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5.80 Small-Molecule Spectroscopy and Dynamics

5.80 Small-Molecule Spectroscopy and Dynamics (Fall 2008, MIT OCW). Instructor: Professor Robert Field. The goal of this course is to illustrate the spectroscopy of small molecules in the gas phase: quantum mechanical effective Hamiltonian models for rotational, vibrational, and electronic structure; transition selection rules and relative intensities; diagnostic patterns and experimental methods for the assignment of non-textbook spectra; breakdown of the Born-Oppenheimer approximation (spectroscopic perturbations); the stationary phase approximation; nondegenerate and quasidegenerate perturbation theory (van Vleck transformation); qualitative molecular orbital theory (Walsh diagrams); the notation of atomic and molecular spectroscopy. (from ocw.mit.edu)

Lecture 21 - Construction of Potential Curves by the Rydberg-Klein-Rees Method (RKR)


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Lecture 01 - Matrices are Useful in Spectroscopic Theory
Lecture 02 - Coupled Harmonic Oscillators: Truncation of an Infinite Matrix
Lecture 03 - Building an Effective Hamiltonian
Lecture 04 - Atoms: 1e- and Alkali
Lecture 05 - Alkali and Many e- Atomic Spectra
Lecture 06 - Many e- Atoms
Lecture 07 - How to Assign an Atomic Spectrum
Lecture 08 - The Born-Oppenheimer Approximation
Lecture 09 - The Born-Oppenheimer Approach to Transitions
Lecture 10 - The Born-Oppenheimer Approach to Transitions II
Lecture 11 - Pictures of Spectra and Notation
Lecture 12 - Rotational Assignment of Diatomic Electronic Spectra I
Lecture 13 - Laser Schemes for Rotational Assignment First Lines for Ω', Ω" Assignments
Lecture 14 - Definition of Angular Momenta and |AαMA>
Lecture 15 - 2Π and 2Σ Matrices
Lecture 16 - Parity and e/f Basis for 2Π, 2Σ±
Lecture 17 - Hund's Cases: 2Π, 2Σ± Examples
Lecture 18 - Perturbations
Lecture 19 - Second-order Effects
Lecture 20 - Transformations between Basis Sets: 3-j, 6-j, and Wigner-Eckart Theorem
Lecture 21 - Construction of Potential Curves by the Rydberg-Klein-Rees Method (RKR)
Lecture 22 - Rotation of Polyatomic Molecules I
Lecture 23 - Asymmetric Top
Lecture 24 - Pure Rotation Spectra of Polyatomic Molecules
Lecture 25 - Polyatomic Vibrations: Normal Mode Calculations
Lecture 26 - Polyatomic Vibrations III: s-vectors and H2O
Lecture 27 - Polyatomic Vibrations IV: Symmetry
Lecture 28 - Normal and Local Modes. High Overtone Spectra
Lecture 29 - A Sprint through Group Theory
Lecture 30 - What is in a Character Table and How do We Use It?
Lecture 31 - Electronic Spectra of Polyatomic Molecules
Lecture 32
Lecture 33 - Vibronic Coupling
Lecture 34 - Wavepacket Dynamics
Lecture 35 - Wavepacket Dynamics II
Lecture 36 - CNPI Group Theory
Lecture 37 - Laser Double Resonance Studies
Lecture 38 - Laser Double Resonance Studies II