionlol
    @Justmyopinionlol 4 ปีที่แล้ว +1

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

  • @kyraellisedecastro1167
    @kyraellisedecastro1167 4 ปีที่แล้ว +4

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

  • @samvedkulkarni4705
    @samvedkulkarni4705 ปีที่แล้ว +1

    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

  • @seoheeyoon1135
    @seoheeyoon1135 7 ปีที่แล้ว +8

    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 🖒🖒🖒🖒🖒🖒🖒🖒🖒🖒🖒

  • @ambraquinones5801
    @ambraquinones5801 3 ปีที่แล้ว +1

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

  • @robertgranger3123
    @robertgranger3123 4 ปีที่แล้ว

    Hitting it out of the park. Thanks Dr. Dave

  • @TheTgranber
    @TheTgranber 6 ปีที่แล้ว +5

    Loved this! Thank you from Finland!

  • @GlynWilliams1950
    @GlynWilliams1950 3 ปีที่แล้ว

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

  • @jatin5774
    @jatin5774 6 ปีที่แล้ว

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

  • @amritas2400
    @amritas2400 2 ปีที่แล้ว

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

  • @mishalawilber1366
    @mishalawilber1366 2 ปีที่แล้ว

    Thank you Professor Dave for doing these videos!

  • @nickbutts4561
    @nickbutts4561 4 ปีที่แล้ว +4

    Holy cow, you explained this so well thank you!

  • @timothymilsom1392
    @timothymilsom1392 ปีที่แล้ว +1

    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!

  • @Ariella0JJ
    @Ariella0JJ 6 ปีที่แล้ว +5

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

  • @justahuman6009
    @justahuman6009 ปีที่แล้ว

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

  • @georgemissailidis3160
    @georgemissailidis3160 3 ปีที่แล้ว +48

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

  • @microbi.al6
    @microbi.al6 6 ปีที่แล้ว +1

    I am grateful for you Professor Dave

  • @diegomonteirogomes519
    @diegomonteirogomes519 6 ปีที่แล้ว +2

    Great teaching! Thanks from Brazil!

  • @GalaxyDude96
    @GalaxyDude96 ปีที่แล้ว

    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 😂

  • @marycu620
    @marycu620 3 ปีที่แล้ว

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

  • @ismailrasitdeniz7448
    @ismailrasitdeniz7448 4 ปีที่แล้ว +2

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

  • @prianshumullick9844
    @prianshumullick9844 3 หลายเดือนก่อน

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

  • @DarthVader-hl8ro
    @DarthVader-hl8ro 5 ปีที่แล้ว +4

    I love your symmetric and asymmetric motions 😆

  • @monicaesthernambo8896
    @monicaesthernambo8896 7 ปีที่แล้ว +13

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

  • @danaperez7753
    @danaperez7753 ปีที่แล้ว

    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

  • @rodher6754
    @rodher6754 2 ปีที่แล้ว

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

  • @heavenonearth1231
    @heavenonearth1231 ปีที่แล้ว

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

  • @Tlocf
    @Tlocf 3 ปีที่แล้ว +1

    Prof. Dave saves the day once again.

  • @guilhermefacchini1163
    @guilhermefacchini1163 2 ปีที่แล้ว +1

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

  • @mohamadalani2506
    @mohamadalani2506 7 ปีที่แล้ว +7

    I love you man! you literally saved me from failing

  • @omidahomi712
    @omidahomi712 8 ปีที่แล้ว +2

    Great videos prof Dave! Keep it up

  • @ashekai2545
    @ashekai2545 7 ปีที่แล้ว +10

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

  • @marwam4771
    @marwam4771 3 ปีที่แล้ว +1

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

  • @constantinoalberto7918
    @constantinoalberto7918 2 ปีที่แล้ว

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

  • @user-gg9yd2tx9q
    @user-gg9yd2tx9q 2 ปีที่แล้ว +1

    Simple and great explaination , thanks a lot 🌸

  • @stabyguy5897
    @stabyguy5897 7 ปีที่แล้ว +4

    very nice explanation, thank you very much

  • @musicspeaks0101
    @musicspeaks0101 6 ปีที่แล้ว +1

    Thank you, this was so helpful!

  • @ugochukwuegwuatu8519
    @ugochukwuegwuatu8519 ปีที่แล้ว

    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.

  • @abigailbui5753
    @abigailbui5753 3 หลายเดือนก่อน

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

  • @satishdora6170
    @satishdora6170 2 ปีที่แล้ว

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

  • @user-oi1sy4oz1w
    @user-oi1sy4oz1w 6 ปีที่แล้ว

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

  • @PuspaAlmas
    @PuspaAlmas 6 ปีที่แล้ว

    Thank you, Dave!

  • @foj1027
    @foj1027 7 ปีที่แล้ว +1

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

  • @krishnannair606
    @krishnannair606 5 ปีที่แล้ว

    A lifesaver. Keep up the great work

  • @larayoussef824
    @larayoussef824 4 ปีที่แล้ว

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

  • @vindyakelum90
    @vindyakelum90 7 หลายเดือนก่อน

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

  • @Melanie-mt7xx
    @Melanie-mt7xx 4 ปีที่แล้ว

    Thank you!! Such a great explanation!

  • @vedumale1822
    @vedumale1822 6 ปีที่แล้ว

    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.....

  • @learnmore5490
    @learnmore5490 3 ปีที่แล้ว

    Well explained Prof, bravo!

  • @aleksg.5212
    @aleksg.5212 7 ปีที่แล้ว +5

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

  • @sofiastumpf5100
    @sofiastumpf5100 2 ปีที่แล้ว

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

  • @ephraimabera4105
    @ephraimabera4105 2 ปีที่แล้ว

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

  • @lizaverma9252
    @lizaverma9252 2 ปีที่แล้ว

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

  • @ashikiqbal785
    @ashikiqbal785 3 ปีที่แล้ว

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

  • @pro-dmusic
    @pro-dmusic ปีที่แล้ว

    thanks Dave SO UNDERSTANDABLE

  • @artireddy3782
    @artireddy3782 2 ปีที่แล้ว

    Very informative and well explained.

  • @fredbatten9739
    @fredbatten9739 2 ปีที่แล้ว

    brilliant you're lessons always help!

  • @cassiewen722
    @cassiewen722 4 ปีที่แล้ว

    very good and helpful video, thank you!

  • @bh115
    @bh115 5 ปีที่แล้ว

    Brilliant video, found it so useful!

  • @sphiwehlophe6840
    @sphiwehlophe6840 2 ปีที่แล้ว

    Thank you prof, well explained.

  • @specialparadise
    @specialparadise 5 ปีที่แล้ว +2

    well exlained! Thank you sir!

  • @jaafarwamwere6282
    @jaafarwamwere6282 2 ปีที่แล้ว

    You are changing lives!

  • @nkuidjoufabien4555
    @nkuidjoufabien4555 3 หลายเดือนก่อน

    Concise and precise video

  • @differentmarina
    @differentmarina 7 หลายเดือนก่อน

    Wow! Great explained! Thank you Dave :)

  • @user-wo8hh5pz7o
    @user-wo8hh5pz7o 3 ปีที่แล้ว +1

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

  • @esmeraldaelhamzawy9114
    @esmeraldaelhamzawy9114 7 ปีที่แล้ว +1

    a very good video, keep up the good work!

  • @neovoneovoneovo
    @neovoneovoneovo 7 ปีที่แล้ว +1

    Very useful, thank you!!

  • @rehabalsaleh166
    @rehabalsaleh166 4 ปีที่แล้ว

    Thank you! It really helped.

  • @VigneshVicky-lf1sq
    @VigneshVicky-lf1sq 10 วันที่ผ่านมา

    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

  • @anifavogel657
    @anifavogel657 8 ปีที่แล้ว +1

    thank you so much!

  • @olimpiapadula2246
    @olimpiapadula2246 4 ปีที่แล้ว

    Thank you Dave

  • @rosemariereinhardt5897
    @rosemariereinhardt5897 3 ปีที่แล้ว

    omg, thanks for the video. I couldn't understand what my teacher was trying to explain to me until this moment, hope I'll pass the exam c:

  • @fayhamohamed2420
    @fayhamohamed2420 6 ปีที่แล้ว

    it was so helpfull thank you very much Prof Dave

  • @DaniyalKhan-gt5ol
    @DaniyalKhan-gt5ol 6 หลายเดือนก่อน

    Thanks Professor Dave

  • @ndkhurram001
    @ndkhurram001 3 ปีที่แล้ว

    Excellent explanation

  • @souravsarkar8051
    @souravsarkar8051 4 ปีที่แล้ว +2

    splendid. absolutely

  • @lesliecorners6152
    @lesliecorners6152 3 ปีที่แล้ว

    best explanation so far

  • @midoemad7610
    @midoemad7610 7 ปีที่แล้ว +1

    thank you so much you made my day

  • @yolandayang7380
    @yolandayang7380 4 หลายเดือนก่อน +1

    thank you professor dave

  • @antongoldwyn6881
    @antongoldwyn6881 5 ปีที่แล้ว

    Best explanation on TH-cam