POINT GROUPS | Basics of Group Theory (Part-2)
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- Опубликовано: 8 сен 2024
- in this video we will discuss about the various point groups with lots of examples.
مجموعة نقطة
点组
點組
bodová skupina
groupe de points
Punktgruppe
ομάδα σημείων
gruppo di punti
ポイントグループ
точечная группа
گروه نقطه
grupo de pontos
punktgrupp
nokta grubu
точка групи
the best videos on RUclips for this topic so far! Thanks Man
U can explain everything in a simpler manner according to our level... Your explainations are crystal clear sir.... Tq u so much sir....keep uploading more videos for gate exam sir
Thank you so much 🥰
thank u sir ,please continue ur lectures on group theory ,no any other lectures have such a good explination thank u sir.....
supriya bodake, thank you 😊
Many thanks from America, helping a lot with my inorganic exam
today i come to know this dihedral plane....such a wonderfull explination sir thank u so much we all love u so much.....
sir,you are the master of group theory and continue as such in additional courses
great work my brother,.. you just save my one semester
no sir even though it is long it is not boring...so we like it
In our clg our teacher lecturd this chapter with 15 hrs,bt u within less than 2 hrs u cleared all dbts and made clr it❤️
Thank you very much for explaining so well. Your lectures are very helpful. Keep uploading.. keep up the good work.. thanks
Thank you
Tnx you sir..
Really appreciate your hard work for us ☺️☺️
Thank you for the lecture sir
Thank you soo much sir ..for uploading video...and help us to achieve success..
You're welcome 😊
Great video I found on group theory
Very extensive examples with good explanation, thank u very much. Also make vedio on application of group theory in vibrational, rotational spectroscopy
Sathish Kumar, yes sure, applications and questions will be discussed in upcoming videos, and thanks for the appreciation 😊
At 34.10 Small correction Noorul Huda Sir for Allenes there are only two planes which are two Sigma d but you said three are there and kindly explain Sigma d for Ethane because from how you shown there gives the impression of Sigma v element
Thanks a lot sir..... Very helpful.... Continue making more videos on other chemistry topics
You're welcome 😇
There are many other videos on the channel plz watch them. 👍
thanks a lot for the great work
Exceptionally good explanation👌 simple and great..
Very interesting but very typical...lot of energy required to get all in mind....amazing video u have uploaded...and very clear thought process u have....thanks alot
Thank you, ya it seems little typical but once you understand the basics rest will become clear.
I hope you liked the video, plz SUBSCRIBE and watch our other videos too. 😊😇
Thank you so much sir.. please do series of lectures on this topics..which are most important for NET exam
Alright 👍
Nice explanation sir thank you
thank you for such a good way of teaching sir
you're welcome :)
thanks a lot Sir ...from Pakistan
Vry nyc sir...
Thank you
Great teaching
Very nice explanation sir
Thans sir.
Thank you so much, Sir!
Nice explanation
Thank you 😊
Thanks a lot sir..stay blessed
i really appreciate your good work and charity for others. thank you soo much . Moreover i have some problems related to quantum chemistry. could you please help me in this regard!
Sir even 3d assumptions you made easy.
Sir, for C3 rotation in Dn group for that Ruthinium complex, your explanation has different structure than what had been drawn in the book. Which one is right ? Kindly reply me as I have an exam in a week. Pls.
Thanq so much sir........
You're welcome 😊
Thank you soooo much sir............
Good evening sir,i think allene has only 2 dihedral planes ? Please clarify my doubt
Hello sir, It was really great lecture, Thanks for uploading the vedieos. I have a small query, what is 5S6 element in staggered ethane of D3d point group
nice expalnation sir
Thank you so so so much
Thank you
You're welcome 😇
Thanks
Tq sir
thank you so much sir
thanks....
You're welcome
Hello sir my question is can we take the example of[ Ni(CN)4]2- in Cnh point group because it has one horizontal plane and 4 vertical planes and as you said first priority is given to the horizontal plane??
Sarjot Kaur,
Very nice question, yes you're right Ni(CN)4²¯ has a horizontal plane, but in the video I've also told that if molecule has Cn+nC2 Axis of rotation then point group changes from C to D. Therefore the point group here will be D4h not C4h
Thank you sir😀
You're welcome 😊
Hello sir in Dnd point group as you have given E, C2, 2C2, 2sigma d it will be fixed we have o remember all these conditions.
but how we came to know for which molecule you have to apply dn or dnd or C2 group?
I explained in the video too that if you have n fold axis, and also n C2 axis then it will become d,
for example if you have a c3 acxis and you also have 3c2 axis the altogether they become d3. Now whether it will be Dnd or Dnh, it depends on the plane. if you have only dihedral planes then dnd and if horizontal plane then Dnh. please watch the video carefully. I've explained all these things there.
ok thankyou so much for your reply sir...i got it
You're welcome 😇
Sir , dihedral and vertical plane me confusion hai. Please explain
How can I know that in which compound how many degrees of rotation taking place?
Hi sir ...Video is quite lengthy bt you explain it well.... thanks a lot
Will you plz recommend best book for group theory .... plz sir
clear explanation great lecture indeed! but sir I have one doubt in pcl3 you have written the point group as c3v but it also has a plane of symmetry (sigma h) since it is a planar molecule and its point group should be c3h then why it isn't written so?
No it is not a planar molecule it is like NH3 pyramidal structure
Thank u sir plz suggest good book for more understanding group theory
All 'Bout Chemistry tq sif
Is Sn operation also necessary to find out point group? For staggered ethane, the point group D3d can be decided only by symmetry aces as well as dihedral plane. If any molecule which doesn't perform Sn operation, can it be the Dnd point group?
What is the exact difference between total elements and total operations? While deriving point group you have written that separately.
Great video! which one is next? the one with solving the character table?
Sir can you please tell me the contribution of dihedral plane in methane molecule
Sir, allene will have 1- s4 element also, does it make any difference to the point group. Moreover at time 34.17 in the video you are explaining 3 sigma d plane, sir kindly refer website symmetry otterbein only 2 sigma d is there, we can also observe that there is no possibility of third sigma plane. Kindly explain correctly.
Point group determination of xenon tetraoxide
Sir will pocl3 have 2c3 ?c3 and c3² is possilble u have written only 1c3
Nh3 is c3v but Bcl3 is D3h I didn't understand this.... Pls explain me
Sir please explain the difference between total elements and operations in td point group
Sir please teach photochemistry in carbony compounds
alright
which book is best for this topic ........please sir tell me
sir please make next vedio we r wating for that
supriya bodake, sorry for the delay but these days I'm little busy with my research work, will be uploading next video as soon as I'll get some time.
Thank you so much sir😀
Sir if possible pls explain the topics using white board....
Alright 👍
Btw, I was also thinking for that and will arrange a white board soon.
Thanks for the suggestion 😊
Sir.. in the staggered ethane example.. how they could be 3sigmaD.. i mean they are perpendicular to the primary axis,so they should be SigmaV..
In case of staggered Ethan, the plane is passing parallel to principle Axis. Now the plane is dihedral not vertical, I've explained the difference in my other video on Basics of Group Theory. Plz watch it for detailed explanation.
All 'Bout Chemistry i have already seen that sir.. but i'm still confused.. how to differentiate between sigmaV and sigmaD
It's very difficult to explain with text but for instance you can think that sigma v is the plane parallel to principle Axis and which bisect the angle made by atoms and sigma d is dihedral plane which is also parallel to principle Axis but these will not bisect the angles made by atoms but they contains the atoms itself.
For square planar structure, principle Axis will be C4 and two sigma v will pass in between of the sides of square made by atoms and sigma d will pass through diagonal of square, that is they contains the atoms.
Okkk.. got it.. thankyou so much sir
That's good 👍
very comprehensive, informative and helpful video on group theory. thank you bro. but what about my little query I hope you know what about I am saying.
umendra khokhar, brother I'm sorry for the delay but these days I'm little busy with my research work, I'm not able to get time to read about that topic, but I'll try to do it soon.
ok bro, Good luck for your research work. I want to tell you that,I have visited many times your department of chemistry, university of Allahabad university. If I am not wrong you have completed your MSc from Allahabad university. I know many teachers of the department like Jagdamba singh, LDS yadav IR siddiqui RKP Singh Shekhar srivastava etc,
Yes brother, I've completed my M.Sc. there only and it's great that you know those teachers, they are legends in their own feilds 😊
Will sigma d plane always bisect the two consecutive C2 axis....?
how do you determine the number of planes there are possible?
Allene also have S4 axis.
Plse make video on questions also
Sir please upload thermodynamic lectures
Alright 👍
sir please upload previous years questions and guide me any book for group theory
Allene also posess S4 symmetry
Sir H2O molecule why you wrote sigmaXZ
Sir i have a doubt in POCl3 molecule. Why doesnt it contain horizontal plane
Is me like pyramidal shape ha to c3v point group
Wonderful work done
But i still couldnt understand dihedral plane 🙄
Bro one mistake. Allene has two dihedral plane not three
why N2H4 does n't have inversion symmetry
sir 28.55 time p agar hm C2 rotation lenge n3 and n4 kaise interconvert honge ,,wo to reflection m honge NAA Jo Apne Kia jai ,,, please ans
It's difficult to understand I know bcoz it's a 3D molecule and to explain on 2D plain it's difficult.
You can visit this link, here it may help you in understanding. Plz try to apply what I've explained and then check that whatever you are saying is that possible or not.
www.chemtube3d.com/Sym-Ru(en)3.html
Why BCl3 molecule doesnt have sigma d plane
Sr minimum kitne number pe JRF qualified hota h
Minimum 110-118 marks for general category to qualify JRF
sir {Ru(en)3}2- me molecular plane of symmetry nhi hogi kya? kyuki 4 nitrogen are on plane and one above plane and one below
No bcoz nitrogen are not individual, they are bonded with the other nitrogen through CH2-CH2 chain
+All 'Bout Chemistry ok thanks sir,, thanks for rply
You're welcome 😇
Sir, what is the Point Group of BF2+ ?
Sir group theory ki best book kaun si hai
I referred FA Cotton for Group Theory.
If you want a detailed analysis of which books to prefer for a particular topic.
Watch this video.
unacademy.com/lesson/recommended-books-for-physical-chemistry-with-details/NS0CLXJA/?source=Course
sir minimum kitne no. pe jrf hota ha ST category ma
check CSIR website, I think around 65-70 Marks, exactly i'm not sure about it.
Sir why you using pencil in dis video it creating difficulty
Send application and Raman and ir
Yes sure 👍
How XeF4 is planar
See the structure of it. In group theory we dont consider lone pairs so just see the atomic arrangement
group theory paper pr nhi arhi smjh m
Sr Kitna number minimum ayega to JRF qualified hoga
115 for GEN
Dear sir, you make your vedios extended by too much repeating words..
Usama Abid u UK
Sir why are you uploading vedio last 7 days
Sandeep Mainali,
sorry for the delay but these days I'm little busy with my research work, will be uploading next video as soon as I'll get some time.
please ans
oke?
Sir English me na bolkr Hindi me bolo toh shyd baccho ko jyda acche se smj aayega
Kyu ki English me aap clear ni kr pare sahi se
Sir your teaching is good👍 but your english is so poor...
Sir plz try to speak hindi
Boht e ganda smjhaya a apne
Pls improve your pronunciation your communication irritated you use word like this aaa