Ionization probes of molecular structure and chemistry

Technical Report · Fri Jan 01 04:00:00 EST 1993

DOI:https://doi.org/10.2172/7030747· OSTI ID:7030747

Johnson, P M

Development of laser ionization tools toward study of spectroscopy and dynamics of molecules relevant to combustion processes. Ionization versus dissociation was studied in CO[sub 2]; the intensity dependence of vibrational structure in photoelectron spectra had no changes over almost a 2[times] factor, indicating that the CO[sub 2] multiphoton ionization through its Rydberg states proceeds by autoionization of bound, neutral dissociative states at the four photon level. Variants of threshold ionization spectroscopy were used for studying ions, aromatics, diazines, azines, etc. In collaboration with BNL people, rotational structure of the combustion radicals trans-HOCO and DOCO, and vacuum uv photodissociation of three chlorofluoromethanes were studied.

• Research Organization: State Univ. of New York, Stony Brook, NY (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-86ER13590
• OSTI ID: 7030747
• Report Number(s): DOE/ER/13590-12; ON: DE93008211
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
400800 -- Combustion
Pyrolysis
& High-Temperature Chemistry
AZINES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL REACTIONS
COMBUSTION
DECOMPOSITION
DISSOCIATION
DOCUMENT TYPES
ENERGY LEVELS
EXCITED STATES
HALOGENATED ALIPHATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
IONIZATION
IONS
LASERS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOIONIZATION
PHOTOLYSIS
PROBES
PROGRESS REPORT
RADICALS
ROTATIONAL STATES
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
VIBRATIONAL STATES