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Scott Simpson
United States
เข้าร่วมเมื่อ 2 ก.ย. 2019
This is a channel to discuss topics in chemistry and for the courses I teach at St. Bonaventure University. I teach physical chemistry, general chemistry, and inorganic chemistry. I hope this page helps you through your academic journey. I can be reached at ssimpson@sbu.edu if you have questions, comments, or would like to see other videos posted. I am happy to offer any chemistry help!
My name is Scott Simpson, Ph.D. and I am a professor of chemistry at St. Bonaventure University. If you have any questions I can be contacted at ssimpson@sbu.edu. I utilize computational chemistry in my research. My research webpage can be found here:
sites.google.com/view/simpson-research/home
My Reddit page can be found here:
www.reddit.com/user/DrScottSimpson
My name is Scott Simpson, Ph.D. and I am a professor of chemistry at St. Bonaventure University. If you have any questions I can be contacted at ssimpson@sbu.edu. I utilize computational chemistry in my research. My research webpage can be found here:
sites.google.com/view/simpson-research/home
My Reddit page can be found here:
www.reddit.com/user/DrScottSimpson
Solids & Surfaces: 2 Dimensional (2D) Hydrogen Square Lattice and Band Structure
In this lecture we discuss the 2D hydrogen lattice spaced in a square lattice. We also talk about special points and the band structure.
มุมมอง: 52
วีดีโอ
Solids & Surfaces: Jahn Teller Distortion and Peierls Distortion - Part2
มุมมอง 56หลายเดือนก่อน
Solids & Surfaces: Jahn Teller Distortion and Peierls Distortion - Part2
Solids & Surfaces: Jahn Teller Distortion and Peierls Distortion - Part1
มุมมอง 45หลายเดือนก่อน
A lecture about Jahn Teller distortions and Peierls Distortion. We talk about when a distortion will happen based upon band structure. This is part 1 of the lecture.
Solids & Surfaces: The Band Structure of A Unit Cell with Multiple Atoms - Folding Back the Bands
มุมมอง 51หลายเดือนก่อน
A lecture about how we sketch the band structure of a unit cell with multiple atoms.
Solids & Surfaces: Crystal Orbital Hamilton Populations (COHP)
มุมมอง 36หลายเดือนก่อน
A lecture about the crystal orbital Hamilton populations (COHP).
Solids & Surfaces: Crystal Orbital Overlap Population (COOP)
มุมมอง 89หลายเดือนก่อน
In this lecture we discuss what is the COOP and how it relates to the Density of States (DOS)
Solids & Surfaces: Mulliken Charge Partitioning Part 2
มุมมอง 46หลายเดือนก่อน
A lecture associated with partitioning charges in molecules utilizing the Mulliken charge partitioning.
Solids & Surfaces: Projected Density of States (PDOS)
มุมมอง 70หลายเดือนก่อน
In this lecture we discuss what the projected density of states (PDOS) are and how this can help us understand the chemistry occurring in solids.
Solids & Surfaces: Mulliken Charge Partitioning Part 1
มุมมอง 34หลายเดือนก่อน
A lecture associated with partitioning charges in molecules utilizing the Mulliken charge partitioning.
Solids & Surfaces: Density of States (DOS) and Band Structures - Part 2
มุมมอง 56หลายเดือนก่อน
Solids & Surfaces: Density of States (DOS) and Band Structures - Part 2
Solids & Surfaces: Density of States (DOS) and Band Structures - Part 1
มุมมอง 172หลายเดือนก่อน
In this lecture we discuss how to sketch the density of states (DOS) from the band structure.
Solids & Surfaces: Brillouin Zone
มุมมอง 74หลายเดือนก่อน
In this lecture we discuss what is the Brillouin Zone, and why we plot only certain values of k (the wavevector).
Solids & Surfaces: Square Planar Complex Band Structure
มุมมอง 57หลายเดือนก่อน
In the lecture we discuss a 1D chain of square planar PtL4 complexes.
Solids & Surfaces: Band Structures - Which way does the band run?
มุมมอง 66หลายเดือนก่อน
A lecture about how to determine which way a band will run in a band structure.
Solids & Surfaces: 1 Dimensional (1D) Hydrogen Chain - Part 3: Where are the Electrons/Fermi level
มุมมอง 48หลายเดือนก่อน
In this lecture we continue to discuss the 1D Hydrogen chain and where the electrons are in each band. We also discuss the Fermi energy/level.
Solids & Surfaces: The 1 Dimensional (1D) Hydrogen Chain - Part2: The Wavefunction/Bloch Functions
มุมมอง 53หลายเดือนก่อน
Solids & Surfaces: The 1 Dimensional (1D) Hydrogen Chain - Part2: The Wavefunction/Bloch Functions
Solids & Surfaces: The 1 Dimensional (1D) Hydrogen Chain - Part 1 - Setting up a 1D Crystal
มุมมอง 56หลายเดือนก่อน
Solids & Surfaces: The 1 Dimensional (1D) Hydrogen Chain - Part 1 - Setting up a 1D Crystal
Solids & Surfaces: Molecular Orbital (MO) Theory - Pauli Repulsion Between Occupied MOs
มุมมอง 68หลายเดือนก่อน
Solids & Surfaces: Molecular Orbital (MO) Theory - Pauli Repulsion Between Occupied MOs
Solids & Surfaces: Molecular Orbital (MO) Theory - Charge Transfer Between Molecules
มุมมอง 54หลายเดือนก่อน
Solids & Surfaces: Molecular Orbital (MO) Theory - Charge Transfer Between Molecules
Solids & Surfaces: Molecular Orbital Theory - Heteronuclear Diatomic Molecule
มุมมอง 64หลายเดือนก่อน
Solids & Surfaces: Molecular Orbital Theory - Heteronuclear Diatomic Molecule
Solids & Surfaces: Qualitative Molecular Orbital (MO) Theory Review Part 2
มุมมอง 312 หลายเดือนก่อน
Solids & Surfaces: Qualitative Molecular Orbital (MO) Theory Review Part 2
Solids & Surfaces: Qualitative Molecular Orbital (MO) Theory Review Part1
มุมมอง 162 หลายเดือนก่อน
Solids & Surfaces: Qualitative Molecular Orbital (MO) Theory Review Part1
Solids & Surfaces: Density Functional Theory Part 2
มุมมอง 202 หลายเดือนก่อน
Solids & Surfaces: Density Functional Theory Part 2
Solids & Surfaces: Density Functional Theory Part 1
มุมมอง 512 หลายเดือนก่อน
Solids & Surfaces: Density Functional Theory Part 1
Solids & Surfaces: Extended Hückel Theory Part 2
มุมมอง 262 หลายเดือนก่อน
Solids & Surfaces: Extended Hückel Theory Part 2
Solids & Surfaces: Extended Hückel Theory Part1
มุมมอง 582 หลายเดือนก่อน
Solids & Surfaces: Extended Hückel Theory Part1
Solids & Surfaces: Hückel Theory Part3
มุมมอง 332 หลายเดือนก่อน
Solids & Surfaces: Hückel Theory Part3
Solids & Surfaces: Hückel Theory Part2
มุมมอง 352 หลายเดือนก่อน
Solids & Surfaces: Hückel Theory Part2
Solids & Surfaces: Hückel Theory Part1
มุมมอง 582 หลายเดือนก่อน
Solids & Surfaces: Hückel Theory Part1
Solids & Surfaces: The Secular Equations and Finding a Wavefunction
มุมมอง 1172 หลายเดือนก่อน
Solids & Surfaces: The Secular Equations and Finding a Wavefunction
Hey sir, thanks for the video. I have a question: Is there any way to find the Lewis acids and bases without thinking about their molecular orbitals diagram?
The MO diagram is the best way, but there are other methods that can help. If thinking about it at the gen chem level, what has lone pairs (Lewis base) and what can accept lone pairs (Lewis acid). If you are in more advanced classes, what is a nucleophile and what is an electrophile is the way to go!
@@drscottsimpson thanks for helps. have a good day!
@@sakacibiri No problem! I hope it helps.
Sir r u teaching in cram school or in any university
A University. I am a professor at St. Bonaventure University.
he's so good at teaching. I'm doing this lab in high school and I needed this breakdown with details😭 thank you so much
Thank you for your kind words!
Don't understand your writing
I am sorry about that. Is there something I can clear up?
First
Cyclobutadiene represents a second order Jahn Teller distortion, not first order. That is to say at D4h symmetry the ground state is not electronically degenerate.
You are correct. I should have pointed that out better, but did not want to discuss 1st order or 2nd order (pseudo) Jahn-Teller distortions.
I was not first
thank you for the video professor! i wanted to ask how do we identify the miller plane for a rhombohedral unit cell
Those are somewhat harder but this primer can help. You have to scroll down quiet a bit. extrudesign.com/how-to-calculate-miller-indices-for-crystallographic-planes/
First
Love these videos
I hope they help.
First
I finally understand the side-flammeling turbo encabulator! Thanks!
I am not sure what you mean...
For better understanding
I am from India you suggest me best book for ug level physical chemistry ❤❤❤❤❤❤
I would suggest Physical Chemistry by Engel and Reid: www.amazon.com/Physical-Chemistry-3rd-Thomas-Engel/dp/032181200X
your charisma is off the charts ! Love this content !
Wow, thank you! I hope these lectures help!
Great explanation
Thanks! I hope it helped!
Best chem professor there is! Very clear explanation! 🙏🙏
Thanks. I hope It helps!
best
Thank you. I hope it helps!
This is an excellent compare-and-contrast explanation of both approximation models. Thank you!
Thanks a ton! I hope it helped!
@@drscottsimpson It definitely did!
Hi scoott can you teach high school chemistry please 😢 😢
Some of my general Chemistry videos would be appropriate for the high school level!
Awesome lectures! I have never seen lectures on quantum mechanics as brilliantly explained as these! Just phenomenal, thank you very much.
Thanks a ton! I really like quantum and my job! If you have ideas of other things you would like to see, please let me know!
@@drscottsimpson I was wondering if you can make any lessons on electromagnetism? Thank you for all your hard work and excellent vidoes! I am a huge fan!
I do not think I would be the best one for that one... Electromagnetism is more a physics type topic. Sorry!
thank you for amazing class. That's help my homework .I am grateful 🙂
I am glad it helped! Let me know if there is more topics you would like to see
u are amazing
Thanks! I hope these videos help. Please feel free to share them and let me know if there are topics you would like me to discuss!
Hello thank you for these videos! I was wondering if there was a physical chemistry textbook you would recommend to work alongside these lectures? Thanks!
Thanks! I honestly do not like any 1 book but I use 4 to 8 books. I suggest the following books: Physical Chemistry by David W. Ball Physical Chemistry by Atkins Physical Chemistry by Philip Reid and Thomas Engel. I like Reid and Engel's book the most but there are a lot of errors in the example questions... Maybe one day I will write my own book!
Thanks.
Anytime! I hope it helps. If there is another topic you would like to see, I can try my best to make something.
Cant thank you enough
This is enough! I hope it helps. Please share my videos with those you think it would help.
Loving it, tysm!
I am glad it is helpful!
Hi. How can I end up with this physics understanding level from highschool level. (3rd year Med student in love with physics) Anyways, I found your video nice and easy to follow. With Schrödlinger equation things starting to become less acessible, but not completely impossible to understand.
Honestly, I would check out biophysics or bioinformatics. There are a lot of careers associated with these fields of study in the US. What country are you in? And thank you for the praise!
@@drscottsimpson Unfortunately I am not from a country developed in this direction. I am from East Europe. Here u have 2 options for a safe career: computer science or med school. And as a med student, I am discovering that even with this pathway u can end up jobless. There are very very few jobs or engineering. And they are paid very very bad, if u have luck to find one. I mean... a person who has no superior studies can be paid way a lot better. Physics faculty also doesn't offer jobs. I made my research.
That is unfortunate! To really get at what is going on, you need to learn Calculus but once you have that, it is all downhill from there!
Hi! I think there's a mistake in your equation at 8:22 the equation is supposed to be -[A](k1+k-1) + k-1[A]o. But you had written [A](-k1+k-1) + k-1[A]o. It took me a while to actually see that. Thanks for the video! It's helping me understand my kinetics class :)
Thanks for catching this! You are right! I botched it. Once I figure out how to edit videos, I will put a comment in here.
ok but the chalk is too weak
To see?
hey scott, im curious about your shoulder strength and drawing on the chalk board?! i like your style of teaching and chalkboard notes. i can see that you have extremely powerful and endurance like characteristics of shoulder strength.... can you give me a detailed explanation of your comfort level and freaky genetics? thank you.
Haha! This has to be one of the weirdest comments I have ever received. Honestly, I do work out my shoulders with military presses 3 times a week and I used to be a long-distance swimmer, so I guess it is from that? Another weird thing is that according to 23andMe, I have more Neanderthal DNA than 99% of the people taking the genetic testing, so maybe it is because I am less evolved. My comfort level really comes from the love of the topic and the great interaction with students. I know I needed lectures like these to keep me on-task when I was a student, so I just model my lectures this way. Glad you are enjoying this!
i dont think this has much to do with chemistry, but im interested in the generations of stars. it is my understanding that our sun is a 3rd generation star. how different were the first 2 generations of stars as we know since the big bang, i have heard that stars forge heavier elements so how did the first 2 generations still look/act the same if it was completely different elements. thank you. -opeth
It is Chemistry related! I think it has to do more with the lifetime of the star and if stars hit each other. For example living stars spit out lighter elements (Hydrogen, helium, carbon), dying stars spit out heaven elements (calcium, nickel, etc.), stars colliding make even heavier elements (uranium, bismuth, etc.). My knowledge is very limited in this area and comes from a book called "Astrophysics for babies". I will ask my physicis friend, James Pientka, when I get to work later. Also here is this link to help new.nsf.gov/science-matters/stars-within-us
Thank you! I’m done my undergrad, but didn’t get to take as much chemistry as I wanted to. Your channel is such a fantastic find for me!
Thanks a ton! I hope it is helpful!
thank you
Any time!
How can enthalpy of reaction change with temperature, when the activation energy stays constant with temperature???!!! please help pleaaaaseee!??
The activation energy does not stay constant with temperature. It actually changes. Sometimes you assume it does not change.
Thanks professor for this great explanation, if i want to calculate the sigma MO energies in methane after i get the SALCs(symmetry adapted linear combination)for the irreducible representation T2 and A1 can i use Huckel Approximation?
That might not work well. Generally, Huckel calculations are only consider pi systems. Given that methane is not really in that category, it might not work out well.
@@drscottsimpsonthanks for replying ❤so then how can I solve the Hamiltonian matrix ?
@@NabaAlHakmani That one is a tough one. Usually via computers. However, I am not sure if you making any initial assumptions when developing your Hamiltonian matrix?
@@drscottsimpson hmm is there a specific computational tool that I can learn how to use it to give me the orbital energies corresponding to each irreducible representation?
Yes. Try WebMO@@NabaAlHakmani
great content!
I hope it helps!
Thank you Dr Scott, i am able to differentiate between dipole and molecular dipole moment
Great! I hope it helps and you take it with you in the future!
How can I do this safely at home with my kids. Please send instructions 😮
You cant
You would need a super conductor and access to liquid nitrogen. I highly suggest to not do this with kids.
very clear explanation. Good vid see you this fall
Can't wait!
Weeeeeeee
this is a masterpiece
Thank you!
Danke Dr. Simpson
Bitte Nele!
That intro gave me whiplash
😂 sorry the editing software I use is janky.
Thank you Dr. Simpson. My ACS will go well
I hope so!
Thank you sir, that was a great explanation.
Glad it was helpful!
nice
Thank you sir
Anytime!
Fantastic explanation. Thanks for sharing!
Glad it was helpful! Good luck in your studies!
for the equation e^ikna, how do you now what i is?
The i is the imaginary number (-1)^(1/2)