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  4. Porphyrin- und Porphyrin-Fulleren-Derivate - Synthese und Immobilisierung auf Goldoberflächen
 
Zitierlink URN
https://nbn-resolving.de/urn:nbn:de:gbv:46-diss000113526

Porphyrin- und Porphyrin-Fulleren-Derivate - Synthese und Immobilisierung auf Goldoberflächen

Veröffentlichungsdatum
2008-11-18
Autoren
Eberle, Christoph  
Betreuer
Montforts, Franz-Peter  
Gutachter
Stohrer, Wolf-Dieter  
Zusammenfassung
Primary object of this work was the derivatisation of porphyrins and fullerenes for enabling them to adsorb and co-adsorb on gold surfaces, respectively. The adsorbates were designed according to a tool box concept. Starting from the red blood pigment heme, partial synthetic routes easily lead to desired products. Commercially available hemin was first converted to deuteroporphyrin dimethylester, which served as starting material. Metalloporphyrins and fullerenes were both functionalised by bis-lipoic acid anchors. A fullerene SAM could be postmodified by Diels-Alder reaction without cleaving the gold-sulphur bond yielding a Zn(II) porphyrin fullerene dyad. Due to strong surface attachment it should be possible to generate a photocurrent using said donor-acceptor pair. Immobilised species were electrochemically and morphologically characterised by state-of-the-art techniques. Surface coverages of modified gold electrodes were calculated after reductive desorption in strong alkaline solution. Nanostructured surfaces exposing different chemical functionalities were tested regarding sensor and catalytic activities.
Schlagwörter
Porphyrins, Fullerenes, Partial Synthesis, Electrochemistry, Flame Annealing, Gold, Lipoic Acid, Nanotechnology, Surface Modifications, Self-assembled Monolayers
Institution
Universität Bremen  
Fachbereich
Fachbereich 02: Biologie/Chemie (FB 02)  
Dokumenttyp
Dissertation
Zweitveröffentlichung
Nein
Sprache
Deutsch
Dateien
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Name

00011352.pdf

Size

4.78 MB

Format

Adobe PDF

Checksum

(MD5):7467e66bad9ccf1fe2dc82de537547ee

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