Synthesis and characterization of oligoproline-based molecular assemblies for light harvesting
| Autor: | Brooks J. Hornstein, Dana M. Dattelbaum, Jon R. Schoonover, Scafford A. Serron, Thomas J. Meyer, W. Steven Aldridge |
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| Rok vydání: | 2006 |
| Předmět: |
chemistry.chemical_classification
Models Molecular Light Proline Stereochemistry Photochemistry Carboxylic acid Organic Chemistry Molecular Conformation Peptide Electron donor Electrons Chromophore Combinatorial chemistry Chemical synthesis chemistry.chemical_compound Electron transfer chemistry Phenothiazines Phenothiazine Peptide synthesis Oligopeptides Oxidation-Reduction |
| Zdroj: | The Journal of organic chemistry. 71(14) |
| ISSN: | 0022-3263 |
| Popis: | Helical oligoproline arrays provide a structurally well-defined environment for building photochemical energy conversion assemblies. The use of solid-phase peptide synthesis (SPPS) to prepare four such arrays, consisting of 16, 17, 18, and 19 amino acid residues, is described here. Each array contains the chromophore [Rub'(2)m](PF(6))(2) (b' = 4,4'-diethylamidocarbonyl-2,2'-bipyridine; m = 4-methyl-2,2'-dipyridine-4'-carboxylic acid) and the electron transfer donor PTZ (phenothiazine). The arrays differ systematically in the distance between the redox-active metal complex and PTZ sites. They have been used in photophysical studies to provide insight into the distance dependence of electron transfer. (J. Am. Chem. Soc. 2004, 126, 14506-14514). This work describes the synthesis, purification, and characterization of the oligoproline arrays, including a general procedure for the synthesis of related arrays. |
| Databáze: | OpenAIRE |
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