Contained is work conducted for the purposes of creating a single molecule white-light emitter. The efforts include the synthesis and characterization of a number of multistate fluorophores that can either undergo an Excited-State Intramolecular Proton Transfer (ESIPT) or a Charge-Transfer (CT) emission mechanism. In addition, all title compounds studied were sensitive to basic species and generated phenolate like species with distinct emission profiles from their parent phenol like forms. To fully understand the fluorophores of the 2-(2-hydroxyphenyl)benzoxazole (HBO) and 1,4-substituted-1,2,3-trazole varieties, and their potential in a material applications visual spectroscopy was employed (UV-vis, fluorescence, quantum yield, and CIE 1931 coordinates). The results for dyes derived from the 1,4-substituted-1,2,3-triazole structures were found to contain interesting CT behavior and photo switching upon addition of base but were shown to lack an emissive ESIPT mechanism. Dyes derived from the HBO structures contained significant solvatochromic shifts from ~420 nm (blue) to ~550 nm (yellow) in the neutral forms. Quantum yields were found up to 0.35 and CIE 1931 coordinates close to the value for ideal white-light with values at around (0.31, 0.32). The phenolate derivatives were found to be mostly monochromatic with high quantum yields from 0.20 – 0.80. / A Dissertation submitted to the Department of Chemistry and Biochemistry in partial fulfillment of the requirements for the degree of Doctor of Philosophy. / Summer Semester 2018. / June 22, 2018. / Chemistry, Dye, Fluorophore, Organic, Synthesis, WOLED / Includes bibliographical references. / Lei Zhu, Professor Directing Dissertation; Jingjiao Guan, University Representative; Kenneth G. Hanson, Committee Member; Justin G. Kennemur, Committee Member; Brian G. Miller, Committee Member.
| Identifer | oai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_650729 |
| Contributors | Meisner, Quinton J. (Quinton James) (author), Zhu, Lei, 1978- (professor directing dissertation), Guan, Jingjiao (university representative), Hanson, Kenneth G. (committee member), Kennemur, Justin Glenn (committee member), Miller, Brian G (committee member), Florida State University (degree granting institution), College of Arts and Sciences (degree granting college), Department of Chemistry and Biochemistry (degree granting departmentdgg) |
| Publisher | Florida State University |
| Source Sets | Florida State University |
| Language | English, English |
| Detected Language | English |
| Type | Text, text, doctoral thesis |
| Format | 1 online resource (211 pages), computer, application/pdf |
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