Chemistry
Recent Deposits
-
Modelling the structures of metallic clusters
Metallic nanoparticles (clusters) are collections of metallic atoms that are bound together to form structures between 1 - 500 nm in diameter. Metallic clusters have potential in many practical applications due to their ... -
Carbazole complexes as catalysts for hydrogen evolution and CO2 reduction
In chapter 1, after an introduction to Schiff bases, a literature survey of synthetic routes to the key diformyl-carbazole head units, required for all ligands made in this thesis, is discussed. An overview of the previously ... -
Determining the Geographical Origin of Cocoa Beans in Chocolate using Stable Isotope Ratios
Sustainability of cocoa bean farms is becoming an increasingly important matter. With more chocolate showing more sustainability labels, there needs to be confidence in the consumer's mind on these labels. One way in which ... -
Copper & friends: Luminescence & triazole based switching
This thesis describes attempts towards producing a new motif for Cu(I/II) switching that incorporates CuAAC synthesised 1,2,3-triazoles. A variety of techniques is used to explore the properties of new and model ligands, ... -
Amino bolaform surfactants as structure directing agents for super-microporous materials
The synthesis and characterisation of new asymmetric bolaform surfactants incorporating tertiary amine functionality is presented, as well as the elucidation of their surfactant and aggregation properties. The use of the ... -
N-Alkylation of imidazoles
The regioselectivity of N-alkylation in unsymmetrical imidazoles was studied. The ambident nature of imidazole was scrutinised in an examination of substrate (ie. substituent(s)), alkylating agent, and medium effects ... -
Towards predictable tuning of spin crossover
Spin crossover (SCO) active metal complexes are highly versatile materials thanks to their sensitivity to tiny physical or chemical environmental changes. This property makes them very useful for a wide range of applications: ... -
Catalysts for the hydrogen evolution reaction
There are many acute global challenges which have the potential for unprecedented adverse impacts on human health and global ecosystems. These include climate change, exceptional wildfires, and ocean acidification, all of ... -
Expanding the utility of the zinc and cadmium stable isotope micronutrient proxies, and reconstructing palaeo-productivity through the last deglaciation
The oceanic biogeochemical cycling of trace metal micronutrients is being progressively developed to assess the efficiency of the ocean’s ‘biological pump’, atmospheric carbon dioxide (CO2) sequestration, and ocean-atmosphere ... -
Biogeochemical cycling of trace metals in shelf regions: The importance of cross-shelf exchange
Marine phytoplankton form the base of the marine food web and are fundamental to the efficiency of the ocean’s ‘biological pump’. The biological pump is especially important in the homeostasis of atmospheric CO2 levels ... -
Spin crossover in iron(II) dinuclear helicates and tetranuclear cages
Amongst the 151 discrete di- to poly-nuclear spin crossover (SCO) active assemblies of Fe(II) published before July 2020, only 19 are Fe(II) triply bridged dinuclear helicates (Fe2L3) and only 6 are edge bridged tetranuclear ... -
On the functions of palladium (II) cages
This thesis consists of four chapters. Chapter 1 provides an overview of metallosupramolecular chemistry, detailing the three main approaches to self-assembled metallosupramolecular architectures: the ligand direct ... -
Discoveries from the alpine daisy Celmisia viscosa: unique diterpenes and flavones, and variation within the species
This thesis focuses on the natural product chemistry of the native Alpine daisy, Celmisia viscosa. Previous work on C. viscosa has shown the presence of the diterpenes epimanool and the rare halimadienol, also present were ... -
Carbon-rich cavitands from reduced-symmetry resorcin[4]arenes
Cavitands (or container molecules) possess an enforced cavity suitable for binding small guests in solution and the solid state. The aryl units of arene-rich cavitands act as both structural elements and binding sites to ... -
Investigating the Vibrational and Electronic States of Various pi-Conjugated Systems
The vibrational and electronic properties of a range of pi-conjugated systems were explored. Such systems included some donor-acceptor dyes in which their symmetry made computational analysis of their charge-transfer ... -
Exploration of the techniques and applications of δ2H, δ18O and δ13C stable isotope analysis for the authentication of raw cotton
As the practices of fraud and use of child labour in the cotton industry become more sophisticated and harder to prevent[1], undermining detection using falsified documentation becomes easy to achieve[2]. Stable isotopes ... -
Towards the synthesis of hydrogen bonded frameworks
Hydrogen-Organic frameworks (HOFs) are supramolecular materials constructed by linking organic molecules through intermolecular hydrogen bonds. HOFs are a lightweight alternative to MOFs and have been shown to be effective ... -
Thermochemical heat storage system utilizing low-grade heat sources: combined investigations, material development, design and integration
The cost of space heating is dependent on electricity prices because of its significant utilization of electricity. There was a 60% increase in the unit electricity price between 2005 and 2019 which is sure to further ... -
Donor acceptor systems; a study using vibrational and electronic spectroscopies and computational modelling
Spectroscopic techniques, namely electronic and vibrational spectroscopy, have been shown to be very powerful tools in providing insight into the excited state nature and dynamics of compounds and complexes. A mixture of ... -
Isoreticulation of an adamantane-based lithium framework
Isoreticulation is the “tweaking” of the structure of an already established metal-organic framework (MOF) to alter certain properties, while still maintaining the original parent topology. This work investigated the ...