Robert Field is the Haslam and Dewey Professor of Chemistry at MIT. His research specialties include dynamics encoded in frequency domain spectra of small, gas phase molecules, at high excitation, where all standard energy level patterns are broken: spectroscopic perturbations, Rydberg states, and unimolecular isomerization. His favorite experimental techniques include Stimulated Emission Pumping and Chirped Pulse Millimeter Wave spectroscopy.

• Preface.- Introduction.- Hierarchy of Terms in the Effective Hamiltonian.- Spectroscopic Perturbations: Homogeneous and Heterogeneous.- The Effective Hamiltonian for Diatomic Molecules.- Rotation of Polyatomic Molecules.- Quantum Beats.-  The Effective Hamiltonian for Polyatomic Molecule Vibration.- Intramolecular Dynamics: Representations ,Visualizations and Mechanisms.

Robert Field is the Haslam and Dewey Professor of Chemistry at MIT. His research specialties include dynamics encoded in frequency domain spectra of small, gas phase molecules, at high excitation, where all standard energy level patterns are broken: spectroscopic perturbations, Rydberg states, and unimolecular isomerization. His favorite experimental techniques include Stimulated Emission Pumping and Chirped Pulse Millimeter Wave spectroscopy.

• Preface.- Introduction.- Hierarchy of Terms in the Effective Hamiltonian.- Spectroscopic Perturbations: Homogeneous and Heterogeneous.- The Effective Hamiltonian for Diatomic Molecules.- Rotation of Polyatomic Molecules.- Quantum Beats.-  The Effective Hamiltonian for Polyatomic Molecule Vibration.- Intramolecular Dynamics: Representations ,Visualizations and Mechanisms.