Symmetry elements and operations

[@niveoIe]

4 days from finals, 2 months of confusion solved from a 40 minute video. Thank you, bless you!

[@alkylpug]

Thank you so much for speaking slowly!! This is my first time learning about this topic and your relaxed pace of talking helps A LOT.

[@debbiehariette6335]

Fantastic video, clear, concise, made this subject much more understandable. Thank you, sir!

[@ChemWis]

Glad it was helpful!

[@amanuelyadessa3195]

Good 👍

[@listentome349]

Thank you! This helps me a lot to digest what I read in books.

[@ChemWis]

Glad it was helpful!

[@draftpunk6022]

@@ChemWis sir plse provide this ppt...it would be a great help

[@dannyreeder9468]

"for the sake of better understanding" I did indeed understand better, thank you for the many examples.

[@ChemWis]

Glad it was helpful

[@wisam3497]

Excellent presentation of the topic with examples everywhere, thank you much sir!

[@tammy0180]

The video makes me understand much more vs. reading the book. Thank you!

[@ChemWis]

Thanks for watching! I have also uploaded video on point group. There are many more videos related to different topics like stereochemistry, pericyclic reactions, name reactions, coordination chemistry. I have organized them in different folders in playlist of my channel. If you are interested in those topics you can go through them.

[@Vishwanshirajput]

Thank u so mach for sach a genius explanation It's set on my mind

[@ChemWis]

Thanks for watching!

[@greenlife7943]

very helpful😊.... thanku so much sir

[@ChemWis]

Most welcome

[@ElveraViljoen]

Thank you. I will recommend your video to my students.

[@donn1297]

Thank u so much for your great videos! I was really losted in class, watching your vids make everything much more easier to understand !!:)

[@ChemWis]

You are so welcome!

[@RaselShorts75]

Thank you sir from Bangladesh 🇧🇩

[@Life_inHope]

Thank u thank u thank u so so much sir....., Please sir continue teaching.... , Sir bhot aachhe se aa gya ye topic.... , Ab thank u so much❣️🙏🙏😊😊❣️❣️❣️❣️❣️

[@sabirzaman6460]

love the way you are teaching

[@ChemWis]

Glad to hear that

[@pranavkv9313]

It's really helpfull

[@ranjimajayaraj5674]

Pranavettan uyirrr🔥

[@aryaadinesh]

Class kandillenkilum comment idum 😂

[@athiraav9151]

Ho ijjathi💥

[@athiraav9151]

@@mahibabu3152 mahi setten pever💥

[@sukhmanpreetsinghsandhub2042]

awesome video very helpful , thank you so much.

[@TitanIMLS]

Sir, whats the name of the Program u use to draw?

[@fraz69]

Best presentation ever ❤

[@ChemWis]

Thanks for your complements!

[@khawarabbas6027]

Very much grateful for this

[@iuliiamairansaeva9169]

Outstanding video! Thank you so much!

[@wardajahangir1261]

Mind blowing... explanation.....it makes my day.. Thanks

[@ChemWis]

It's my pleasure

[@younicekeepgoing9373]

Do you have pdf version of these slides so I can download and print it?

[@lawyervibes]

Thank you sir.you remove my stress

[@devarajuppuluri501]

Superb explanation

[@rodriguesissandemba6431]

Thanks Sir, but I have a question why which NH3 we can't get an axe of rotation that pass between the N-H liason?

[@chinthakawishwanath2062]

Clearly understand. Thank you

[@huynhvantram130]

it's very hopeful for me, thanks you.

[@ChemWis]

You're welcome 😊

[@humnasarmad5276]

How do you know when and how to draw C2 or c3 axis on any structure?

[@warizoduola564]

Exactly, I have a problem getting that too Do you know yet?

[@JohnDoe-pk5ev]

at 14:21 how did you know it was gonna be C3(4 of them) passing through? Why not C2 ?

[@mannmoviereview]

But, how are you ginving names like C2, C3 C4? I mean on what baisi?

[@Maryam_Khalid_g6i]

On the basis of after how much rotation it gains the original orientation For C2 = 360/2= 180 After 2 rotation of 180 It comes to original shape

[@111loa4]

Very easy to understood .....

[@wendewows1743]

For the example at 14:58, I don't get why there are only 3 C2, why do you only cut between H1 and H2, H3 and H4, why not also between H2 and H3, H3 and H4, and H2 and H4.

[@rithik3871]

Cause when you cut through the other bonds you automatically cut through the alternative bonds too For example H1 and H2 bond cuts through H3 and H4 bond I hope it helps

[@rahulsawant5616]

Nice video 🔥🔥

[@humnasarmad5276]

Why benzene has 1 C6 axis although it has to rotate 6 time to have original configuration? It should have 6 C6 axis.?

[@FatieHA9811]

so clear explination ... thank you so much you helped me alot

[@ChemWis]

Glad it helped!

[@mariyappillaiv5262]

Nice explanation sir How to teach online class Give tips

[@jojiekimara3362]

Thank You very much

[@Adelegn-d7f]

How can we determine n?

[@PritomAhad]

At 17:32, you said 5 C2 axis ? That means at five axis, 180 degree rotation will yield equivalent structure. Nd C4 means, 90 degree rotation will yield equivalent structure?

[@arumairajputhirasigamani2907]

yes

[@eedibillisrivalli7345]

How are you saying whether that is C2 or C3

[@sprajasingh]

A molecule can have more than one symmetry axis, the one with the highest n is the principal axis. If a molecule has both C2 (180 rotation) and C3 (120 rotation) 360/n

[@filiprc3030]

Great video !

[@ChemWis]

Thank you for watching!

[@manojkarki2527]

Nicely delivered. thank you

[@liaqatshah4371]

So nice explaination thanks sir

[@theessentialist6813]

I searched in google and CH3CH3 does not have any sigma d mirror plane. minute 28:53 of the video. I DON'T UNDERSTAND.

[@ChemWis]

Eclipsed form of CH3CH3 has sigma plane while staggered does not

[@prshprsh5707]

thanks a lot sir..

[@jamunayadaw8161]

Thanks you so much sir for teach

[@Leezay-ue4rk]

Stil i can't understand it im gonna cry now thus symmetry js so messing up my mind plzz help 😢😢😢😢😢😢

[@kakandesimonsimon5895]

Understanding was not compulsory, not every movie we watch we understand them bro.this is inception

[@himashalakmalhbm5744]

Thank u sir u explained very q

[@shashikadilakshana1928]

Thank you ❤

[@ChemWis]

You're welcome 😊

[@111loa4]

Thank u for the information

[@m4panda077]

nice bro

[@ChemWis]

Thanks

[@saadmmcsoud1596]

I love you man

[@Ayshaalshamsi-j1o]

thank you for saving my life

[@ChemWis]

Most welcome!

[@NuR-fv5by]

hum kyse jane,kishka 120° or kishka 180° hongi?

[@celestepereira9601]

Nice one

[@ChemWis]

Thanks for watching

[@juwelhossain6643]

I need a video which define clearly motive and lattice,,,

[@dayanaramli7079]

is it supposed to rotate it anticlockwise for Cn?

[@rafiqulislam-ej1qt]

Asalamuliakum sister, i m from Bangladesh

[@nikitasharma2962]

Abhi tak kanhi samjh ni aaya tha.. apse shuruaat ki mene MSC ki... Nice explanation... Can I have your number?

[@kadamanand304]

Sir please make a play list of ths make helpful

[@ChemWis]

I have already created the playlist

[@vishalmaurya-wx5cu]

Thank you sir

[@ChemWis]

Welcome

[@janfayeebojo9718]

Thank you sir😍

[@111loa4]

Make the video a little bit faster

[@martinman3073]

Sorry but how is it C2 for methane at 14:48

[@niveoIe]

in order to obtain the an orientation indistinguishable from the original upon rotation, the bottom two H that are on the same plane must be rotated by 180 in order to stay on the plane.

[@martinman3073]

@@niveoIe you life saver x

[@dawitdarcha5662]

bro please please please tel me how do i make video like u

[@gipsonwahengbam7574]

thanks

[@yayraagbo4946]

thank u very much sir

[@ChemWis]

Welcome!

[@111loa4]

Where u from

[@ChemWis]

Basically, I am from Mirzapur district, UP, India. Currently I am living in NOIDA.

[@Maryam_Khalid_g6i]

Video should be 3D for such topics 😢

[@mohammadissa327]

Why ammonia don’t have a horizantal mirror(sigma h) ??

[@ChemWis]

Because of pyramidal structure of Ammonia

[@BACKAYDIGANS]

very good

[@ChemWis]

Thank you!

[@nursapaakbar7065]

Very informative, man. Thnak you!

[@ChemWis]

My pleasure!

[@rashib4350]

fantastic!

[@ChemWis]

Thanks!

[@mamogirma3817]

Thanku sir

[@mithu-kg7si]

🎉

[@bassomalife6502]

Bech 3raftouh hendy

[@russelllane6058]

HELLO FRIENDS !!!!

[@JitendraSahu-bp3pp]

Please make a video cn point group

[@ChemWis]

I have made a separate video for symmetry point group in which I have discussed Cn point group. Please refer below link for the same. kzbin.info/www/bejne/hXe4cqSMhdtmoZI

[@channeld7166]

The rotation is quite confusing but thanks anyway

[@yavarnasrinivas]

Tq sir

[@ChemWis]

Welcome

[@rafiashoaib7758]

Aik strepsil hi kha leni thi🙄

[@draftpunk6022]

Sir plse provide this ppt 🙏🙏🙏

[@santoshnayak3586]

Thank You, Sir

[@thetorque5459]

Can u please speak faster in ur videos??

[@rsp1482]

just play the video faster

[@amodkumar2712]

Sir Most humbly and respectfully I have to State that I have some problems in group theory 1) what is reducible representation of cis butadiene 2) what is reducible representation of Trans butadiene Kindly sir help me immediately on my email.

[@ChemWis]

I am giving you the hint. The irreducible representation for all the molecules belonging to a particular point group remains the same. Cis-butadiene belongs to C2V point group (which is the point group of water) and trans-butadiene belongs to C2h (which is the point group of trans -1,2-dichloroethylene). So, the irreducible representation of cis-butadiene will be the irreducible representation of water and irreducible representation of trans-butadiene will be the irreducible representation of trans -1,2-dichloroethylene or any molecule belonging to C2h point group.

[@maharaj8360]

Telugu explain the video

[@omolojuoyinkansola8198]

sir i didn't understand

[@xuxa3151]

és o rei crlll ja me safaste qf1

[@chetanparab242]

My teacher sucks

[@rinkishsultana]

Ur speech too slow

[@kanhaiyamane4680]

Thank u sir

[@JitendraSahu-bp3pp]

Thanku sir