Anion photoelectron spectroscopy of radicals and clusters

Thesis/Dissertation · Wed Dec 01 04:00:00 EST 1999

DOI:https://doi.org/10.2172/753103· OSTI ID:753103

Travis, Taylor R. ^[1]

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1. Univ. of California, Berkeley, CA (United States); LBNL Library

Anion photoelectron spectroscopy is used to study free radicals and clusters. The low-lying ²Σ and ²π states of C_2nH (n = 1--4) have been studied. The anion photoelectron spectra yielded electron affinities, term values, and vibrational frequencies for these combustion and astrophysically relevant species. Photoelectron angular distributions allowed the author to correctly assign the electronic symmetry of the ground and first excited states and to assess the degree of vibronic coupling in C₂H and C₄H. Other radicals studied include NCN and I₃. The author was able to observe the low-lying singlet and triplet states of NCN for the first time. Measurement of the electron affinity of I₃ revealed that it has a bound ground state and attachment of an argon atom to this moiety enabled him to resolve the symmetric stretching progression.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC); National Science Foundation (NSF)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 753103
• Report Number(s): LBNL--44716
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ASTROPHYSICS
COMBUSTION KINETICS
EXCITED STATES
HYDROCARBONS
IODINE
ION PAIRS
ORGANIC NITROGEN COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
RADICALS