Browsing Chemistry (Theses and Dissertations) by Title
Now showing items 133-152 of 397
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Generation and Reactivity of Late Transition Metal Hydr(oxo) Complexes Supported by Tripodal Carboxamidate Ligand
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2022)Metal oxo complexes (M=O) are important mediators of oxidative transformations in biological systems.1 Their high reactivity and transient nature have limited their study, with only a handful of well characterized oxo ... -
Graphene : synthesis and applications
(Trinity College (Dublin, Ireland). School of Chemistry, 2012)Carbon is ubiquitous around us and has been studied extensively, yet it has never failed to surprise us. One of its isomers, graphene was discovered only recently and it was supposed not to exist in free form. Graphene is ... -
Guanidine based derivatives as potential anti-infective agents: Tackling protozoal diseases and Mycobacterium tuberculosis
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2022)Infectious diseases caused by microorganisms of the genus Trypanosoma (Human African Trypanomiasis-HAT), Leishmania (Leishmaniasis), Plasmodium (Malaria) and Mycobacterium (Tuberculosis) cause some of the deadliest human ... -
Guanidine-based DNA binders and strategies toward their platinum complexes as anticancer dual agents
(Trinity College (Dublin, Ireland). School of Chemistry, 2016)One in three people will be diagnosed with cancer in their lifetime. One of the main targets of chemotherapy is DNA. Platinum-based anti-cancer agents form covalent bonds with bases in the major groove of DNA in cancer ... -
Helium Ion Beam Irradiation of MoS2: Fabrication of 2D Memristors
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2020)A memristor is an electronic device which exhibits a non-volatile and reversible resistance change in response to an applied electric field. These properties make the memristor a potential prime component in the field of ... -
High-Throughput Computational Investigation of Homogeneous and Heterogeneous Water Splitting Catalysts
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2023)Understanding the sources of activity and stability in oxygen evolution reaction catalysts remains an open challenge. This thesis attempts to understand these factors by studying many catalysts for both homogeneous OER to ... -
High-valent dinuclear bis-μ-hydroxo complexes for PCET reactivity
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2021)High valent dinuclear bis-μ-hydroxo transition metals complexes are hypothesised to play a potentially crucial role in several enzymatic mechanism involving their high-valent dinuclear bis-μ-oxo counterparts such as soluble ... -
High-valent late transition metal complexes for hydrocarbon oxidation
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2022)"Saturated hydrocarbons constitute the main feedstocks for energy production but their oxidation to valuable fine chemicals is still very challenging. Therefore the design and optimization of new catalysts for the ... -
High-valent nickel complexes supported by pyridinedicarboxamidate ligands in hydrocarbon oxidation reactions
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2017)High-valent M=O and M-O-X complexes are hypothesised to be potent oxidising intermediates both in enzymatic and small-molecule catalysis. In contrast to those from groups 6-8, oxidants that contain late transition metals ... -
Highly substituted 2,3,7,8,12,13,17,18-octaethylporphyrins with meso aryl residues for application in NLO and sensors
(Trinity College (Dublin, Ireland). School of Chemistry, 2008)The synthesis of novel free base meso mono- and 5,10-disubstituted (A2- and AB-type) 2,3,7,8,12,13,17,18-octaethylporphyrins (OEPs) and of several meso trisubstituted AB-and AAB-type OEPs is reported with optimization ... -
Hybrid organic-inorganic materials : synthesis, solid state characterisation and solution studies of organoarsonate and -phosphonate functionalised coordination clusters and networks
(Trinity College (Dublin, Ireland). School of Chemistry, 2013) -
Hybrid organic-inorganic polyoxometalates : synthesis and characterisation of organoarsonate and organophosphonate functionalised polyoxovanadate clusters
(Trinity College (Dublin, Ireland). School of Chemistry, 2010)This thesis presents a significant contribution of research to the field of hybrid inorganic- organic polyoxometalates. Herein the functionalisation of polyoxovanadate clusters with aryl arsonates and aryl phosphonates is ... -
In Search of Highly Emissive Fully Organic Compounds for Application in Molecular Electronics
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2022)The contents of this thesis can be summarised with two separate undertakings, with an overall goal to design, synthesise, and study novel organic materials. The first undertaking (Chapter Two) required detailed synthetic ... -
In search of strong light-harvesting and long-lived Ru (II) and Ir(III) triplet photosensitisers
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2018)The Ph.D. thesis begins with a general introduction of triplet photosensitisers and their role in Triplet-Triplet Annihilation Upconversion (TTA-UC). It gives a short literature review of the photophysical properties of ... -
In-situ and Operando (Scanning) Transmission Electron Microscopy (S)TEM; a real-time investigation of energy storage devices and materials at the atomic level
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2021)In the modern age of ubiquitous mobile technology, demand for ever increasing battery capacity and size reduction in such devices is a key driving factor for this sector. Technology is currently striving to improve the ... -
Informational patterns in the genetic code : a chemical and informatics perspective
(Trinity College (Dublin, Ireland). School of Chemistry, 2010)The genetic code has been the subject of extensive investigation for over 50 years. In this research, we have employed various methods to derive empirical determinations of the informational characteristics of this biological ... -
The Interaction of Chiral Nanoparticles with Biological Objects
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2021)The main goal of this research is to investigate how different factors influence the induced optical activity of semiconductor nanoparticles (NPs) of various shapes and test the biological activity of NPs capped with chiral ... -
Investigating the Formation of Metal-Superoxides: Iron and Nickel Complexes Based on a 2,6-Pyridinedicarboxamide Ligand System
Metal-superoxide intermediates have been proposed to be key active intermediates in the catalytic cycles of a wealth of oxygen-activating enzymes in biology. Synthetically, many examples of such intermediates have been ... -
Investigation and theoretical modeling of the nonlinear optical properties of 5,10-A₂B₂ porphyrins
(Trinity College (Dublin, Ireland). School of Chemistry, 2012)An optical limiter is a device which is transparent to ambient light but becomes opaque upon high intensity laser irradiation. Such irradiation is dangerous to human eyes and light sensitive detectors. Porphyrins, which ... -
Investigation into nanostructured carbon-based materials for electrochemical applications
(Trinity College (Dublin, Ireland). School of Chemistry, 2015)Carbon materials, despite their ubiquitousness in nature and long studied properties, continue to be at the forefront of material research today. The last 20-30 years have seen renewed interest in structural allotropes ...