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dc.contributor.advisor Curl, Robert F., Jr.
dc.creatorFarhat, Shahla Khan
dc.date.accessioned 2009-06-04T08:48:49Z
dc.date.available 2009-06-04T08:48:49Z
dc.date.issued 1994
dc.identifier.urihttps://hdl.handle.net/1911/17050
dc.description.abstract The C-H stretching fundamental of the free radical HCCN has been investigated under high resolution using infrared kinetic spectroscopy. This transient molecule was produced by the flash photolysis of dibromoacetonitrile (Br$\sb2$HCCN) at 193 nm and its transient infrared absorption spectrum probed using a color center laser. Spectra of the molecule were collected between 3182 and 3274 cm$\sp{-1}$. The rotational analysis of the $\nu\sb1$ fundamental places its origin at 3246.657 cm$\sp{-1}$. Four hot bands associated with the bending vibrations have been observed; the vibrational and rotational assignment of three of these bands $\nu\sb1 + \nu\sb5 - \nu\sb5$, $\nu\sb1 + \nu\sb4 - \nu\sb4$, and $\nu\sb1 + 2\nu\sb5\sp{\pm 2} - 2\nu\sb5\sp{\pm 2}$ is definite. The $\nu\sb5$ energy was obtained by measuring the intensity of a line of the $\nu\sb1 + \nu\sb5 - \nu\sb5$ band relative to one of the fundamental and calculating the energy assuming a room temperature Boltzmann distribution. A comparison of this energy with that of quasilinear fulminic acid, HCNO, and with theoretical calculations suggests a similar floppy HCX bending potential.
dc.format.extent 75 p.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.subjectPhysical chemistry
dc.title Color center laser kinetic spectroscopy: Evidence for quasilinearity of HCCN
dc.type.genre Thesis
dc.type.material Text
thesis.degree.department Chemistry
thesis.degree.discipline Natural Sciences
thesis.degree.grantor Rice University
thesis.degree.level Masters
thesis.degree.name Master of Arts
dc.identifier.citation Farhat, Shahla Khan. "Color center laser kinetic spectroscopy: Evidence for quasilinearity of HCCN." (1994) Master’s Thesis, Rice University. https://hdl.handle.net/1911/17050.


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