Chemistry (Theses and Dissertations): Recent submissions
Now showing items 221-240 of 435
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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 ... -
Novel Ir(III)-based Triplet Photosensitisers For Triplet-Triplet Annihilation Upconversion
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2019)Chapter 1 contains introduction to the topic of triplet-triplet annihilation upconversion (TTA-UC), including the process of upconversion, the properties of efficient photosensitiser (PS) molecules and the other uses that ... -
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 ... -
Synthesis of lasiodiplodin and other benzo-fused lactones - studies into N-(4-Pyridyl)amides
(Trinity College (Dublin, Ireland). School of Chemistry, 2004)Chapter 1 contains an overview of the origins, properties and syntheses of medium and large-ring lactones. A wide range of cyclisation methods is presented, including the acylative cleavage of tetrahydrofuran derivatives ... -
Explorations in solvaton models of solvation within a quantum chemical framework
(Trinity College (Dublin, Ireland). School of Chemistry, 2000)The purpose of this thesis is to investigate the potential of developing a tractable model for solvation of large systems within a quantum chemical framework. Candidate computational methods are reviewed ranging from ab ... -
Electrochemical Studies of the Oxygen Evolution Reaction at Mn, Ni/Co Mixed Oxide Electrodes in Aqueous Alkaline Solution
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2019)There has been an abundance of publications over the last twenty years on electrode materials proposed to be suitable catalysts for the oxygen evolution reaction (OER) in alkaline solutions. Although it is widely accepted ... -
The synthesis and photochemistry of some 3-phenylenones
(Trinity College (Dublin, Ireland). School of Chemistry, 2003)The excited triplet state of 3-phenylcyclohexenone has been studied by laser flash photolysis and time-resolved infrared spectroscopy. Laser flash photolysis has been used to determine rate constants of decay of excited ... -
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 ... -
Towards carbohydrate recognition in aqueous media
(Trinity College (Dublin, Ireland). School of Chemistry, 2002)Chapter One provides a brief introduction to supramolecular chemistry. The types of interactions involved in host-guest chemistry are discussed as well as the principles behind the design of a receptor. Chapter Two examines ... -
Preparation of uniform ZnO microparticles by hydrothermal methods; Conventional vs. microwave heating
(Trinity College (Dublin, Ireland). School of Chemistry, 2001)Uniform particles of ZnO and Zn(OH)2 have been prepared in the micron size range, using a number of hydrothermal methods. In a forced hydrolysis procedure, when aqueous zinc nitrate solutions are reacted with sodium ... -
The synthesis of prodrugs derived from PaTrin-2
(Trinity College (Dublin, Ireland). School of Chemistry, 2003)Chemotherapeutic alkylating agents, like triazenes and nitrosoureas, whose mechanism of action involves the modification of guanine residues at the 06 -position in DNA are often rendered ineffective by the repair enzyme ... -
New metallasiloxane complexes of aluminium and lanthanides
(Trinity College (Dublin, Ireland). School of Chemistry, 2004)The main objective of this project was to develop novel metalIasiloxane complexes through a variety of synthetic strategies. The work focused mainly on aluminium and lanthanide metallasiloxanes. The catalytic properties ... -
Anionic polymerisation photoinitiated by ruthenium polypyridyl complexes
(Trinity College (Dublin, Ireland). School of Chemistry, 2000)A new group of photoinitiators of ethylcyanoacrylate monomers based on ruthenium polypyridyl complexes has been investigated. The photoinitiators, of general formula [Ru(DMB)2(L)2]2+, where L = 4-picoline, 2-picoline, ... -
Synthesis and characterisation of nanocrystalline ZnO for electronic applications
(Trinity College (Dublin, Ireland). School of Chemistry, 2002)The main focus of this work was to develop novel industrially viable procedures, based on sol gel technology, for the preparation of nano-size doped ZnO materials for varistor applications. Initially three well-established ... -
Synthesis and biological evaluations of novel 1,8-naphthalimide based anti-cancer agents
(Trinity College (Dublin, Ireland). School of Chemistry, 2003)This thesis, titled "Synthesis and Biological Evaluations of Novel 1,8-Naphthalimide based Anti-Cancer Agents" is divided into six chapters. The first chapter, the introduction includes firstly a brief examination of cancer, ... -
Synthesis and electrochemical characterisation of polypyrrole and novel n-substituted polypyrrole conducting polymers
(Trinity College (Dublin, Ireland). School of Chemistry, 2004)In this study the synthesis of novel redox substituted pyrrole monomers was achieved. Subsequent investigations into the electrochemical behaviour of the hybrid monomers and polymers were carried out. The study was to ... -
Coordination and hydrogen bonded networks featuring 4,4'-dicarboxy-2,2'-bipyridine
(Trinity College (Dublin, Ireland). School of Chemistry, 2004)The research presented in this thesis lies within the general area of supramolecular and coordination chemistry. More specifically, this project involves the study of 4,4'-dicarboxy-2,2'-bipyridine (4,4'-H2dcbp) as a linker ... -
Towards binuclear metal complexes as probes for DNA : a study of bis-phenanthroline ruthenium (II) dipyrido[3,2-d:2'3'-f]quinoxaline and its derivatives
(Trinity College (Dublin, Ireland). School of Chemistry, 2003)The synthesis of the novel ligand methyldipyrido [3,2-f:2',3'-h]quinoxaline-2-carboxylate (mdpqc), with an electrophilic site for the attachment of a flexible tail, is presented. The synthesis, purification and characterisation ... -
Novel photophysical and sequence based probes for DNA
(Trinity College (Dublin, Ireland). School of Chemistry, 2003)The aim of this research project was to develop novel DNA photophysical and sequence based probes. The sequence based probes were designed to target the diagnostic bcr/abl sequence of the Philadelphia chromosome that is ... -
Novel macrocyclic and acyclic ligands for metal ion coordination - design, synthesis and physical evaluation
(Trinity College (Dublin, Ireland). School of Chemistry, 2003)Supramolecular chemistry is a relatively young discipline dating back to the late 1960s and early 1970s and, as such, is a highly diverse and dynamic field incorporating organic, inorganic and physical chemistry. Much of ...
