Loading...

11. Orbital Correction and Plum-Pudding Molecules

6,363 views

Loading...

Loading...

Transcript

The interactive transcript could not be loaded.

Loading...

Loading...

Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Uploaded on Sep 18, 2009

Freshman Organic Chemistry (CHEM 125)

The lecture opens with tricks ("Z-effective" and "Self Consistent Field") that allow one to correct approximately for the error in using orbitals that is due to electron repulsion. This error is hidden by naming it "correlation energy." Professor McBride introduces molecules by modifying J.J. Thomson's Plum-Pudding model of the atom to rationalize the form of molecular orbitals. There is a close analogy in form between the molecular orbitals of CH4 and NH3 and the atomic orbitals of neon, which has the same number of protons and neutrons. The underlying form due to kinetic energy is distorted by pulling protons out of the Ne nucleus to play the role of H atoms.

00:00 - Chapter 1. Introduction
01:53 - Chapter 2. Correcting for Electron Repulsion when Using Orbitals
15:26 - Chapter 3. Correlation Energy and the Limits of Orbital Theory
30:52 - Chapter 4. Kinetic Energy's Effects on the Shapes of Atomic Orbitals
40:32 - Chapter 5. Moving Nuclei to Distort "Electric Puddings": Case Studies with Methane and Ammonia

Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses

This course was recorded in Fall 2008.

  • Category

  • License

    • Standard YouTube License
Comments are disabled for this video.
When autoplay is enabled, a suggested video will automatically play next.

Up next


to add this to Watch Later

Add to

Loading playlists...