11 years later, this very niche video is still helping people. Thank you, this video is wonderful!
@sidewaysfcs07189 жыл бұрын
polarizability is simply the ability of a molecule to have it's electron density deformed, an asymmetric stretch would not deform the density it would only shift it in one direction, changing the dipole, but not changing the polarizability too much
@Tinp2Life9 жыл бұрын
Holy shit, I didnt get why sometimes it's IR active and sometimes it isnt but i get it now. You're great, lady, omg I owe you my life I love u.
@explanationfunda47147 жыл бұрын
best video to understand the basics of IR and RAMAN, thanks a lot
@lunagh61493 жыл бұрын
as a physics student this saved my life , thanks a lot.
@MrBiggestApple7 жыл бұрын
Thank you for the video, I needed just one more little clue to finally get it :) Keep up the good work, you explain pretty well and you have a nice voice to listen to :D
@angeluomo9 жыл бұрын
This is clear and excellent. Many thanks!
@KakashiBallZ11 жыл бұрын
It's because the polarizability from the stretch on one side of CCl4 is "canceled out" by the compression of the other C-Cl bond in the asymmetric stretch, so there is little change in polarizability overall in that particular vibrational mode.
@fractalnomics7 жыл бұрын
5:11 sample irradiated, inelastic, 'transfer between molecule and photon 3:35 Beer's Law, concentration proportional to absorbance
@purushothsivam87614 жыл бұрын
Nice video very useful, thanks
@fractalnomics6 жыл бұрын
4:44 Yes, and this (CO2) mode is registered clearly by Raman Spectroscopy. Why isn't that stated?
@varaprasad61197 жыл бұрын
Can you add whole playlist of spectroscopic methods?
@rajeshthangappan15945 жыл бұрын
Tell the difference between Raman and FT-IR sepecrometer
@superluminal892 жыл бұрын
Would laser spectroscopy be a better way to determine information of a sample?
@kremesti6 жыл бұрын
awesome presentation, clear voice, to the point bravo
@mereadswiki61753 жыл бұрын
why is there a modern warfare 2 hit sound when slides change lol
@shivamsahil36607 жыл бұрын
Hello mam! I am btech mechanical engineering student and I am working on a project related to raman spectroscope I had some doubts regarding that can you please help me with them?
@marcosmonsanto58237 жыл бұрын
Someone can tell me Wy we can determineded Cu with absorcion spectrofotometry
@energetic00cookie9 жыл бұрын
Very useful, thank you!
@bharadwajbhanu47878 жыл бұрын
energetic00cookie
@ITFAE4 жыл бұрын
holy. this a great video. thank you
@lailasoliman93154 жыл бұрын
Very useful and understanding
@ericjiang18245 жыл бұрын
Nice video, excellent!
@oddesy411 жыл бұрын
Confused on the Raman part. So change in polarisability needed for raman (due to change in shape/electron cloud position), would this not suggest that the asymmetric stretch would be more raman active as the shape change is more significant, as the structure is no longer a symmetrically linear geometry? This video did help clear up alot for me though thanks! Any response would be appreciated as i have my exams on this in a few weeks! :)