The energetics and dynamics of free radicals, ions, and clusters

Technical Report · Thu Apr 01 00:00:00 EST 1993

DOI:https://doi.org/10.2172/6580009· OSTI ID:6580009

Baer, T

Structure and energetics of free radicals, ions, and clusters are being investigated by photoelectron photoion coincidence and analyzed using ab initio molecular orbital and statistical theory (RRKM). Molecules or free radicals are prepared in a molecular beam. Translational temperature is found from measured time of flight peakwidth; the vibrational temperature, from shift in dissociation onset. Free radicals are produced by pyrolysis in the nozzle; their subsequent cooling is demonstrated. Ion dissociation rates in the range from 10[sup 4] to 10[sup 7] s[sup [minus]1] are measured from the asymmetric TOF distribution; this method was used to measure the dissociation rates of cold and warm butene ions. 2 figs.

• Research Organization: North Carolina Univ., Chapel Hill, NC (United States). Dept. of Chemistry
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG05-88ER13950
• OSTI ID: 6580009
• Report Number(s): DOE/ER/13950-T2; ON: DE93013355
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BUTENES
PHOTOIONIZATION
ACETYLENE
ATOMIC CLUSTERS
DISSOCIATION
DYNAMICS
ETHYLENE
IONS
MOLECULAR BEAMS
PHOTOLYSIS
PROGRESS REPORT
RADICALS
ALKENES
ALKYNES
BEAMS
CHARGED PARTICLES
CHEMICAL REACTIONS
DECOMPOSITION
DOCUMENT TYPES
HYDROCARBONS
IONIZATION
MECHANICS
ORGANIC COMPOUNDS
PHOTOCHEMICAL REACTIONS
400500* - Photochemistry