Difference between revisions of "PChem322 f20 w6"

Latest revision as of 15:59, 5 March 2021

...return to Chem 322 - home

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Mon, Mar 1, 2021

Return Exams

Sec 5.1, 5.2, 5.3 cont.

- Discussed box with non-infinite walls; consequences resulting --> new wavefunction, new energies (Fig 5.1/5.3/5.5).

- Eq 5.5 (box length), Figure 5.4, Table 5.1, and Eq. 5.6 were discussed previously and included on Exam 1 material.

Sec 5.4

- Informally discussed Fig 5.5 of overlapping "boxes" or in this case "wells."

- This Sec will be discussed more in lab demo using LEDs.

Weds, Mar 3, 2021

- Sec 5.1 topic...penetration depth (Fig 5.2)

Sec 5.5

Skim

Sec 5.6/5.7

Tunneling

- Fig 5.13

- Video: Principles of the STM (1:31 min)

(Note: Tunneling phenomenon; must have conductive surface.)

Constant height mode
Constant current mode

- AFM Principle- Basic Training

(Note: not a tunneling phenomenon, but discussed here because it generates similar STM data.)

Contact AFM

- destructive

- tip wear

Non-contact AFM/Tapping mode

- not destructive

- tip wear minimized

Sec 5.8/5.9

- Tunneling in chemical reactions

- Quantum Well and Quantum Dots

Thurs, Mar 4, 2021

LED Demonstration (Steve Distin guest lecturer)

Forward voltage/emission wavelength (color)

WebMO/Gaussian Project

H₂ Molecular Orbitals

- HF/6-31G(d), geo opt followed by second calc of Molecular Orbitals

N₂ Molecular Orbitals; video

- B3LYP/cc-pVDZ geo opt, then Molecular Orbitals

Ethane

- HF/6-31G(d) opt geo

- Molecular Orbitals/Electrostatic potential map

- then Coordinate Scan See example here #3

- Peptide Bond Coordinate Scan

Friday, Mar 5, 2021

Quantum Entanglement: Spooky Action at a Distance

@@ Line 3: / Line 3: @@
 [https://monmouthcollege.zoom.us/j/91985583503?pwd=Y2c3STRxV1c5UC9XN2s3QldjdGp6Zz09 Join Zoom Meeting]
 ==Mon, Mar 1, 2021==
+Return Exams
-===Section X.X===
+===Sec 5.1, 5.2, 5.3 cont.===
+:- Discussed box with non-infinite walls; consequences resulting --> new wavefunction, new energies (Fig 5.1/5.3/5.5).
+:- Eq 5.5 (box length), Figure 5.4, Table 5.1, and Eq. 5.6 were discussed previously and included on Exam 1 material.
+===Sec 5.4===
+:- Informally discussed Fig 5.5 of overlapping "boxes" or in this case "wells."
+:- This Sec will be discussed more in lab demo using LEDs.
 ==Weds, Mar 3, 2021==
+:- Sec 5.1 topic...penetration depth (Fig 5.2)
+===Sec 5.5===
+Skim
+===Sec 5.6/5.7===
+Tunneling
+:- Fig 5.13
+:- [https://youtu.be/P4ywnN0htQI Video: Principles of the STM (1:31 min)]
+:(''Note: Tunneling phenomenon; must have conductive surface.)''
+::* Constant height mode
+::* Constant current mode
+:- [https://youtu.be/s6KqJS1GZNE AFM Principle- Basic Training]
+:(''Note: not a tunneling phenomenon, but discussed here because it generates similar STM data.'')
+::* Contact AFM
+:::- destructive
+:::- tip wear
+::* Non-contact AFM/Tapping mode
+:::- not destructive
+:::- tip wear minimized
+===Sec 5.8/5.9===
+:- Tunneling in chemical reactions
+:- [https://youtu.be/z7aqJpKfPC0 Quantum Well and Quantum Dots]
 ==Thurs, Mar 4, 2021==
+===LED Demonstration (Steve Distin guest lecturer)===
+:* Forward voltage/emission wavelength (color)
+===WebMO/Gaussian Project===
+:* H<sub>2</sub> Molecular Orbitals
+::- HF/6-31G(d), geo opt followed by second calc of Molecular Orbitals
+:* N<sub>2</sub> Molecular Orbitals; [https://youtu.be/5OnGlmQDIlE video]
+::- B3LYP/cc-pVDZ geo opt, then Molecular Orbitals
+::[[File:N2_molecular_orbitals.gif|300px]]
+:* Ethane
+::- HF/6-31G(d) opt geo
+::- Molecular Orbitals/Electrostatic potential map
+::[[File:Screen Shot 2021-03-04 at 5.34.15 PM.png|300px]]
+::- then Coordinate Scan [[Media:Lab1_WebMO.pdf|See example here #3]]
+::[[File:Screen Shot 2021-03-04 at 5.31.33 PM.png|300px]]
+::- Peptide Bond Coordinate Scan
+::[[File:Screen Shot 2021-03-04 at 5.36.41 PM.png|300px]]
 ==Friday, Mar 5, 2021==
+[https://youtu.be/JFozGfxmi8A Quantum Entanglement: Spooky Action at a Distance]