appreciable effort... it would be better if you start a series of short lectures upto 30 min in which you can describe each and every aspect of a particular topic. i am telling you this because i feel you have a good art of teaching.. of course that will take time but i think you should forget about the nearest exam and think about those who has to serve for long... descriptive topics make a person to gain real knowledge...
Thanks all about your vedios that I need more vedios about quantum chemistry. I am a student the physical chemistry at Kurdistan UUnivesity in Iran. Then I totally need a bout quantum chemistry. Please make a more vedio a bout quantum chemistry by numbering.
Hello sir. Generally, Slaters Determinant (the anti-symmetric wave function) is not the eigenfunction of the system. Example. Please suppose the system composed of two electrons. Electron 1 is in a hydrogen atom. Electron 2 is in a helium ion He+. rA, rB : the position of each nucleus. The two electrons are far enough. H1=(p1^2/2m)-(e^2/4πε0❘r1-rA❘), H2=(p2^2/2m)-(2e^2/4πε0❘r2-rB❘), H1φA(r1)=EAφA(r1), H2φB(r2)=EBφB(r2). Hartree productφA(r1)φB(r2) is the eigenfunction of operator H1+H2, and lead us the energy of the system EA+EB. But, another productφA(r2)φB(r1) is not the eigenfunction of operator H1+H2. (Please calculate it. It's very easy.) Therefore, the anti-symmetric wave function ψ=φA(r1)φB(r2)-φA(r2)φB(r1) is not the eigenfunction of the system.
Sir if we see the spin parts of the wave functions with spins ms = 0, we took the sum i. e. (Alpha 1beta 2 + beta 1 alpha 2), my question is why didn't we take the difference, i. e.( Alpha1beta2 - beta 1alpha2), because negative part is anti symmetric and positive part is symmetric and both are indistinguishable after finding their linear combination, which naturally gives a constructive and destructive wave function, constructive for plus spin part and destructive for minus spin part. So, being antisymmetric, the negative part was in a better position to be the answer, please clarify Sir?
Respected Sir, at 25:13 the selected term doesn't represent triplet state and you misunderstood ms=0 with (2S+1=0). Both are different. ms is related to orbital angular momentum where as 2S+1 is purely dependent on total spin of the electrons present in the system. According to me the correct ans should be c
appreciable effort...
it would be better if you start a series of short lectures upto 30 min in which you can describe each and every aspect of a particular topic.
i am telling you this because i feel you have a good art of teaching..
of course that will take time but i think you should forget about the nearest exam and think about those who has to serve for long...
descriptive topics make a person to gain real knowledge...
Thank you for this detailed feedback, I'll definitely try to work on this.
Provide lec. on variation and perturbation theorem
Thanks all about your vedios that I need more vedios about quantum chemistry.
I am a student the physical chemistry at Kurdistan UUnivesity in Iran.
Then I totally need a bout quantum chemistry.
Please make a more vedio a bout quantum chemistry by numbering.
Thank you so much sir.... Waiting for more videos for upcoming CSIR NET exam...
😊
I'm a physics student but this is very useful for me
Aab Jake samj aya....thnx a lot sir
Super.....
If u have time means, Go-ahead with variation theorem, perturbation....
Sure, I'll try to make videos on them too
Sir please upload more videos on Quantum Chemistry, Ionic Equilbria and Data analysis. Thanks a lot sir.
Ya sure I'll try to make videos on them too.
Really u r my god...
sir can you make a class on hydrogen atom and related questions of quantum mechanics. If you teach ,the difficult topic even become easy.
when we got where ms=0; so why we only add? why cant we subtract?
Thanks you. Plz make more video important for June net exam. I also follow in unacadmy.
very nice sir thankyou so much happy to see your lecture
What is the difference between Slater determinant and secular determinants?
Sir make a full video on quantum chemistry. Because most of organic students facing difficulties in this
22.30 why we cant subtract? it is also a solution??
Pls make video on huckel determinant and delocalisation energy..
Sir june 12 Question me addition kyu hua h substraction kyu ni hua???
Thank you. Clear 🙏🏻
Thank you sir
Kal k exam may slaters determinate ki ans kya hoga?
Hello sir. Generally, Slaters Determinant (the anti-symmetric wave function) is not the eigenfunction of the system.
Example. Please suppose the system composed of two electrons.
Electron 1 is in a hydrogen atom. Electron 2 is in a helium ion He+.
rA, rB : the position of each nucleus. The two electrons are far enough.
H1=(p1^2/2m)-(e^2/4πε0❘r1-rA❘), H2=(p2^2/2m)-(2e^2/4πε0❘r2-rB❘),
H1φA(r1)=EAφA(r1), H2φB(r2)=EBφB(r2).
Hartree productφA(r1)φB(r2) is the eigenfunction of operator H1+H2,
and lead us the energy of the system EA+EB.
But, another productφA(r2)φB(r1) is not the eigenfunction of operator H1+H2.
(Please calculate it. It's very easy.)
Therefore, the anti-symmetric wave function ψ=φA(r1)φB(r2)-φA(r2)φB(r1) is not the eigenfunction of the system.
sir plzzz mention important topics from quantum chemistry
Awesome..
Thanks sir
Make more video on quantum sir
Why option D even though it is symmetric.
Thanks sir ..☺
Welcome dear 😊
For the june12 ques why not opt b?
Sir plz upload more questions...
👌explanation sir
Please pass some references book...
at 21:55 in the first question as it is given ms=0 as well as triplet state it is confusing
Sir if we see the spin parts of the wave functions with spins ms = 0, we took the sum i. e. (Alpha 1beta 2 + beta 1 alpha 2), my question is why didn't we take the difference, i. e.( Alpha1beta2 - beta 1alpha2), because negative part is anti symmetric and positive part is symmetric and both are indistinguishable after finding their linear combination, which naturally gives a constructive and destructive wave function, constructive for plus spin part and destructive for minus spin part. So, being antisymmetric, the negative part was in a better position to be the answer, please clarify Sir?
Because orbital part is antisymmetric due to presence of one g and one u.. So over all u
@@akb0014 thank you I got it
Thank you sir☺️
Ms= 0 is in singlet state n sir
I too have the same question
Respected Sir, at 25:13 the selected term doesn't represent triplet state and you misunderstood ms=0 with (2S+1=0). Both are different. ms is related to orbital angular momentum where as 2S+1 is purely dependent on total spin of the electrons present in the system. According to me the correct ans should be c
Dear Sir, Can you please make video on main group elements.... Important topics. Thanks in advance.
Please tell me the expected cut off for CSIR NET dec 2018
Isme 25.15minute m hm subtraction wala combination kyu nhi le rhe,,,, please ans
My question is same, why not the subtraction part, because it is antisymmetric so it has more chance to be the answer