Molecular spectroscopy and structure
Course details
Course lecturers:
Dr Colin Western (CMW)
Date: Autumn 2009
See also: Wikipedia notes on this course
Table of contents
 Textbooks
 Texts recommended by the lecturers
 Other coverage
 Diatomic Molecules
 Molecular orbital diagram; Term Symbols; Selection Rules
 Separation of motions
 Rotation
 Energy levels of linear molecules
 Moments of inertia; determining geometry from rotational constants
 Nonlinear molecules; symmetric and asymmetric tops
 Microwave spectroscopy; application to astronomy
 Electronic States
 Term symbols for polyatomic molecules
 Change of orbital energy with geometry  Walsh diagrams for H_{2}O, NH_{3} and C_{2}H_{4} (π orbitals)
 Consequences for electronic and photoelectron spectrum
 Selection rules. Rovibronic Spectra
 Characteristics of Electronic Transitions
 Transition strength/dipole; Forbidden transitions
 Types of transitions and chromophores: d–d; charge transfer; π−π*, n−π*
 Vibration
 Potential energy curves and FranckCondon factors; Photoelectron spectroscopy
 Normal modes and symmetry. Infrared active and inactive modes. Force constants.
 Degenerate modes
 Modern Spectroscopy (4th edition)
J. M. Hollas
Wiley (2003)
ISBN 9780470844168 (Wiley, Amazon.co.uk)
 High Resolution Spectroscopy (2nd edition)
J. M. Hollas
Wiley (1998)
ISBN 9780471974215 (Wiley, Amazon.co.uk)
Coming soon!
