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Polymer-supported pincers for selective molecular and ionic bindingGolden, Christopher Alex January 2005 (has links)
This thesis reports an investigation into the preparation and use of immobilised pyridine-2,6-dicarboxamide pincers for applications including heterogeneous catalysis, metal-ion sequestering and chiral separation. Prior to the exploration of solid-phase techniques, a number of novel pincer-like model compounds based on bis-(4-substituted) pyridine-2,6-dicarboxamides were synthesised and their molecular and metal-ion binding properties investigated. Crystallography was used to probe their behaviour in the solid state and UV-visible titrations were performed in order to investigate the formation of metal-ion complexes in solution. The model compounds also formed the basis of the solid-phase aspect of this work. Several different routes towards the immobilisation of the pyridine-cored pincers on polystyrene resin supports were in:y'estigated. Two strategies were found to be particularly useful: (i) using an ether-based linkage for linking 4-hydroxy-substituted pincers to Merrifield resin; and (ii) using a secondary amine linkage for linking 4chloro- substituted pincers with aminomethyl resin. The search for an all-carbon linkage from resin support to pincer unfortunately proved to be unsuccessful. The use of pincer-like ligands in catalysis is well documented in the literature and attempts were made to match some of the metal-ion pincer-complexes prepared in this study with catalytic reactions. A number of novel esters were prepared during the course of this work and an investigation into their solid-state properties was undertaken.
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Cross-coupling, catalysts and chirality : a computational and structural studyMcMullin, Claire Louise January 2012 (has links)
No description available.
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Diphosphines with PXP backbones for chromium-catalysed ethene oligomerisationJaltai, Judit January 2010 (has links)
No description available.
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Transition Metal Catalysed Dehydrocoupling of Amine- Borane Adducts : Mechanistic Insight and ApplicationsSloan, Matthew Edward January 2009 (has links)
No description available.
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195 |
Towards organocatalysis of hydorgen peroxide ooxidationsLiu, Mumu January 2008 (has links)
No description available.
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Synthesis and resolution of a pentadeuterated monodentate P*-chiral phosphine and conversion to an isotopically desymmetrised Trost modular ligandFilali, Emane January 2009 (has links)
No description available.
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197 |
Iron-Catalysed Cross-Coupling : Exploiting Zinc- and Boron-Based NucleophilesHuwe, Michael January 2010 (has links)
No description available.
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Novel catalysts and additives for ruthenium-based metathesis systemsRobinson, Alan January 2009 (has links)
No description available.
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199 |
Rhodium-phosphinite catalysts for the ortho-arylation of phenolsLong, Philip January 2010 (has links)
No description available.
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200 |
Ignition, burning, and explosion of gunpowderBlackwood, J. D. January 1952 (has links)
No description available.
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