Master of Science in Physics
First Committee Member
Michael Pravica, Co-Chair
Second Committee Member
Lon Spight,, Co-Chair
Third Committee Member
Fourth Committee Member
Graduate Faculty Representative
Number of Pages
1,3,5,7-cyclooctatetraene (COT) is a single-ringed hydrocarbon that has not been studied extensively under high static pressures. It was the intent of this study to reveal its high-pressure behavior through its vibrational spectra. To this end, its infrared spectra as a function of pressure were collected at the National Synchrotron Light Source (NSLS) U2A beamline, as well as its Raman spectra over pressure using a micro-Raman spectrometer.
The spectra show the typical stiffening of force constants with increasing pressure for most peaks, particularly those which would theoretically exhibit a mode-softening behavior under hypotheses of molecular planarization and aromatization. Additionally, the data supports the findings of a previous spectroscopic study done by our group, in which the sample transforms into a phase lacking long-range order and possessing a waxy appearance upon release of the sample from pressure, indicative of high-pressure induced chemistry.
Aromaticity (Chemistry); Cyclooctatetraene; Flattening; High pressure (Science); Hydrocarbons; Infrared; Raman effect; Raman spectroscopy
Atomic, Molecular and Optical Physics | Organic Chemistry | Physics
Romano, Edward, "Vibrational spectroscopic study of the 1,3,5,7-cyclooctatetraene at high static pressures" (2010). UNLV Theses, Dissertations, Professional Papers, and Capstones. 850.