About
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.
Course Homepage: 5.80 Small-Molecule Spectroscopy and Dynamics
Course features at MIT OpenCourseWare page: *Syllabus *Calendar *Lecture Notes *Assignment *Exams
Videos

Lecture 5: Alkali and many e-atomic spectra
Apr 19, 2011
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2263 views

Lecture 4: Atoms: 1e- and alkali
Apr 19, 2011
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2465 views

Lecture 24: Pure rotation spectra of polyatomic molecules
Apr 19, 2011
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3049 views

Lecture 15: 2∏ and 2∑ matrices
Apr 19, 2011
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2067 views

Lecture 13: Laser schemes for rotational assignment first lines for Ω', Ω" assi...
Apr 19, 2011
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2154 views

Lecture 12: Rotational assignment of diatomic electronic spectra I
Apr 19, 2011
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2264 views

Lecture 11: Pictures of spectra and notation
Apr 19, 2011
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2017 views

Lecture 8: The Born-Oppenheimer approximation
Apr 19, 2011
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3243 views

Lecture 1: Matrices are useful in spectroscopic theory
Apr 19, 2011
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3321 views

Lecture 9: The Born-Oppenheimer approach to transitions
Apr 19, 2011
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2209 views

Lecture 20: Transformations between basis sets: 3-j, 6-j, and Wigner - Eckart th...
Apr 19, 2011
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2246 views

Lecture 14: Definition of angular momenta and | A α MA >, evaluation of HROT
Apr 19, 2011
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2073 views

Lecture 23: Asymmetric top
Apr 19, 2011
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2192 views

Lecture 17: Hund's cases: 2∏, 2∑± examples
Apr 19, 2011
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2179 views

Lecture 3: Building an effective hamiltonian
Apr 19, 2011
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2553 views

Lecture 10: The Born-Oppenheimer approach to transitions II
Apr 19, 2011
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2255 views

Lecture 16: Parity and e/f basis for 2∏, 2∑±
Apr 19, 2011
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1976 views

Lecture 22: Rotation of polyatomic molecules I
Apr 19, 2011
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2727 views

Lecture 18: Perturbations
Apr 19, 2011
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2423 views

Lecture 7: How to assign an atomic spectrum
Apr 19, 2011
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2528 views

Lecture 25: Polyatomic vibrations: normal mode calculations
Apr 19, 2011
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2521 views

Lecture 21: Construction of potential curves by the Rydberg-Klein-Rees method (R...
Apr 19, 2011
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2942 views

Lecture 19: Second-order effects
Apr 19, 2011
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2078 views

Lecture 6: Many e- atoms
Apr 19, 2011
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2122 views

Lecture 2: Coupled harmonic oscillators: truncation of an infinite matrix
Apr 19, 2011
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2838 views