Symmetry: IR and Raman Spectroscopy

[@nikhilesh4235]

Those who are eager to learn will not be bothered by frivolous things like sound quality. Your presentation was crystal clear and helped us learn the concepts of symmetry applications in IR and Raman spectroscopy. Thank you so much!

[@bagel2906]

im eager to learn but im also autistic and the constant smacking of the lips physically hurts me

[@figueroa325]

Hi, there! I am currently in grad school for chemistry, and I just want you to know that I sincerely appreciate the video. It helped a lot, and I am so sorry about the terrible comments. Professors and teachers don't receive enough recognition for what they have to do with the little they have. Thank you so much and have a good one!

[@lyricsronen]

Okay I know there's mouth sounds but come on who's disliking this? The woman made a half hour video not skipping a single detail

[@missygarrett1338]

Yes, I know the microphone was too close. The university only bought me a headset microphone to use. That was all I had to go with. Assistant profs aren't rich, and California is expensive. I recorded these mainly for my class, but made them public at the request of several friends. So please be kind with the comments. I am a person with feelings. They have done more good helping people learn than they have annoyed people with my voice. If they really bother you that much, you can pay me to fix it. LOL

[@marcelnoel6717]

sorry to be off topic but does anyone know of a method to log back into an instagram account? I was stupid lost the login password. I would love any tricks you can offer me!

[@aaditjoshi4840]

the mic was perfect wdym? no one is complaining and you dont have to explain yourself in any way, this video was really great! if someone doesnt like this video, they can sincerely fuck off and watch some other video, you did a great job here.

[@Axel77430]

Thank your for share your knowledge Professor.

[@WalkWithAkash]

A teacher is annoyed and she had to appologies for dumb things. Are you civilized guys?

[@jabbedcrab]

Ty for your videos!

[@Lakshikamalwana]

Thank you so much! I watched this yesterday and today was the exam. I got the whole question right!!! 24 points just because of you. thanks again.

[@melissagarrett2332]

You are so welcome! I am glad that helped. I know when I was in grad school this was really difficult for me.

[@carl10x]

I love how this video leaves no obscure symbol/notation thing untouched and explains why things are the way they are. Excellent work.

[@zazaza5535]

Explaining as much as possible in 32 minutes, this is incredible.

[@srw2289]

Thank you so much for uploading this video! You helped me understand the relationship between irreducible representations and raman & IR spectrum.

[@ghazalia8701]

This video was very well done. I have learned a lot. Thank you very much for your time and effort in providing this informative and captivating video.

[@faizahmad7002]

Thank you for recording this lecture. It was really helpful. Good to see you are a full professor now !

[@deshengzheng4704]

Thank you, this is one of the greatest video about how to use character table.

[@juliariordan6082]

Thanks allot for the explanation it really helped me understand the topic much better!

[@cameronlight8504]

Thank for very much, this video will be my personal Bible for the rest of the unit.

[@Anamikaaaa]

I was searching for this video from so long . Thank you very much

[@randomnerd1015]

This video helped me a lot! Thank you so much! My professor is not instructing us whatsoever and is just giving us data. Granted it is a lab course, but the other lecture course has not covered this material. This walks through everything very nicely!

[@alchemist4378]

best video which clearly explain red and ired rep as well as the active vibrational modes....thnkuuuuu so muchhh

[@wolfisr]

thanks for this info, its really helpful. you dive into details my symmetry class skipped. cheers!

[@DrBouwman]

Wonderful video! This is a super clear explanation of the basis of group theory!

[@bboyHarrypotter]

1:40 captial gamma, not lambda

[@luqmanajisafe6208]

Thank you very much. This is definitely the best video I have seen on this topic.

[@mps2112]

*Starts nanofabrication course for electronic engineering *Looks inside Raman spectroscopy 😳 Thank-you so much for this video it helped me a lot!

[@thomaskuruvilla9981]

Good presentation. Thank you for publishing it for the benefit of many.

[@GayeEryucel]

thank you so much for your effort miss, you explained all the details very well! i understood all the points that i missed in class. wish you good work!❤

[@basabdas9258]

This is a very conceptual one for the point group symmetry...Thank you for this tutorial...

[@kiritpatel722]

a lots of lots of thanks to U. It is very useful vidieo. thanks again.

[@Keesz1]

Can't listen to this but it's informative!

[@fajarlan3075]

Thank you for your material course :) I love you

[@AdrianCastravete]

Shouldn't the identity column be -1 for B/antisymmetric at 4:20 ?

[@xinzhong822]

Cannot help to leave a comment. In 8:25, it says Ramen active. :O

[@nonamecukubik]

I can't thank you enough. Thank God or whatever you believe in or not, there are people like you who chose to help others.

[@missygarrett1338]

You are most welcome. I believe in God and his son, Jesus Christ. I do my best to honor him and help others. And when I screw up, I am grateful for his grace. :-)

[@JuicedH]

You are incredible!!

[@ThubanDeneb]

Very good work Melissa.

[@SikhanyisoNdlovu-rt7cq]

The video is so helpful and clear thank you so much

[@zs6564]

The video was informative. But please move the microphone further from your mouth. lol

[@Hoodedicon14]

Extremely helpful, thank you

[@NeoUno866]

This has been so helpful! Thank you!

[@kamysanchez01]

thank you so much !!!! i have been looking for a video that could make me understand this and i finally found it , thank u thank u thank uuu

[@sollinw]

I enjoyed the learning process. u r great

[@BaydenWood-v7j]

Great video! Could you please explain to me why the B1 mode is not IR active? It is associated with the linear function "x" in the C2V point group character Table so it should be IR active I would have thought.

[@YTantirungrotechai]

This is a great vdo. Thank you for sharing.

[@barancel11]

it was clear as crystal. thank you

[@MajidKhan-yp2zy]

can you post video for complex molecules!

[@unr3achabl35ky5]

Great thanks to you it s absolutely an good video to understand how characterabels are made of and how to work with them.

[@jeynebea6833]

Thank you for this amazing video!! I learned a lot!! Thankss!!!!!

[@dariyatukhmetova1172]

thank you, great tutorial. I recommend viewers to watch in 1.25 or 1.5 speed, otherwise you may sleep :)

[@abdevilliers7112]

Nice explanation

[@bashinifernando1659]

Thank you very much ❤

[@chankopi]

Thanks a Bunch........!! Great Video Tutoring.......!!

[@khannews1533]

Good 👍

[@danielnyaki1708]

Very detailed. Thank you

[@aysegocer3308]

Great 🙂

[@Jacobi111]

this is a great video

[@zoesingleton9459]

Thank you!

[@priyaks6562]

Ma'am, Thank you so much for this video 🙏

[@Nosha649]

It's really helpful vedio, thanks so much. To overcome unwanted voice, make it 1.5 X speed.

[@asd2417]

Thank you! This helped immensely =)

[@mridulboro7284]

It is really very helpful. Thank you mam

[@yujiepeng8960]

this is awsome!

[@sherbangash6523]

Thank you very much. Very nice explanation !!

[@hazellecelayos9418]

Yeah, I loved this video! But the microphone is WAY to close, it's very distracting.

[@dhananjaydas5934]

very good explanation mam.

[@panotkrukkratoke8765]

please do this with SO3 molucule pleaseeeeee

[@thihongquanvu565]

Thank you so much :)

[@26d8]

Thank you so much

[@pinkcrissy]

thank you :)

[@Dogasanatseyahat]

These videos were so useful that I managed to ignore the sounds coming from your mouth.

[@pamelamartinezgomez3974]

Is it possible to get fractional and negative numbers in irreducible representations?

[@melissagarrett2332]

If you do, it means it means there was an error made somewhere.

[@joseguilhermevieiramoura2693]

holy fuck, that is a good class indeed

[@madjiguenesarr224]

Comment on fait pour déterminer les fonctions

[@nehatunki3916]

Link for previous video?

[@CLASSIFIED414]

Thank you so much!!!!

[@herberthartl7383]

Thank you for the video. Maybe I haven't been listening close enough, but one question remains: You stated, the convention is that the highest fold axis of symmetry is aligned with the z-axis, while the x-axis is perpendicular to the plane of the molecules. In the example of the water-molecule, this would give us two options for the x-axis. Either it points into the "paper"-plane or out of it. In your case it points into the plane, which poses a left-handed coordinate system, if I am not mistaking. Is there a reason why to prefere a left-handed-system? It puzzles me, because in the most cases I was told to prefer a right-handed-system. Thanks ahead

[@oguzcanayakn2686]

thanks for real lesson, thanks a lot

[@RamyaRamya-og6ib]

Thank you.useful in the vedio my study

[@bboyHarrypotter]

This presentation is just all over the place...

[@qiaoliu1891]

When you calculate the irreducible representation for a different operation than C2, for example, C3 operation. Since it only rotates 60 degrees, do we count it as 1, -1 or 0?

[@missygarrett1338]

That is where you would use the cos (360/n); thus the Cos (360/60) = cos 6

[@alexdb2976]

Grazie mille

[@ArnoldSommerfeld]

"Polarization equals measure of ease": proof anybody can post on any topic even if they have no idea what they are talking about.

[@drjonte101]

life saver, thx :)

[@oguzakkasoglu]

Hi everyone, I need help. For sources like symmetry-obbertein, they find xz plane's value is 3 and yz value is 1. I did this method to 1,1 difluoromethylene but in these sites, they also changed xz plane's value with yz plane. Which one is true? This method is logical. I couldn't understand.

[@lpandey3236]

Hi Melissa, (On the last slide) I am not quite clear on what "Contribution per atom" implies (and therefore couldn't figure how those numbers were assigned for that line). Can you please shed some lights there?

[@barancel11]

+1 +1 -1 for every atom. for example by using xz sigma ve signifis x and z +1 and y -1 thats why the contribution is +1

[@-igor-]

Г is capital Gamma. The capital Lambda is like A without horizontal line

[@Kelas_koja]

Thaaaank u

[@yyc3491]

Thank you so much for your wonderful explanation! It's crystal clear. Do you know whether the same analysis could be applied to crystals rather than the simple molecule here? Thank you.

[@luanfranzon6558]

ty

[@persephonep9199]

you know the song how to save a life? cause you just did

[@caterina4657]

Thank you for sharing this video, it was clearly explained and very informative :D

[@anteater2536]

thank you so much Madam.

[@Vangoghbothears]

so much tongue in this video. I'm not sure if it's more parts seductive or more parts scary.

[@richandersen79]

HAHAHA

[@euroqueen5606]

I am Ukrainian-Canadian and I love your picture ^_*

[@the_cosmic_alexolotl2282]

fuck off dude she's making free educational videos on KZbin

[@bboyHarrypotter]

The order is only given by the number of classes when each class has only one element, which only occurs for Abelian groups. In general one needs to write down the order/cardinality of each class as well.

[@shamuelaandriani3429]

ramAn but not ramEn

[@dz-yo3un]

can u please drink a glass of water?

[@jqb6XD]

Me, an undergrad seeing that grad students learn this :/

[@freshanna17]

"gerade" xD

[@richardyang4001]

How I want to be there with this girl to tell her that you can do it, dont worry, it's okay, take your time

[@jadk4010]

This helped me go from completely confused and clueless to knowing it all. You saved me. Thank you 🥹

[@kjs498]

All these people commenting about her mouth have never heard of ASMR...

[@TheSourav77]

Hahaha, true lol

[@gunnarhendriks1797]

asmr meets science

[@jsk9447]

watch it at 1.5x speed, less spit more chem

[@jsk9447]

k never mind it's getting worse

[@hamedhosseini4938]

My ears got raped!