Browsing by Supervisor "Henderson, William"
Now showing items 1-20 of 24
-
A study of novel ferrocenyl-phosphorus compounds
(The University of Waikato, 1998)The intent of this investigation was to use the distinctive characteristics of hydroxymethylphosphine chemistry in order to create new ferrocenyl-phosphorus compounds, as well as carry out investigations into both their ... -
An investigation of beryllium coordination chemistry using electrospray ionisation mass spectrometry
(The University of Waikato, 2018)The electrospray ionisation mass spectrometric behaviour of various complexes of beryllium have been investigated in this thesis. These beryllium complexes were prepared in situ on a small scale by preparing appropriate ... -
Analysis of organosilicone surfactants and their degradation products
(The University of Waikato, 2000)In this work the analysis of the organosilicone surfactant Silwet L-77 and components thereof is described. The commercial product Silwet L-77 was demonstrated to comprise of ∼70% M₂D-C₃-O-(EO)ₙ-CH₃ (1),* ∼5% M₂D-C₃-O- ... -
Applications of Hydroxymethylphosphines
(University of Waikato, 2015)Hydroxymethylphosphines are compounds containing P-CH₂-OH functional groups. They have numerous applications, of which three types were explored in this project. The cross-linking ability of tris(hydroxymethyl)phosphine ... -
Asymmetric Ligands Derived from Carbohydrates
(University of Waikato, 2011)This thesis describes the incorporation of carbohydrate groups in thiourea, 1, or iminophosphorane, 2, ligands. Several carbohydrate acyl thioureas, 3, were synthesised from the reaction of protected and unprotected ... -
Electrospray mass spectrometric analysis of transition metal carbonyl clusters
(The University of Waikato, 2002)A key objective of this thesis was to develop Electrospray (Ionisation) Mass Spectrometry (ESMS) within organometallic chemistry, specifically as a technique for investigating transition metal carbonyl cluster chemistry. ... -
Electrospray-friendly ligands for the mass spectral analysis of transition-metal complexes
(The University of Waikato, 2002)The key aim of this project was to develop the concept of electrospray-friendly ligands as a new ionisation method for the analysis of neutral metal complexes by electrospray mass spectrometry (ESMS). This involved introducing ... -
Improved determination of nitrate concentrations and flow rates in freshwater using ‘Diffusive Gradients in Thin-films’
(The University of Waikato, 2021)Nutrient pollution, particularly by nitrate, is a persistent issue in waterways. Numerous mitigation strategies have been developed to address this pollution, such as denitrifying bioreactors. The monitoring, however, of ... -
An Investigation of the Multifunctional Alkylation Chemistry of [Pt₂(μ-S)₂(PPh₃)₄]
(University of Waikato, 2011)This thesis presents the studies on the multifunctional alkylation of the metalloligand [Pt₂ (μ-S)₂(PPh₃)₄] 1.1. Multifunctional organic groups which include semicarbazone and thiosemicarbazone, urea, isocyanate, guanidine, ... -
Isomerism of Complexes Containing Thiourea Dianion Ligands
(University of Waikato, 2014)This thesis reports the synthesis and characterisation of eight new platinum thiourea complexes. Thiourea dianion complexes of the type (Ph₃P)₂PtSC(=NR)NPh, R=Me, Et, Prⁿ, Prⁱ, Buⁿ and (Ph₃P)₂PtSC(=NPh)NR R=Buͭ , p-tol, ... -
Lanthanide Luminescence and its Applications in Forensic Science
(University of Waikato, 2011)Lanthanide compounds, specifically those containing europium and terbium can exhibit luminescent properties when combined with ligands that promote this characteristic. Lanthanide luminescence has proven to have an array ... -
Organophosphorus chemistry of camphene
(The University of Waikato, 1999)Chapter one reviews the literature relating to terpene-phosphorus chemistry. Topics include a summary of the phosphorus chemistry of the monoterpenes and terpenoids camphor, menthol, camphene and pinene. A general discussion ... -
Porphyrins and phthalocyanines as chemical visualisation reagents for latent fingerprint development
(The University of Waikato, 1999)The focus of the research presented in this thesis was the investigation of porphyrins and phthalocyanines as potential reagents for the development of latent fingerprints. Porphyrins and phthalocyanines are structurally ... -
Preparation of phosphinate-based ionic liquids for rare earth recovery
(The University of Waikato, 2023)The rare earth elements are vital components in many modern technologies, including green energy technology such as wind turbines and electric vehicles, however the extraction and separation of these elements remains a ... -
Several new methods for the development of latent and blood fingerprints
(The University of Waikato, 1999)Several new methods for the development of latent and blood fingerprints have been investigated as well as a preliminary appraisal of a technique for the estimation of post-mortem interval and age of blood stains. The ... -
Some metallacyclic complexes of the late transition metals
(The University of Waikato, 1999)The principal aim of this thesis is the synthesis and characterisation of four-membered metallacyclic complexes. Reactions of square-planar palladium(II), platinum(II) and gold(III) dihalide complexes with a variety of ... -
Stabilisation effects of ferrocenylalkyl groups on hydrides of heavier main group elements
(University of Waikato, 2013)New hydrides of heavier p-block main group elements with a ferrocenylalkyl moiety, Fc(CH₂)nEHm (Fc = (CpFeC₅H₄-); E = P, As, Si, Ge or Se; n = 1, 2, 4, 6 or 11; m = 1, 2 or 3) and FcCH₂P(R)H (R = CH₃, C₆H₁₁ or p-CH₂C₆H₄NO₂), ... -
Studies on the metallacyclic chemistry of thiourea monoanion and dianion ligands; synthesis, structures and theoretical investigations
(The University of Waikato, 2020)This thesis presents studies on the metallacyclic chemistry of thiourea dianion and monoanion ligands. The versatility of thioureas and their relatives (thiosemicarbazones and selenoureas) has been attributed to the ... -
Synergistic defensive effects of silicon and Epichloë endophytes on insect pests of agricultural grasses in New Zealand
(The University of Waikato, 2020)New Zealand has several insect pasture pests which cause economic losses of between $1.7 B and $2.3 B annually in the dairy, and ‘sheep and beef’ industries. Research on grass species defence provides insights into methods ... -
Synthesis and Characterisation of Cycloaurated Gold(III) Complexes with Bidentate (O,O), (N,S) and (S,S) Chelating Ligands
(University of Waikato, 2012)The reaction of C,N-coordinated gold(III) dihalides; BpAuCl₂ (Bp = 2 benzylpyridyl), AnpAuCl₂ (Anp = 2 anilinopyridyl) and TypAuCl₂ (Typ = 2 tolylpyridyl) with catecholate ligands in hot methanol and trimethylamine produced ...
