Browsing Chemistry by Title
Now showing items 592-611 of 1270
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Magnetic nanoparticle-supported catalysts and novel organocatalysts for enantioselective synthesis
(Trinity College (Dublin, Ireland). School of Chemistry, 2013)A study concerning the immobihsation onto magnetic nanoparticles of two useful classes of chiral organocatalyst which rely on a confluence of weak, easily perturbed van der Waals and hydrogen bonding interactions to promote ... -
Manganese and Rhenium triphosphorus macrocycle complexes and reactions with alkenes.
(2002)The synthesis of Re(III), Re(I) and Mn(I) compounds of the macrocyclic phosphine ligand 1,5,9-trialkyl-1,5,9-triphosphacyclododecane, 12[ane]P3R3 (R = Et, iBu) is described. The reaction of 12[ane]P3R3 with ReCl3(PPh3)2(CH3CN) ... -
Manipulation of enzyme activity via substrate based control: a new paradigm in drug design
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2020)This thesis documents our approach to the manipulation of enzyme activity in previously underexploited pathways through the design of artificial substrates. It was envisaged that this strategy would enable the discovery ... -
Mapping Conformational Changes in a Self-Assembled Two-Dimensional Molecular Network by Statistical Analysis of Conductance Images
(2019)A self-assembled two-dimensional (2D) film of tetra-phenyl-porphyrin-4-ferrocene molecules on Au(111) is studied by STM for the presence of intra- and intermolecular correlations in the configurations of the four-pendant ... -
Material characterisation of nanowires with intrinsic stress
(2017)When fabricating nanowires in a doubly-clamped beam configuration it is possible for a residual axial stress to be generated. Here, we show that material characterisation of metal and semiconductor nanowires subjected ... -
Mathematical modelling of diffusion in physico-chemical systems
(Trinity College (Dublin, Ireland). School of Chemistry, 2000)The purpose of this thesis was to investigate the usefulness of mathematical modelling as an aid to understanding the physico chemical processes of iontophoresis in transdermal drug delivery and electrochemical sensor ... -
Measuring the conductivity of single fibres
(2011)The methodology required to measure the conductivity of single fibres is outlined, the basic underlying physics discussed and recent pertinent examples culled from the scientific literature are presented for illustration. ... -
Mechanical properties of one-dimensional nano-systems
(Trinity College (Dublin, Ireland). School of Chemistry, 2010)The measurement of mechanical properties of nano-scale materials is paramount for their safe and efficient incorporation into devices. Techniques to perform these measurements are reviewed here with a particular interest ... -
The mechanism of oxygen reactions at porous oxide electrodes Part III: Water oxidation catalysis at RuO2/NiO mixed oxide electrodes
(2014)RuO2/NiO mixed oxide electrodes prepared by thermal decomposition were examined as potential water oxidation catalysts. Addition of just 10 mol% RuO2 to a NiO electrode was found to decrease the oxygen evolution reaction ... -
Mechanism of Oxygen Reactions at Porous oxide Electrodes. Part 2. Oxygen evolution at ruthenium dioxide, iridium dioxide and mixed ruthenium iridium oxide electrodes in aqueous acid and alkaline solution
(Royal Society of Chemistry, 2011)The kinetics mechanism of the oxygen evolution reaction at a series of RuO2/IrO2 mixed oxides in aqueous acid and alkaline solution has been examined using a variety of electrochemical methods. Factors affecting the ... -
Mechanistic insights into heterogeneous methane activation
(2017)While natural gas is an abundant chemical fuel, its low volumetric energy density has prompted a search for catalysts able to transform methane into more useful chemicals. This search has often been aided through the use ... -
Mesoporous Silica Materials as Drug Delivery: "The Nightmare" of Bacterial Infection
(2018)Mesoporous silica materials (MSM) have a great surface area and a high pore volume, meaning that they consequently have a large loading capacity, and have been demonstrated to be unique candidates for the treatment of ... -
Metal Nanostructure Synthesis via Surface Energy Driven Growth
(2016)Identifying new synthesis methods to produce single crystal metal nanowires has the potential to expand nanowire based technology integration and increase applications. The catalogue of single crystal metal nanostructures ... -
Metallated phosphites and related complexes and their catalytic application
(Trinity College (Dublin, Ireland). School of Chemistry, 2002)The orthometallation of triarylphosphite ligands at a palladium centre is described. The formation of the orthometallated palladium dimeric complex [{Pd(μ-Cl){P(OC6H2-2,6-tBu2)(OC6H3-2,4-tBu2)2}}2] 22 is reported and fully ...
