hello ma'am ,this is Srabani Dutta..i m learning group theory from your videos in this lockdown period in my pc..my father who has a non -chemistry background was watching your video along with me and he got so much impressed with your teaching.. he really praised you.. i'm utterly grateful to u
Your efforts to teach point group theory is marvelous. It is not easy task. All points are imaginary in point group. I am Professor of Organic Chemistry & I know what problems come to teach this topic. One more thing: to explain Dnd point group you should take Newman projection of ethane molecules instead of Sawhorse projection. Newman projection explains all the things related to Dnd point group. Whether it is dihedral angle or Cn/ POS. Overall your efforts are appreciable to learn point groups.
If We wants to see point group in linear molecules then first see whether the molecule have inversion centre ??..... If yes then D(infinity h) If not then C ( infinity V).
Mam co2 main aapne c2 ko principal aixs mana h jo ki C infinity hona chaiye and incase of cos aap kah rahe h ki C infinity will be princiapl axis clear nhi hua..
In the example of ethane, when we use staggered conformation and eclipsed conformation,both will give different results. You used staggered here . But we'll get one C3 axis of rotation (alongx) and one C2 axis of rotation (along z) . IS THIS DATA CORRECT OR THERE IS ANY OTHER AXIS IN ADDITION .???
Mam apne Co(en)3 ke example me three N ko BF3 ke jese assume Kiya h but a esa kese ho sakta h ek N to axial bond par h or baki ke 2 N equitorial position par h matlab ek N ka plane dusra h baki bache hue 2 N ka plane dusra h or BF3 me to tino atoms ek hi plane me hote h kindly request you to solve the problem.
Good way of explanation. You Tried your best . Appreciated 👍 But so many times u give wrong examples then u Erase then chaged the examples. Please try to teach with little clarification I get confused 😕
Thank you very much mam Thanks a lot mam you explained best and I understand very well mam You are the best mam teaching the the topic from basics explain very well mam Thank you very much mam again specially Hindi me explain karne kelie 😊
Hi... First of all I would like to Thank u from the bottom of my heart, I am learning group theory from the very beginning and ur videos are helping me like Miracle... Secondly, on the basis of all the previous videos H3BO4 Must have C3h Point group as sigma h is possible in it plz have a look!! Andd Thank u againnnn❤
Mam why We ignore lone Pairs While finding out C infinity V or D infinity h point group or else we do not bother about lone pair anytime during point group determination .please Mam tell Me what is the reason behind that
Mam hocl me toh sigma h present hai toh point group cs kaise hua??? Agar kisi molecule main c1 aur sigma h present hai tab point group kya hoga??? Plz mam tell me
Sigma h is basically the plane perpendicular to principle axis. If there is no Cn axis present in molecule except C1 ....like in HOCl, we call it molecular plane (a plane passing through all the atoms of a molecule) So a molecule having C1 and a molecular plane will have Cs point group
Main ek aur doubt tha Agar improper axis find karni ho toh principal axis or subsidiary axis me se kaunsi axis consider karne ki????Aapki trick use karne main
Ma'am I'm studying in MSC chemistry previous year. My annual exams are near. Please suggest me from where can I get all subject notes PDF. I just purchased parth solved papers and watching your videos. But How to write an proper answer thatswhy I need for notes.Suggest me online link to download books or notes in pdf.
In linear molecule O=C=S how is C ♾️ present??? Bcz when we paas the axis there will be no symmetry cause both the atoms re different.....if anyone knows the answer plzz reply...
mam i wanted to know from which i should read this chapter for making notes of university exams. i am prsuing masters from panjab university. i'll be thankful if you will help me in this. ( the book i should follow for group theory)
It is not clear Can't you make through a ball and stick model for better understanding..... Why I'm telling you is as you have taken once staggered or eclipsed form of ethane we couldn't understand that....
Mam why u r saying that there is not any sigma v (plane of symmetry) present in H3PO4 .?what happened if we Orient all OH BOND in similar direction?so that thay can be mirror image.. pls explain..
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hello ma'am ,this is Srabani Dutta..i m learning group theory from your videos in this lockdown period in my pc..my father who has a non -chemistry background was watching your video along with me and he got so much impressed with your teaching.. he really praised you.. i'm utterly grateful to u
Thank you so much ma'am. Kamaal ka teaching hai. Koi b samaj jayega jis trah se smjate hai aap. Lucky feel krr RHA hu apka video pakrr ma'am.
Your efforts to teach point group theory is marvelous. It is not easy task. All points are imaginary in point group. I am Professor of Organic Chemistry & I know what problems come to teach this topic. One more thing: to explain Dnd point group you should take Newman projection of ethane molecules instead of Sawhorse projection. Newman projection explains all the things related to Dnd point group. Whether it is dihedral angle or Cn/ POS. Overall your efforts are appreciable to learn point groups.
Thank you so much mam .......You are a boon for all the chemistry students ..........
Great effort by you ma'am. lot of respect from Pakistan.
Mam ab tak point group sab samaj me aa rha hi.. Bus exam me bhi aa jaye.... Excellent teaching style.. God bless you
Mam your teaching explanation is unique. Thank you mam .❤
Thank you very much. The most amazing teacher that I have ever seen. Must watch videos!!! Love these!!!
Thank u so much Jyoti mam bht hi zayada acha padhte ho aaaap ko bhi samjh jaye.....u r amazing 😍 teacher
If We wants to see point group in linear molecules then first see whether the molecule have inversion centre ??..... If yes then D(infinity h)
If not then C ( infinity V).
Mam, H2O2 is not a planr molecule and it is open bool like structure and Sigma( P.O.S) is not possible mam.. kindly please correct it.
Mam please start classes for MSc physical chemistry . If u will teach physical chemistry then definitely i can do better .
Mam co2 main aapne c2 ko principal aixs mana h jo ki C infinity hona chaiye and incase of cos aap kah rahe h ki C infinity will be princiapl axis clear nhi hua..
When we considered ethane in Newman projection then it may be shows c6 plane of the symmetry so how I calculate plne of symmetry
Ethane ka sigma h kyun nahi hai samaj nahi aaya mam pls clarify
Wonderful✨😍 mam
In the example of ethane, when we use staggered conformation and eclipsed conformation,both will give different results. You used staggered here . But we'll get one C3 axis of rotation (alongx) and one C2 axis of rotation (along z) . IS THIS DATA CORRECT OR THERE IS ANY OTHER AXIS IN ADDITION .???
Staggered ethane is D3d. Eclipsed ethane is D3h because sigma h is present.
There is 1 C3 axis and 3 C3 axis in both.
Great ways of teaching mam'm
Thank you mam to making such a good start to by my day
Loved learning from you. Maam plz upload more topics of physical chemistry
Mam apne Co(en)3 ke example me three N ko BF3 ke jese assume Kiya h but a esa kese ho sakta h ek N to axial bond par h or baki ke 2 N equitorial position par h matlab ek N ka plane dusra h baki bache hue 2 N ka plane dusra h or BF3 me to tino atoms ek hi plane me hote h kindly request you to solve the problem.
I was searching if someone have my dout....I don't think she is ryt about coen3 2+
In staggered ethane ,when we passing a plane I can see as a perpendicular to principal c3 axis ...why it not considered as horizontal plane
Yes... Same question
1,2 dichloro-1,2 difluoroethane (staggered) is the example of Ci point group
Very very good teaching 🙂
Mam in case of o=c=s you pass subsidiary axis parallel to principal axis but you said tgat subsidiary axis is always perpendicular to principal axis
U r awesome Maam.. your vdos are really very good to understand completely.. please upload vdo on mossbouer spectroscopy
Mam ji first time pdega na to nhi samjh me ayega but Apne bhaut achha try kiya coz topic hi aisa hai..
Madam keep it up good job.....
Mam in Co(en)3 example there is jtd so question is will it affect our point group?
Good way of explanation. You Tried your best . Appreciated 👍
But so many times u give wrong examples then u Erase then chaged the examples. Please try to teach with little clarification I get confused 😕
Thank you very much mam
Thanks a lot mam you explained best and I understand very well mam
You are the best mam teaching the the topic from basics explain very well mam
Thank you very much mam again specially Hindi me explain karne kelie 😊
Hi... First of all I would like to Thank u from the bottom of my heart, I am learning group theory from the very beginning and ur videos are helping me like Miracle... Secondly, on the basis of all the previous videos H3BO4 Must have C3h Point group as sigma h is possible in it plz have a look!! Andd Thank u againnnn❤
Mam, Cl-CH2-CH2-Cl to planar molecule nhi hai ..to isme plane of symmetry kaise ho skta hai xz direction me??
plane of symmetry to har symmetric molecule me hota hai..
U are inspiration.
Thank you so much for making the video
Yes mam..smj AA RHA hai..thank u so much
Hii mam I don't understand the concept of horizontal plane how you passed in it
hello mam..really your videos are very helpful,you teach in the best way..😘
clear and very gd expaination.thanx mam a lot
in c2h4cl2 u said there was sigma h plane of symmetry then y isn't it present in c2h6??
Thankyou for your hardwork
Mam why We ignore lone Pairs While finding out C infinity V or D infinity h point group or else we do not bother about lone pair anytime during point group determination .please Mam tell Me what is the reason behind that
ma'am I got confused to get point group of Allene... can plz explain
Thank you so much ma'am
Thank you mam
Is Trans dibromo ethylene example of ci point group? Am I right or wrong?
Mam jii BHU msc entrance exam ke liye kitna lecture pdhe group theory ka plz mam bta dijiye plz
Thank u mam 🙏💕😌🙏😌🙏😌🙏😌🙏😌🙏😌🙏😌🙏😌🙏😌🙏😌🙏
Mam j chemistry app kaise chlega ...mne account bna liya hein us pr...plz jrur btana
Mam g hmy kisi b molecule ma kesy pta chaly ga k is ma sigma h present ha ya ni muje is ma confusion ha😢😢
Mam group theory m plzz reducible and ir reducible representation bhi krana
Mam plz btana isme vertical symmetry absent kaise h
Mam hocl me toh sigma h present hai toh point group cs kaise hua???
Agar kisi molecule main c1 aur sigma h present hai tab point group kya hoga???
Plz mam tell me
Sigma h is basically the plane perpendicular to principle axis.
If there is no Cn axis present in molecule except C1 ....like in HOCl, we call it molecular plane (a plane passing through all the atoms of a molecule)
So a molecule having C1 and a molecular plane will have Cs point group
@@JChemistry thank you so much mam
Doubt clear ho gya
Main ek aur doubt tha
Agar improper axis find karni ho toh principal axis or subsidiary axis me se kaunsi axis consider karne ki????Aapki trick use karne main
Ma'am I'm studying in MSC chemistry previous year. My annual exams are near. Please suggest me from where can I get all subject notes PDF. I just purchased parth solved papers and watching your videos. But How to write an proper answer thatswhy I need for notes.Suggest me online link to download books or notes in pdf.
Half chair form and twist boat form of cyclohexane ka point group kya hota he?????????????????????🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔
Mam...OHCl is not planar because hybridization of O is SP3...can it really possible to think about sigma plane
Draw the lone pairs of oxygen and then pass a plane bisecting H , O and Cl ; and reflecting lone pairs
Mam..thanks a lot...mam this video is also too much useful...u r a great teacher...Mahadev will always bless u..respect and love from assam
Thnk u..mam
You confused me very much at past, but all others videos are better.
Thank you ma'am 😍😍
In linear molecule O=C=S how is C ♾️ present??? Bcz when we paas the axis there will be no symmetry cause both the atoms re different.....if anyone knows the answer plzz reply...
mam i wanted to know from which i should read this chapter for making notes of university exams. i am prsuing masters from panjab university. i'll be thankful if you will help me in this. ( the book i should follow for group theory)
Any example of c4h point group?
Hi mam i want to join your coaching class for the preparation of csir net exam.
How can I contact you ?
Any rule to arrange symmetry operations in sequence?
Jyothi could you please tell me the point group of but-2-yne...!
H3C-C triple bond C-CH3
Linear symmetrical molecule ... therefore , D infinity h
what is the point group of ethane in staggerd and eclipsed form??? this question was asked in ts set 2018...pls mam ans my question
Staggered -D3d and eclipsed -D3h.
@@krish.bhashyam tq
Mam , what is the difference between molecular plane & horizontal plane ??
Molecular axis principle axis and horizontal is perpendicular to it
Mam octahedral and tetrahedral ka point group ki video bnao please
Thank you so much maam
Can you suggest me a book for group theory
Ci ka example:- 1,2 dichloro 1,2 difluoro ethane (staggered anti)
What is the symmetry element of boric acid?
mam, S3,S4 or i(COI) or sigam h me number of unshited atom nikalane me problem as rahi he.plz explain it in next vidio
Mam do BF3 contain sigma d plane.... One plane passing through F and B is bisection two C2 axis
No,because it has sigma h present ,so it is called as sigma v ,not sigma d.If sigma h wouldn't present ,then sigma v =sigma d
Hydrazine belong to which symmetry element C2 E any other?
What is the point group of ceiling fan???
C3
Isn't it D3h?? ( I'm comparing this structure with BF3.)
Thanks Maam
example for ci is ptcl4
Maam bus ak he inquiry hai sound thoda clear kar do baki sab mast hai
Thanks you mam surface start kar dijiya
gud video
M'am jab principal axis dekhni hoti h to axis atom se pass hona zruri hoti h to 6:49 mei hum Molecule mei C2 axis kaise pass kr sakte h
Aisa koi rule nahi hai ki principle axis atom se paas karegi hamesha ...the rule is ...axis of Symmetry should pass symmetrically through the molecule
Mam please pura group chemistry ke video banaiye ga please
Plz make videos in English madem...it's very difficult to understand Hindi for non Hindi speaking people like me
Miss, the video and the caption/video name doesn't match??????
Yes ..I did it by mistake
Thanks :)
I've done the corrections !
Thanks
All is well but please keep rate of speech bit slow. One more thing if you are talking about one particular do not jump to other example suddenly...
It will be better if you explain in English
👍🔥
👍👍
❤️❤️❤️👏
Pls photokem upload kr do..
It is not clear
Can't you make through a ball and stick model for better understanding.....
Why I'm telling you is as you have taken once staggered or eclipsed form of ethane we couldn't understand that....
Mam, jb apko job mil jaye to plz live class dijiye.mam plz
Mam why u r saying that there is not any sigma v (plane of symmetry) present in H3PO4 .?what happened if we Orient all OH BOND in similar direction?so that thay can be mirror image.. pls explain..
I'll explain this in today's video
Thoda confusion aa rha hai
Very difficult to understand for non Hindi speaking people...plz made videos in English only
C3v point gp.Sn
thanku so much madam
Thank u so much mam🙏