Electrochemical and Spectroelectrochemical Studies on Bis-porphyrins, Porphyrins with Charged Substituents and Water-soluble Porphyrazines
| dc.contributor.advisor | Kadish, Karl M. | |
| dc.contributor.committeeMember | Bear, John L. | |
| dc.contributor.committeeMember | Baldelli, Steven | |
| dc.contributor.committeeMember | Brgoch, Jakoah | |
| dc.contributor.committeeMember | Van Caemelbecke, Eric | |
| dc.creator | Zeng, Lihan 1988- | |
| dc.date.accessioned | 2017-08-07T20:31:11Z | |
| dc.date.available | 2017-08-07T20:31:11Z | |
| dc.date.created | August 2015 | |
| dc.date.issued | 2015-08 | |
| dc.date.submitted | August 2015 | |
| dc.date.updated | 2017-08-07T20:31:12Z | |
| dc.description.abstract | In this thesis, the electrochemical and spectral properties of a series of bis-porphyrins, porphyrins with charged subsituents and water-soluble porphyrazines are investigated in aqueous or non-aqueous media. Bis-porphyrins containing a β,β'-fused pyrazino (Pz) linking group were examined by electrochemistry and thin-layer UV-visible spectroelectrochemistry in PhCN containing 0.1 M tetra-n-butylammonium perchlorate (TBAP) as supporting electrolyte. The investigated compounds are represented as M(TPP)-Pz-(TPP)M, where TPP is the dianion of tetraphenylporphyrin and M = ZnII, CuII or AgII. The effect of the linking Pz group on the redox potentials and UV-visible spectra of the neutral, electroreduced and electrooxidized bis-porphyrins is discussed. Electrochemical and spectral properties of a new class of water-soluble porphyrazine complexes are characterized in pyridine, DMSO, DMF and water media. The investigated compounds are represented as [{Pd(OAc)2}4LM] (L = tetrakis-2,3-[5,6-di(2-pyridyl)pyrazino]porphyrazinato dianion; M = MgII(H2O), ZnII, CuII, CoII, PdII, PtII) and bear four Pd(OAc)2 units, each externally coordinated at the vicinal pyridine N atoms of a single dipyridinopyrazine fragment of the porphyrazine macrocycle (“py-py” coordination). The electrochemistry and spectroelectrochemistry of a series of tetra-N-alkylpyridyl and tetrasulfonato manganese porphyrins are studied in DMSO and DMF. The mixture of tetra-N-alkylpyridyl and tetrasulfonato manganese porphyrins with 1:1 molar ratio in DMF solution is also studied by electrochemistry and spectroelectrochemistry and is described in this thesis. | |
| dc.description.department | Chemistry, Department of | |
| dc.format.digitalOrigin | born digital | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.citation | Portions of this document appear in: Fang, Yuanyuan, Federica Mandoj, Lihan Zeng, Rajesh Pudi, Manuela Stefanelli, Roberto Paolesse, and Karl M. Kadish. "Electrochemistry and spectroelectrochemistry of β-pyrazino-fused tetraarylporphyrins in nonaqueous media." Journal of Porphyrins and Phthalocyanines 19, no. 01n03 (2015): 388-397. https://doi.org/10.1142/S1088424615500224 | |
| dc.identifier.uri | http://hdl.handle.net/10657/1966 | |
| dc.language.iso | eng | |
| dc.rights | The author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. UH Libraries has secured permission to reproduce any and all previously published materials contained in the work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s). | |
| dc.subject | Electrochemistry | |
| dc.subject | Spectroelectrochemistry | |
| dc.subject | Porphyrins | |
| dc.subject | Bisporphyrin | |
| dc.subject | Porphyrazines | |
| dc.title | Electrochemical and Spectroelectrochemical Studies on Bis-porphyrins, Porphyrins with Charged Substituents and Water-soluble Porphyrazines | |
| dc.type.dcmi | text | |
| dc.type.genre | Thesis | |
| thesis.degree.college | College of Natural Sciences and Mathematics | |
| thesis.degree.department | Chemistry, Department of | |
| thesis.degree.discipline | Chemistry | |
| thesis.degree.grantor | University of Houston | |
| thesis.degree.level | Masters | |
| thesis.degree.name | Master of Science |