Browsing by Author "Saunders, Graham C."

• 1,2-Bis{(pentafluorophenyl)phenylphosphino}ethane: A Probe for Configurational Stability in Three-Legged Piano Stool Complexes 

  Nieuwenhuyzen, Mark; Saunders, Graham C.; Smyth, E.C.M. Sarah (American Chemical Society, 2006)

  The pentafluorophenyl-substituted diphosphine (C₆F₅)PhPCH₂CH₂PPh(C₆F₅) has been prepared, as a 1:1.7 mixture of rac (1a) and meso (1b) isomers, in four steps from dppe. The reaction between [Cp*RhCl(μ-Cl)]2 and 1 in the ...

• Assessment of roughness and chemical modification in determining the hydrophobic properties of metals 

  Larmour, Iain A.; Saunders, Graham C.; Bell, Steven E.J. (Royal Society of Chemistry, 2008)

  “Etch and coat” methods, potentially useful for large scale production of superhydrophobic surfaces on metals, have been extended by introduction of a thin 20 nm Au interlayer which allowed thiol surface modifiers to be ...

• Base-Free Dynamic Kinetic Resolution of Secondary Alcohols Using “Piano-Stool” Complexes of N-Heterocyclic Carbenes 

  Marr, Andrew C.; Pollock, Ciara L.; Saunders, Graham C. (American Chemical Society, 2007)

  “Piano-stool” complexes of rhodium and iridium activated by fluorinated and non-fluorinated N-heterocyclic carbene (NHC) ligands were shown to be catalysts for racemization in the one-pot chemoenzymic dynamic kinetic ...

• Complex dependent regioselectivity in the nucleophilic substitution of fluorine of a coordinated tetrafluoropyridyl N-heterocycle carbene 

  Pachal, Sam R.; Saunders, Graham C.; Weston, Jessica K. (Elsevier, 2013)

  The tetrafluoropyridyl substituent of the N-heterocycle carbene ligand 1-(2,3,5,6-tetrafluoropyridyl)-3-benzylimidazolin-2-ylidene has been shown to undergo nucleophilic attack when coordinated to rhodium or silver. For ...

• Complexes of η⁵, κP-cyclopentadienyl-phosphine ligands by chelate-assisted dehydrofluorinative coupling; the coupling of bis{bis(pentafluorophenyl)phosphino}methane to η⁵-pentamethylcyclopentadienyl in a rhodium complex 

  Marr, Andrew C.; Nieuwenhuyzen, Mark; Pollock, Ciara L.; Saunders, Graham C. (Elsevier, 2006)

  The reaction between [{(η⁵-C₅Me₅)RhCl(μ-Cl)}₂] and (C₆F₅)₂PCH₂P(C₆F₅)₂ in refluxing benzene yields the singly linked complex [{(η⁵,κP-C₅Me₄ CH₂C₆F₄-2-P(C₆F₅)CH₂P(C₆F₅)₂)}RhCl₂] in which only one phosphorus atom is coordinated ...

• Theoretical study of electronic absorption spectra and photodissociation dynamics of atmospherically relevant molecules 

  Farahani, Sara (The University of Waikato, 2019)

  The absorption of solar radiation by atmospheric species and the corresponding photoinduced processes, define the chemistry of a planet's atmosphere. While many of these photoinduced processes and their effects are well- ...

  

• The Art of Coffee Roasting: Investigations into Sensor Development for the Application of Controlling Coffee Roasting 

  Kelly, Cameron Brian Desmond (The University of Waikato, 2018)

  In this thesis, I investigate novel methods of sensing change in roasting coffee. Coffee roasting is a vital step in coffee’s supply chain. It is the process that takes green coffee and transforms it via a series of many ...

  

• A Study on Supported Metal Catalysts Prepared from Colloidal Precursors 

  Jaine, Jacob Evan (University of Waikato, 2016)

  When metal nanoparticles are supported on the surface of an inert carrier, the resulting materials can become powerful heterogeneous catalysts capable of accelerating a diverse range of chemical reactions. Though there are ...

  

• Electrically Polarised Electrodes in DMSO and DMF electrolytes of Pseudohalide Salts: In situ IR studies supported by EXAFS/XANES and other techniques 

  Alwis, Kethsiri H.K.L. (University of Waikato, 2015)

  This thesis presents, subtractively normalised interfacial Fourier transform infrared spectroscopic (SNIFTIRS) investigations of anodically polarised nickel, copper and gold electrodes in pseudohalide-containing (i.e. NCO⁻, ...

  

• Rendering Titanium Superhydrophobic 

  Pachal, Sam Rewi (University of Waikato, 2012)

  Two methods are reported herein to render titanium metal superhydrophobic. A superhydrophobic surface by definition is one that shows a water contact angle of equal to or greater than 150˚,(1) while in contrast bare titanium ...

  

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