Photophysical properties of selected [84] fullerene isomers

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dc.contributor.advisorWeisman, R. Bruce
dc.creatorBooth, Eric Christopher
dc.date.accessioned2009-06-04T08:45:52Z
dc.date.available2009-06-04T08:45:52Z
dc.date.issued2002
dc.description.abstractThe photophysics of higher fullerenes remain poorly characterized, partly because they may exist in many isomeric structures that are difficult to isolate. This project concerns the properties of C84 isomers. Using recycling HPLC methods, we separated a sample of purified C84 into three fractions. The first contains a mixture of the three most abundant isomers---D 2 (IV), D2d (II), and Cs (a). The second and third peaks were found to contain the C2 and Cs (b) isomers, respectively. A kinetics-based method was used to find the effective molar absorptivities of these fractions. Sensitive transient absorption measurements following optical excitation reveal widely differing triplet state lifetimes among these isomers. Quenching studies indicate that one C84 isomer has a triplet state energy below that of oxygen's 1Delta g state, while the others have higher energies. Further results, including fluorescence spectra and variable-temperature triplet decay kinetics, will also be presented.
dc.format.extent85 p.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.callnoTHESIS CHEM. 2002 BOOTH
dc.identifier.citationBooth, Eric Christopher. "Photophysical properties of selected [84] fullerene isomers." (2002) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/17494">https://hdl.handle.net/1911/17494</a>.
dc.identifier.urihttps://hdl.handle.net/1911/17494
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectPhysical chemistry
dc.titlePhotophysical properties of selected [84] fullerene isomers
dc.typeThesis
dc.type.materialText
thesis.degree.departmentChemistry
thesis.degree.disciplineNatural Sciences
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Arts
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