Molecular eigenstate spectroscopy: Application to the intramolecular dynamics of some polyatomic molecules in the 3000 to 7000 cm sup minus 1 region

Technical Report · Wed May 01 04:00:00 EDT 1991

OSTI ID:5847578

Perry, D S

This project uses high resolution infrared spectroscopy to probe the mechanism of intramolecular vibrational redistribution (IVR) in isolated polyatomic molecules. We have found only vibrationally anharmonic coupling in the C-H stretch region of 1-butyne but rotationally mediated coupling is evident in similar spectra of ethanol. The keyhole'' model of IVR was developed to account for the similarities and differences between these molecules. The concepts of the model are being implemented numerically in random matrix calculations. A second F-center laser has been purchased and is now being set up to develop an infrared double resonance technique which can be applied to this problem. 4 refs., 5 figs.

• Research Organization: Akron Univ., OH (USA). Dept. of Chemistry
• Sponsoring Organization: DOE; USDOE, Washington, DC (USA)
• DOE Contract Number: FG02-90ER14151
• OSTI ID: 5847578
• Report Number(s): DOE/ER/14151-1; ON: DE91013154
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ALCOHOLS
DOCUMENT TYPES
EIGENSTATES
ENERGY LEVELS
ETHANOL
EXCITED STATES
HYDROXY COMPOUNDS
INFRARED SPECTROMETERS
MEASURING INSTRUMENTS
MOLECULES
ORGANIC COMPOUNDS
POLYATOMIC MOLECULES
PROGRESS REPORT
SPECTROMETERS
SPECTROSCOPY
VIBRATIONAL STATES