Spectroelectrochemistryandvoltammetryofmetalloporphinones
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Spectroelectrochemistryandvoltammetryofmetalloporphinones
Spectroelectrochemistryandvoltammetryofmetalloporphinones
Marquette Universitye-Publications(d)MarquetteDissertations (2009 •)Dissertations, 'Iheses, and Professional ProjectsSpectroelectrochemistry and volta Spectroelectrochemistryandvoltammetryofmetalloporphinonesammetry of metalloporphinonesFiorentina TutuneaMarquette UniversityRecommended CitationTutunea, Fiorentina, 'Spectroeleettocbemtótryvoltammetry of metallopoiphinones' (2011). DteertatioHS (200i> ■). Paper 144,http:/. 'epublKatiom.marquette.edu, 'dissertatiommu/ 144SPECTROELECTROCHEMISTRY AND VOLTAMM SpectroelectrochemistryandvoltammetryofmetalloporphinonesETRY OF METALLOPORPHINONESByFiorentina Tutunea. M.S.A Dissertation submitted to the Faculty of the Graduate School. Marquette University, in Partial FSpectroelectrochemistryandvoltammetryofmetalloporphinones
ulfillment of the Requirements for the Degree of Doctor of PhilosophyMilwaukee. Wisconsin40756ABSTRACTSPLC1ROLLLCTROCHEMISTRY AND VOLTAMMLTRY OF MF.TAMarquette Universitye-Publications(d)MarquetteDissertations (2009 •)Dissertations, 'Iheses, and Professional ProjectsSpectroelectrochemistry and volta Spectroelectrochemistryandvoltammetryofmetalloporphinonesmetabolism. The emphasis of this research project has been to develop spectroscopic markers in order to identify metal versus porphinone reduction. The carbonyl group in the porphinonc has a very strong signal which is quite sensitive to the extent of reduction of the porphinone macrocycle.The spect Spectroelectrochemistryandvoltammetryofmetalloporphinonesral change makes ĨR an important tool in the process of structure determination of metalloporphyrins because the carbonyl group shift can be correlateSpectroelectrochemistryandvoltammetryofmetalloporphinones
d with the metal oxidation state. It was observed from previously published studies that a higher metal oxidation state moves the carbonyl group at a Marquette Universitye-Publications(d)MarquetteDissertations (2009 •)Dissertations, 'Iheses, and Professional ProjectsSpectroelectrochemistry and volta Spectroelectrochemistryandvoltammetryofmetalloporphinonesron porphinones, but the lack of empirical relationships for the spectroscopic data has made it difficult to clearly interpret the results. Consequently, previous students' work was extended to include zinc, cobalt and manganese complexes. It has been postulated that zinc and manganese complexes wou Spectroelectrochemistryandvoltammetryofmetalloporphinonesld lead to primarily macrocycle reduction while cobalt complexes would be more similar to iron. By using a combination of spectroscopic techniques (viSpectroelectrochemistryandvoltammetryofmetalloporphinones
sible and infrared spectroscopy), it has been possible to separate metal from macrocycle reduction. Additional information is now being gathered usingMarquette Universitye-Publications(d)MarquetteDissertations (2009 •)Dissertations, 'Iheses, and Professional ProjectsSpectroelectrochemistry and volta Spectroelectrochemistryandvoltammetryofmetalloporphinonesalysis.Based on Illis information, our studies will be focused on the mentioned correlation and bring supplementary evidence for the problem addressed by researchers in the last 25 years concerning the oxidation stale of iron! 11) upon reduction.ACKNOWLEDGEMENTSI would like to thank to research advi Spectroelectrochemistryandvoltammetryofmetalloporphinonesser. Dr. Michael D. Ryan for his guidance and encouragement throughout the course of this research and for his suggestions and corrections of this disSpectroelectrochemistryandvoltammetryofmetalloporphinones
sertation.I also would like to express appreciation to my research committee members. Dr. James R. Kincaid. Dr. Adam Fiedler for their guidance and suMarquette Universitye-Publications(d)MarquetteDissertations (2009 •)Dissertations, 'Iheses, and Professional ProjectsSpectroelectrochemistry and volta Spectroelectrochemistryandvoltammetryofmetalloporphinonesaculty and the staff of the Chemistry Department of Marquette University for all their help.I am very thankful for the support and encouragement of my friends in Romania.my parents for their love and understanding.iiTABLE OF CONTENTSACKNOWLEDGEMENTS................................................... Spectroelectrochemistryandvoltammetryofmetalloporphinones..iChapter 1INTRODUCTION...............................................11.Background: Structure and Nomenclature of Porphyrins.............1Marquette Universitye-Publications(d)MarquetteDissertations (2009 •)Dissertations, 'Iheses, and Professional ProjectsSpectroelectrochemistry and voltaMarquette Universitye-Publications(d)MarquetteDissertations (2009 •)Dissertations, 'Iheses, and Professional ProjectsSpectroelectrochemistry and voltaGọi ngay
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