The Rotational Vibrational Spectrum of Monochloroacetylene
Datum
2016-06
Autor:innen
Willemsen, Connor Fitzpatrick
Zeitschriftentitel
ISSN der Zeitschrift
Bandtitel
Verlag
University of Oregon
Zusammenfassung
The 2v1 bands for HCC35CI and HCC37CI, the v,+v2+2v4 band for HCC35CI, and
the (v1+v4l-v41 hot band for HCC35Ct have been measured between 6370 and 6660 cm-1
using a custom spectrometer based around an external cavity diode laser. Upper and
lower state J-values have been assigned to each spectral line measured and confirmed
via mathematical modeling of the spectra. A double perturbation was identified and
characterized in 2v1 band of HCC37CI and /-type doubling was identified and
characterized in the ( v,+v4) 1-v41 hot band of HCC35CI. Rotational and centrifugal
distortion coefficients were calculated for all bands, along with additional constants to
characterize the perturbed states and the /-type doubling. Modeling using a Voigt line
shape was used to subtract the peaks of the HCC35CI main band to allow more complete
analysis of the HCC37CI main band and a novel fast-Fourier transform-based method
was used for baseline correction. Assignment accuracy of unblended lines for the
various bands ranges from 2.5x 104 cm-1 to I.Bx 10-3 cm-1.
Beschreibung
38 pages. A thesis presented to the Department of Chemistry and the Clark Honors College of the University of Oregon in partial fulfillment of the requirements for degree of Bachelor of Science, Spring 2016.
Schlagwörter
Chemistry, Monochloroacetylene, Rotational vibrational, Spectroscopy, Infrared, External Cavity Diode Laser, Physical chemistry