Stimulated-emission pumping spectroscopy of jet-cooled C sub 3 : antisymmetric stretch--bend levels

Journal Article · Sat Sep 01 04:00:00 EDT 1990 · Journal of the Optical Society of America, Part B: Optical Physics; (USA)

DOI:https://doi.org/10.1364/JOSAB.7.001915· OSTI ID:6286665

Rohlfing, E A; Goldsmith, J E.M. ^[1]

---

1. Combustion Research Facility, Sandia National Laboratories, Livermore, California 94551 (USA)

We present a study of jet-cooled C{sub 3} in which stimulated-emission pumping spectroscopy is used to probe rovibrational levels at energies up to 8930 cm{sup {minus}1} in the ground state. Stimulated-emission pumping spectra are reported for pump bands in the {ital {tilde A}}{sup 1}{Pi}{sub {ital u}}--{ital {tilde X}}{sup 1}{Sigma}{sup +}{sub {ital g}} system and for dump transitions that terminate in the bending progressions of states with two and four quanta of antisymmetric stretch. These spectra are used to determine the rovibrational term energies over the range {ital J}=2 to {ital J}=12 for the antisymmetric stretch--bend levels, 0{ital v}2 ({ital v}=0 to {ital v}=8) and 0{ital v}4 ({ital v}=0 to {ital v}=14). These data clearly illustrate that the effective bending potentials in the 002 and the 004 states have substantial barriers to linearity.

• OSTI ID: 6286665
• Journal Information: Journal of the Optical Society of America, Part B: Optical Physics; (USA), Journal Name: Journal of the Optical Society of America, Part B: Optical Physics; (USA) Vol. 7:9; ISSN JOBPD; ISSN 0740-3224
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
023000 -- Petroleum-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ASYMMETRY
BEAMS
CARBON
CHEMICAL ANALYSIS
DATA
ELEMENTS
EMISSION SPECTROSCOPY
ENERGY LEVELS
ENERGY SOURCES
EXCITED STATES
EXPERIMENTAL DATA
FLUORESCENCE SPECTROSCOPY
FOSSIL FUELS
FUELS
INFORMATION
INFRARED SPECTRA
JETS
MOLECULAR BEAMS
NONMETALS
NUMERICAL DATA
OPTICAL PUMPING
PETROLEUM
PUMPING
ROTATIONAL STATES
SPECTRA
SPECTROSCOPY
VIBRATIONAL STATES