Browsing Chemistry by Date of Publication
Now showing items 41-60 of 1270
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The origin of the electron distribution in SnO
(2001)The origin of the electron distribution in SnO Graeme W. Watson Department of Chemistry, Trinity College, Dublin 2, Ireland ~ Received 12 September 2000; accepted 17 October 2000 ! Gradient corrected density functional ... -
The adsorption of simple amines on platinum surfaces
(Trinity College (Dublin, Ireland). School of Chemistry, 2001)This thesis presents the results of an investigation of the adsorption of methylamine, dimethylamine, trimethylamine and ethylenediamine on Pt(111) and Pt(331). The chemical composition and geometric structure of the clean ... -
Enantioselective receptors for anionic species
(Trinity College (Dublin, Ireland). School of Chemistry, 2001)This project aimed to design, synthesise and test neutral, tripodal steroid receptors based on cholic acid 1 that were capable of binding to carboxylates (especially N-acyl-a-aminoacid carboxylates), and differentiating ... -
A study of anionic drug transport processes governing passive and enhanced transdermal delivery
(Trinity College (Dublin, Ireland). School of Chemistry, 2001)The research contained herein is directed at defining some of the factors which govern the passive and enhanced transdermal transport of anionic drugs and will extend current knowledge which largely pertains to the analogous ... -
Studies on the synthesis and reactivity of 2-cyanoacrylate esters and 2-cyanoacrylic acid
(Trinity College (Dublin, Ireland). School of Chemistry, 2002)This thesis is about studies carried out on the synthesis and reactivity of 2- cyanoacrylic acid and 2-cyanoacrylate esters, and is divided into four chapters. Chapter 1 provides an introduction and includes a complete ... -
Investigations of the potential use of ruthenium-ODN conjugates as antisense agents in chronic myeloid leukaemia
(Trinity College (Dublin, Ireland). School of Chemistry, 2002)The work presented in this thesis describes the synthesis of two ruthenium oligodeoxynucleotide (ODN) conjugates and their application as potential photoactive antisense agents in a model Chronic Myeloid Leukaemia (CML) ... -
Synthesis and photochemical reactions of 6-alkenyl-3-phenylcyclohex-2-enones
(Trinity College (Dublin, Ireland). School of Chemistry, 2002)The synthesis and photochemical reactions of a series of molecules containing both the 3-phenylcylohexenone moiety and an C-6 substituted alkenyl side chain (2- propenyl, 3-butenyl and 4-pentenyl) are described. The C-6 ... -
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 ... -
Early and late transition metal comlexes incorporating p-Block oxo-anions
(Trinity College (Dublin, Ireland). School of Chemistry, 2002)The research presented in this thesis lies within the general area of supramolecular and coordination chemistry. More specifically, this project involved the synthesis of early and late transition metal complexes incorporating ... -
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 ... -
Studies towards oligodeoxynucleotide conjugates as potential photoactive antisense agents in chronic myeloid leukaemia
(Trinity College (Dublin, Ireland). School of Chemistry, 2002)The research presented in this thesis concerns the synthesis of oligodeoxynucleotide (ODN) conjugates and their use in the photochemical induction of oxidative damage to specific nucleic acid bases in a complementary ODN ... -
Towards a comprehensive system for the recognition of double helical DNA : Components for base pair recognition in the major groove
(Trinity College (Dublin, Ireland). School of Chemistry, 2002)This thesis describes the attempted synthesis of sequence selective double-stranded DNA-binding ligands. It had been intended to provide a comprehensive DNA recognition system via two different tricyclic heterocyclic motifs. ... -
The reactivity of diazabutadienes towards low oxidation state group 13 iodides and the synthesis of a new gallium(I) carbene analogue
(2002)The reactions of two diazabutadiene ligands, Ar-DAB [(ArN[double bond, length as m-dash]CH)2 , Ar = 2,6-Pri2C6H3] and But-DAB [(ButN[double bond, length as m-dash]CH)2] with either GaI or an AlI3/Al mixture have afforded ... -
Two-dimensional material inks.
(2002)The development of new and more accurate fabrication technologies has, in the past few years, boosted interest in advanced device manufacturing. 2D materials, thanks to their diverse properties and dispersibility in liquid ... -
Preparation of oxime oxalate amides and their use in free-radical mediated syntheses of lactams.
(2002)Photosensitised decomposition of oxime oxalate amides is a useful new route to carbamoyl radicals that may cyclise to afford β- or γ-lactams. -
Transition metal complexes of triphosphorus macrocycles: A new class of homogeneous olefin polymerisation catalysts.
(2002)Some early transition metal (Ti, V, Cr) complexes of the triphosphorus macrocycle 1,5,9-triethyl-1,5,9-triphosphacyclododecane, [12]aneP3Et3, and related derivatives [12]aneP3R3 (R = Ph, C3H6OMe) have been examined for ... -
A study of Hydrogen-Deuterium exchange on the photophysical properties of Ruthenium (II) Polypyridyl complexes
(Trinity College (Dublin, Ireland). School of Chemistry, 2002)This main aim of the present study is to investigate the effect of protium-deuterium exchange on the photophysical and excited state energetics of Ru(ll) complexes by UV-Vis absorption, both steady-state and time-resolved ... -
Bidentate N-Heterocyclic carbene complexes of group 13 trihydrides and trihalides.
(2002)top Treatment of the potentially chelating bis-carbene, 1,2-ethylene-3,3′-di-tert-butyl-diimidazole-2,2′-diylidene, EtIBut, with [MH3(NMe3)], M = Al, Ga, In, in a 1 ∶ 1 or 1 ∶ 2 stoichiometery led to good yields of the ...