High Resolution Laser Spectroscopy of the V8 Vibrational Band of Sulfuryl Fluoride.

摘要

A tunable diode laser is used to investigate the nu sub 8 vibrational band of Sulfuryl Fluoride in the 11 micrometer region. Although the absorption spectrum is doppler limited, the resolution is high enough to observe previously unresolved lines and therefore determine the band center and other excited state molecular constants. The band constants are determined by a least squares fit computer program using an S Reduced hamiltonian to model the molecular vibration-rotation. The molecule is slightly aspherical and requires curve fitting to thousand of lines. The S Reduced hamiltonian, as well as other pertinent theoretical topics are discussed.