Browsing Chemistry (Theses and Dissertations) by Title
Now showing items 173-192 of 398
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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 ... -
Metallo-Supramolecular and Bioinspiried Coordination Compounds for H2O Oxidation
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2020)Ever-increasing energy demands and associated climate change issues impose imperative scientific challenges to society. Switching to an economy based on the carbon-free, high density energy carrier H2 represents a promising ... -
Methods Development for the Synthesis of Biologically Relevant Porphyrins and Porphyrin Rigid Linker Arrays
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2022)This research focuses on two main aspects: The synthesis of new derivatives of naturally occurring porphyrins and the preparation of non-natural chromophore-rigid linker conjugates as potential bioisosteres and mimics of ... -
Mimicking ribonucleotide reductases: Biomimetic manganese complexes and their reaction with superoxide
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2019)An important discovery in class Ib ribonucleotide reductase’s chemistry has been the identification of a MnII2 active site, that required a superoxide anion (O2•–), rather than dioxygen (O2), to access a high-valent MnII2 ... -
Modelling of Perovskite-based materials for intermediate temperature solid oxide fuel cell cathodes
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2018)In recent years it has become clear that a move to cleaner, more efficient energy generation is required. Solid oxide fuel cells (SOFCs) are a promising technology for electricity generation as they can overcome combustion ... -
Modulating supramolecular structures and topologies of coordination polymers and networks using the iminodiacetic acid substituted aromatic ligands
(Trinity College (Dublin, Ireland). School of Chemistry, 2011)Chapter 1 introduces the reader to the research area described in this thesis. It puts the work into context and provides appropriate literature references. The chapter details the objectives of the work and presents the ... -
Molecular Engineering of Porphyrins as Organocatalysts and Methods Development for New Highly Substituted Porphyrins
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2019)Chapter 1 introduces the N–H…X binding motif in tetrapyrroles, which forms the basis of the research carried out on organocatalytically active porphyrins in Chapters 3.1–3.3. Specifically, the role of porphyrin(oid) ligands ... -
Molecular simulations of poly(3-alkylthiophene)s : thermochromism and transport behaviour of dopants
(Trinity College (Dublin, Ireland). School of Chemistry, 2001)The solubility, processability, environmental stability and thermochromism of poly(3-alkylthiophenes) (P3ATs) in comparison with other π-conjugated conducting polymers make these materials attractive choices for both ... -
Multicomponent porphyrins as platforms for applications with nanomaterials and in DSSCs
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2019)The aim of this research was to investigate different multicomponent porphyrin systems. Special interest was put on donor-acceptor units, the specific molecular arrangement of units within the multicomponent systems as ... -
Multimodal magnetic nanostructures
(Trinity College (Dublin, Ireland). School of Chemistry, 2009)The objectives of this thesis are to develop new iron oxide and cobalt ferrite (CoFe2O4) based nanocomposites and their fluorescent-magnetic derivatives with a range of potential biomedical applications. The major aims ... -
N-containing polyaryl ligands in coordination and supramolecular chemistry
(Trinity College (Dublin, Ireland). School of Chemistry, 2007)Part 1 describes the synthetic route and the characterisation of a family of nitrogen heterosuperbenzene compounds. Those polyaromatic ligands, which contain a fused dipyrimidine unit possess unusual photophysical properties ... -
N-Heterocyclic carbene-catalysed transformations : the crossed benzoin condensation and oxidative aldehyde esterifications
(Trinity College (Dublin, Ireland). School of Chemistry, 2016)The focus of this thesis is the development of a suite of heteroazolium ion-based salts as precursors to N-heterocyclic carbene (NHC) catalysts for a range of transformations involving aldehyde substrates. It has been ... -
N-Heterocyclic carbene-mediated reactions : controlling the fate of the Breslow Intermediate
(Trinity College (Dublin, Ireland). School of Chemistry, 2015)We have developed a highly efficient, broad scope, additive-free mild protocol for the oxidative carbene-catalysed esterification of aldehydes. We have unambiguously identified benzoin as the oxidised species in these ... -
NanoElectrochemical studies of 2D Materials for Energy Storage and Conversion using Scanning Electrochemical Cell Microscopy
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2023)Electrochemical systems are of critical importance in modern society as they enable the conversion of electricity from renewable sources into chemicals and materials. The integration of nanomaterials in energy storage and ... -
Nanoelectromechanical relays for low power integrated circuits
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2019)The semiconductor industry roadmap was described by Intel cofounder, Gordon Moore, fifty years ago when he predicted that the number of transistor devices on a silicon integrated circuit would double with every new generation ... -
Nanometer-size metal complexes : magnetic materials and DNA probes
(Trinity College (Dublin, Ireland). School of Chemistry, 2004)The work described in this thesis was carried out as part of the European TMR Network “Nanometer-size metal complexes” (Contract N ERBMRXCT980226). The synthesis of Cr(III) homoleptic and heteroleptic polypyridyl complexes ... -
Nanoparticle & luminescent ruthenium oligonucleotide conjugates
(Trinity College (Dublin, Ireland). School of Chemistry, 2011)The field of plasmonies is a rapidly growing area of research and holds much promise for the improvement of diagnostics. The work in this thesis outlines the advances that have been made to assemble the components needed ... -
Nanostructured carbon-based materials as sustainable electrocatalysts for energy conversion applications
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2022)Electrochemistry has recently gained increased attention as a versatile strategy for achieving challenging transformations at the forefront of organic chemistry. Electrochemistry’s unique ability to generate highly ... -
Nanostructured composite materials for solar energy conversion
(Trinity College (Dublin, Ireland). School of Chemistry, 2015)Sunlight is the largest of all available carbon neutral energy sources. Hence the development of solar energy devices, which can create energy from the sun are of extreme importance to society. In 1991, Gratzel et al. ... -
Naphthalimides Exhibiting Aggregation-Induced Emission for Bioimaging Applications
In this project, a 1,8-naphthalimide (Nap, compound 8) is functionalised with two triphenylamino (TPA) moieties which, by virtue of having multiple freely rotating aromatic rings, are capable of exhibiting aggregation-induced ...