The Role of Intramolecular Coupling and Relaxation in IR-Photochemistry

  • Martin Quack
Part of the The Jerusalem Symposia on Quantum Chemistry and Biochemistry book series (JSQC, volume 15)

Abstract

Intramolecular vibrational and rotational coupling and possibly relaxation processes are essential for an efficient multiphoton excitation of polyatomic molecules by intense infrared laser light. The manifestations of such couplings in molecular spectra are discussed with particular reference also to off-resonant couplings. Then the evidence from IR photochemical experiments is discussed. Evidence from absolute rates in small and large molecules is mentioned first. Secondly, a brief discussion is given of relative rates for one molecule, using laser frequencies exciting different vibrational fundamental bands. Finally the evidence from product and product energy distributions in IR-photochemistry is illustrated with some new statistical model calculations.

Keywords

Formaldehyde Dithietane 

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Copyright information

© D. Reidel Publishing Company 1982

Authors and Affiliations

  • Martin Quack
    • 1
  1. 1.Institut für Physikalische ChemieUniversitat Tammannstraße 6GöttingenWest Germany

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