Unimolecular reaction dynamics and vibrational overtone spectroscopy of highly vibrationally excited molecules: Technical progress report

Technical Report · Fri Jan 01 04:00:00 EST 1988

OSTI ID:6437420

Grim, F F

Highly selective techniques for producing energized molecules along with time-resolved spectroscopic detection schemes provide a means of exploring the spectroscopy, unimolecular reaction, and electronic photodissociation dynamics of highly vibrationally excited molecules. The primary goal is to determine the nature and chemical behavior of highly vibrationally excited molecules since they are important in combustion, atmospheric chemistry, and complex chemical processes. We obtain spectra of highly vibrationally excited molecules and develop models to describe the energized molecule. Measurements in low pressure gases and in supersonic expansions provide estimates of the reaction rate of a molecule in a single angular momentum state and determine the distribution of the products among their quantum states. These data allow us to make detailed comparison with theoretical predictions. Studies of the electronic photodissociation dynamics reveal unique decomposition processes that arise from molecules reaching portions of the electronically excited potential energy surface that are inaccessible to conventional techniques. 38 refs., 7 figs., 1 tab.

• Research Organization: Wisconsin Univ., Madison (USA)
• DOE Contract Number: FG02-86ER13500
• OSTI ID: 6437420
• Report Number(s): DOE/ER/13500-1; ON: DE89006757
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR MOMENTUM
CHEMICAL REACTIONS
COMBUSTION
DISSOCIATION
DOCUMENT TYPES
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
MOLECULES
OXIDATION
PROGRESS REPORT
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
VIBRATIONAL STATES