Chem 131A. Lec 17. Quantum Principles: Approximation Methods: Variational Principle, Atomic Units

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UCI Chem 131A Quantum Principles (Winter 2014) Lec 17. Quantum Principles -- Approximation Methods: Variational Principle, Atomic Units -- View the complete course: http://ocw.uci.edu/courses/chem_131a_quantum_principles.html Instructor: A.J. Shaka, Ph.D License: Creative Commons BY-NC-SA Terms of Use: http://ocw.uci.edu/info. More courses at http://ocw.uci.edu Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Quantum Principles (Chem 131A) is part of OpenChem: http://ocw.uci.edu/collections/open_chemistry.html This video is part of a 28-lecture undergraduate-level course titled "Quantum Principles" taught at UC Irvine by A.J. Shaka, Ph.D. Recorded on February 18, 2014. Index of Topics: 0:55 Symmetry 2:23 Orthogonality 5:53 The Variational Principle 23:17 Atomic Units 31:31 Practice Problem 23 34:25 Notation 37:29 Hydride Anion, Try #1 Required attribution: Shaka, A.J. Quantum Principles 131A (UCI OpenCourseWare: University of California, Irvine), http://ocw.uci.edu/courses/chem_131a_quantum_principles.html. [Access date]. License: Creative Commons Attribution-ShareAlike 3.0 United States License. (http://creativecommons.org/licenses/by-sa/3.0/us/deed.en_US).