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dc.contributor.authorWilson, Joseph P.eng
dc.contributor.authorHaidekker, Mark A., 1963-eng
dc.contributor.corporatenameUniversity of Missouri-Columbia. Office of Undergraduate Researcheng
dc.contributor.meetingnameSummer Undergraduate Research and Creative Achievements Forum (2004 : University of Missouri--Columbia)eng
dc.date2004eng
dc.date.issued2004eng
dc.descriptionAbstract only availableeng
dc.description.abstractMolecular rotors, a special class of compounds which form twisted intramolecular charge transfer complexes (TICT), have dual deexcitation processes - intramolecular rotation and fluorescence emission. Molecular rotors exhibit a quantum yield that is sensitive to changes in solution viscosity; this property makes molecular rotors highly suitable for optical measurements of viscosity. The goal of this study was to test the idea that increasing the chain length of the molecular rotor increases its viscosity sensitivity. Molecular rotors of varying chain length were selected for experimentation; DCVJ, a thoroughly studied molecular rotor, was chosen as the control. Mixtures of differing ratios of ethylene glycol and glycerol were created to vary viscosity. Fluorescence emission intensity data for the six molecular rotors was measured with a Jobin Yvon Fluoromax-3 spectrofluorometer. Logarithmic graphs of fluorescence intensity versus viscosity were created and displayed a linear relationship with regression values exceeding 0.99. However, the slopes for the various molecular rotors were not significantly different. The results demonstrate that increasing the molecular rotor's chain length does not significantly increase viscosity sensitivity, indicating that additional elements can be attached to the molecular rotor without changing its functionality.eng
dc.description.sponsorshipNSF-REU Biosystems Modelingeng
dc.identifier.urihttp://hdl.handle.net/10355/2050eng
dc.languageen_USeng
dc.publisherUniversity of Missouri--Columbia. Office of Undergraduate Researcheng
dc.relation.ispartof2004 Summer Undergraduate Research and Creative Achievements Forum (MU)eng
dc.relation.ispartofcommunityUniversity of Missouri-Columbia. Office of Undergraduate Research. Undergraduate Research and Creative Achievements Forumeng
dc.source.urihttp://undergradresearch.missouri.edu/forums-conferences/abstracts/abstract-detail.php?abstractid=eng
dc.subjectviscosity sensitive molecular rotorseng
dc.subjectintramolecular charge transfer complexeseng
dc.subjectintramolecular rotationeng
dc.subjectfluorescence emissioneng
dc.titleExamination of the robustness of viscosity sensitive molecular rotors against chemical modificationeng
dc.typePresentationeng


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