11 years later, this very niche video is still helping people. Thank you, this video is wonderful!
@sidewaysfcs07188 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.
@searching4shit26 жыл бұрын
Just answered a 33% of my Analytical Techniques question, quite clearly in 8 minutes, owe you one
@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
@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.
@angeluomo8 жыл бұрын
This is clear and excellent. Many thanks!
@explanationfunda47146 жыл бұрын
best video to understand the basics of IR and RAMAN, thanks a lot
@kremesti6 жыл бұрын
awesome presentation, clear voice, to the point bravo
@lunagh61493 жыл бұрын
as a physics student this saved my life , thanks a lot.
@varaprasad61197 жыл бұрын
Can you add whole playlist of spectroscopic methods?
@marcosmonsanto58237 жыл бұрын
Someone can tell me Wy we can determineded Cu with absorcion spectrofotometry
@fractalnomics6 жыл бұрын
5:11 sample irradiated, inelastic, 'transfer between molecule and photon 3:35 Beer's Law, concentration proportional to absorbance
@ITFAE4 жыл бұрын
holy. this a great video. thank you
@purushothsivam87613 жыл бұрын
Nice video very useful, thanks
@ericjiang18245 жыл бұрын
Nice video, excellent!
@superluminal892 жыл бұрын
Would laser spectroscopy be a better way to determine information of a sample?
@rajeshthangappan15945 жыл бұрын
Tell the difference between Raman and FT-IR sepecrometer
@shivamsahil36606 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?
@samjolayemi49068 жыл бұрын
Whao! thank u so much
@energetic00cookie9 жыл бұрын
Very useful, thank you!
@bharadwajbhanu4787
7 жыл бұрын
energetic00cookie
@lailasoliman93153 жыл бұрын
Very useful and understanding
@fractalnomics5 жыл бұрын
4:44 Yes, and this (CO2) mode is registered clearly by Raman Spectroscopy. Why isn't that stated?
@mereadswiki61753 жыл бұрын
why is there a modern warfare 2 hit sound when slides change lol
@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! :)
Пікірлер: 28
11 years later, this very niche video is still helping people. Thank you, this video is wonderful!
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
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.
Just answered a 33% of my Analytical Techniques question, quite clearly in 8 minutes, owe you one
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
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.
This is clear and excellent. Many thanks!
best video to understand the basics of IR and RAMAN, thanks a lot
awesome presentation, clear voice, to the point bravo
as a physics student this saved my life , thanks a lot.
Can you add whole playlist of spectroscopic methods?
Someone can tell me Wy we can determineded Cu with absorcion spectrofotometry
5:11 sample irradiated, inelastic, 'transfer between molecule and photon 3:35 Beer's Law, concentration proportional to absorbance
holy. this a great video. thank you
Nice video very useful, thanks
Nice video, excellent!
Would laser spectroscopy be a better way to determine information of a sample?
Tell the difference between Raman and FT-IR sepecrometer
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?
Whao! thank u so much
Very useful, thank you!
@bharadwajbhanu4787
7 жыл бұрын
energetic00cookie
Very useful and understanding
4:44 Yes, and this (CO2) mode is registered clearly by Raman Spectroscopy. Why isn't that stated?
why is there a modern warfare 2 hit sound when slides change lol
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! :)
great video thanks girl
talk too much, maybe give some drawings