Search for dissertations about: "Metallocene"
Showing result 1 - 5 of 8 swedish dissertations containing the word Metallocene.
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1. Metallocene based peptidomimetics and chiral catalysts
Abstract : Several optically active organometallic Phe-AAn-Phe peptidomimetics and macrocyclic Phe-(Phe)n peptides have been synthesized by either intra- or intermolecular peptide bond formation of the corresponding bis(amino acid) derivatives. The key bis(amino acid) derivatives were available from an improved multi-step synthetic route, utilising Horner-Wadswort-Emmons olefination of organometallic aldehydes with phosphonylglycine reagents, enantioselective hydrogenation of didehydro amino acids and classical solution and/or solid phase peptide synthesis methodology. READ MORE
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2. Heterogeneous Photolytic Synthesis of Nanoparticles
Abstract : Nanoparticles of iron, cobalt and tungsten oxide were synthesised by photolytic laser assisted chemical vapour deposition (LCVD). An excimer laser (operating at 193 nm) was used as an excitation source. The LCVD process, was monitored in situ by optical emission spectroscopy (OES). READ MORE
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3. Chiral metallocene ligands for transition metal-catalysed reactions
Abstract : .... READ MORE
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4. BIOACTIVE ORGANOMETALLIC COMPOUNDS
Abstract : Various metal complexes have been used in medicine traditionally, although their use was often connected with mystery and with a lack of empirically (clinically) proven effect. In modern times, the development of biochemistry, bioinorganic and bioorganometallic chemistry allows us more in-depth understanding of biological action of metal containing substances. READ MORE
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5. Interactions between polymers and the environment
Abstract : This dissertation addresses the structure and properties of a number of polymer-based materials when they come into contact with specific environments. The first part describes the migration and depletion of active substances from insecticide-impregnated polyethylene sheets in water and air at different humidity levels and higher temperatures. READ MORE