Search for dissertations about: "Metallorganisk kemi"
Showing result 1 - 5 of 9 swedish dissertations containing the words Metallorganisk kemi.
-
1. Coordination chemistry of late transition metals with PCP ligands. Synthesis, catalysis and mechanism
University dissertation from Organisk kemi, Kemiska institutionen, Box 188, 221 00 LundAbstract : Abstract The work presented in this thesis discusses synthesis of PCP-complexes and utilisations of such organometallic compounds in catalysis. The complexes, obtained by intramolecular Csp3-H activation, are based on the metals palladium, platinum and iridium. READ MORE
-
2. Aspects on the Regio and Stereo Selectivity in the Hydrolsilylation of 1,3-Dienes
University dissertation from Organic Chemistry, Lund UniversityAbstract : This thesis is a summary of four papers concerning various aspects on the transition metal catalysed hydrosilylation of 1,3-dienes. The hydrosilylation reaction is formally an addition of a hydrosilane to an unsaturated system and depending on the reaction conditions, control of stereo-, regio-, and chemo-selectivity can be achieved. READ MORE
-
3. Mechanistic investigation of platinum and palladium catalysed cross- coupling reactions. Implications for the Stille and Heck reactions
University dissertation from Department of Chemistry, Lund UniversityAbstract : The present thesis deals with various types of palladium(II) and platinum(II) complexes and their use in homogeneous catalysis. The focus has been devoted to mechanistic investigations concerning the Stille and Heck reactions and studies under both catalytic and stoichiometric conditions were conducted. READ MORE
-
4. Activation of CO2 by Palladium Complexes Bearing Tridentate PCP Ligands
University dissertation from Department of Chemistry, Lund UniversityAbstract : The present thesis deals with the activation of CO2 by insertion reactions into palladium-carbon bonds. This has been realised for the complexes {2,6-bis[(di-t-butylphosphino)methyl]benzene}palladium(II)methyl [(PCP)PdMe] and (PCP)PdCH2CHCH2. These complexes have also been used in the catalytic carboxylation of ZnMe2 and Bu3SnCH2CHCH2. READ MORE
-
5. Investigation of Coordination Modes of Organosulfur Ligands to osmium and Rhodium Carbonyl Clusters- Possible Relevance to Hydrodesulfurization Reactions
University dissertation from Inorganic Chemistry, Chemical Center, Lund UniversityAbstract : The coordination and fundamental transformations of organosulfur compounds to polynuclear metal complexes has been studied as models for possible surface species in industrial HDS processes. Reactions between [Os3(CO)11(NCMe)] and various thiols have been studied by UV-Vis, IR and NMR spectroscopy and all experimental findings indicate that the reactions proceed via a two-step consecutive process involving the intermediate [Os3(CO)11(RSH)], which contains an agostic Os-H-S interaction, and which leads to the formation of the final product [Os3(CO)10(m-H)(m-SR)]. READ MORE
