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Browsing by Author "Bourne, Susan A"

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Aqueous Solution Equilibria and Spectral Features of Copper Complexes with Tripeptides Containing Glycine or Sarcosine and Leucine or Phenylalanine

Author: Vicatos, Giselle M ; Hammouda, Ahmed N ; Alnajjar, Radwan ; Bonomo, Raffaele P ; Valora, Gabriele ; Bourne, Susan A ; Jackson, Graham E Date: 10 Jan 2022 Copper(II) complexes of glycyl-L-leucyl-L-histidine (GLH), sarcosyl-L-leucyl-L-histidine (Sar-LH), glycyl-L-phenylalanyl-L-histidine (GFH) and sarcosyl-L-phenylalanyl-L-histidine (Sar-FH) have potential anti-inflammatory activity, which can ... Read more c b
Beneficiation of selected pesticides and an antihyperlipidemic agent via cyclodextrin complexation and co-crystallization

Author: Maurel, Vaughan Jean Date: 2016 The applications of many bioactive molecules are limited by their undesirable physicochemical properties, such as poor aqueous solubility and low thermal stability. The agrochemicals methyl- 2,5-dichlorobenzoate (fungicide, DCB) and fenthion ... Read more
Carboxylate metallogels - an adventure in supramolecular chemistry

Author: Zacharias, Savannah Clare Date: 2018 The field of supramolecular gels has attracted a great deal of attention as these versatile materials have been shown to be highly tunable and responsive to stimuli making them attractive for a multitude of potential applications such as drug ... Read more
Characterisation and topological analysis of novel metal-organic frameworks

Author: Davies, Kate Date: 2011 The investigation of complexes in the solid state has developed exponentially over the past few decades in terms of both crystal engineering and supramolecular chemistry. The preparation of new metal-organic frameworks and coordination polymers ... Read more
Chiral carboxylic acids and their effects on melting-point behaviour in co-crystals with isonicotinamide

Author: Lemmerer, Andreas ; Ba´thori, Nikoletta B ; Bourne, Susan A Date: 2008 The crystal structures of co-crystals of two systems of chiral carboxylic acids, optically active and racemic 2-phenylpropionic acid and 2-phenylbutyric acid, with isonicotinamide are reported to investigate the effects of the chirality of ... Read more
Complexation between cyclodextrins and phenylurea herbicides in solution and in the solid state

Author: Smith, Vincent Joseph Date: 2009 The author undertook the preparation of cyclodextrin inclusion complexes of four phenylurea herbicides (metobromuron, monolinuron, monuron and fenuron) using the kneading and co-precipitation methods in the solid state while also determining ... Read more
Computer simulation of nickel in blood-plasma following the in vitro investigations of complex formation chemistry with polyamine(amide) ligands

Author: Nomkoko, Edmund T ; Jackson, Graham E ; Nakani, Bandile S ; Bourne, Susan A Date: 2004 In- and out-of-cell potentiometric techniques have been used to determine the formation constants for nickel(II) with 3,3,9,9-tetramethyl-4,8-diazaundecane-2,10-dione dioxime (L1), N,N′-bis(2-hydroxyiminopropionyl)propane-1,3-diamine (L2) and ... Read more
Crystal engineering of dynamic metal organic frameworks for applications in chromic sensing and capturing of small molecules

Author: Mehlana, Gift Date: 2014 Crystal engineering of metal organic frameworks (MOFs) has developed rapidly over the years. This has been fuelled by useful properties endowed by these materials. MOFs present a unique platform to control chemical and physical properties ... Read more
Crystal engineering of novel organic-inorganic compounds of N- and O-donor dipyridyl ligands

Author: Moitsheki, Lesego J Date: 2006 Crystal engineering based upon organic-inorganic compounds has made rapid progress in recent years. These compounds are known to combine the inherent advantages of both organic and inorganic substances. In this thesis, a range of metal compounds ... Read more
Development of dermally absorbed copper(ii) complexes as potential anti-inflammatory drugs

Author: Vicatos, Giselle Marianthi Date: 2021 Rheumatoid arthritis (RA) is a debilitating disease affecting 5% of the world's population and there is no cure. Copper(II) complexes have been reported to have anti-inflammatory activity and alleviate the symptoms associated with the disease. ... Read more
Development of Pd(II)- and Pt(II)-based catalysts for polymerisation and oligomerisation of [alpha]-olefins

Author: Ndlovu, Mazwi Eugene Date: 2001 The polymers were investigated by DSC and TGA to determine their melting point endotherms and thermal stability. All polymers exhibited low thermal stabilities and low melting point endotherms. Read more
Halogen···Halogen interactions in host - guest systems

Author: Amombo Noa, Francoise Mystere Date: 2017 For a few decades now, halogen bonds which are non-covalent interactions, have gained a lot of interest in the science community due to their applications in diverse research areas. Halogen bonding (XB) is an interaction that occurs between ... Read more
Inclusion compounds of multipedal hosts

Author: Nash, Katherine Lindsay Gifford Date: 1997 The inclusion properties of three multipedal host compounds have been investigated. The host compounds : hexakis(3-hydroxy-3,3-diphenyl-2-propynyl)benzene (host 1), 1,2,3,5,6, 7-hexakis(3-hydroxy-3,3-diphenyl-2-propynyl)naphthalene (host 2), ... Read more
New crystalline forms of permethylated β-cyclodextrin

Author: Caira, Mino R ; Bourne, Susan A ; Mhlongo, Welcome T ; Dean, Pamela M Date: 2004 Two new crystalline forms of permethylated β-cyclodextrin are reported that contain methylglucose residues exclusively in the 4C1 conformation, in contrast to the known monohydrate, in which a single methylglucose residue adopts the 1C4 conformation. Read more
Physicochemical studies of the inclusion of selected agrochemicals in cyclodextrins

Author: Cruickshank, Dyanne Louise Date: 2011 Pesticides frequently display adverse properties such as low aqueous solubility, low stability, and high toxicity that limit their applications and render them environmentally hazardous. The possibility of improving these physical properties ... Read more
Preformulation solid-state supramolecular beneficiation of selected active pharmaceutical ingredients and a novel drug candidate

Author: Noonan, Terence James Date: 2018 The aim from the outset of the project on which this thesis is based was to make use of contemporary methods in the field of supramolecular chemistry to improve the suboptimal physicochemical properties of selected compounds for use in the ... Read more
Progressive design and self-assembly of supramolecular architectures : based on metallamacrocyclic nickel(II) complexes with bipodal tetra-alkylaroylbis (thioureas)

Author: Hallale, Oren Date: 2004 Rationally designed bipodal3,3,3',3'-tetraalkyl-l,1'-benzoylbis(thioureas) are used as pre-programmed cheiating ligands to form metallamacrocyclic square planar nickel(ll) complexes via self-assembly. Metal : ligand stoichiometries of either ... Read more
Reactions of halogens with Pt(II) complexes of N-alkyl- and N,N-dialkyl-Nʹ -benzoylthioureas: oxidative addition and formation of an I₂ inclusion compound

Author: Westra, Arjan N ; Bourne, Susan A ; Esterhuysen, Catharine ; Koch, Klaus R Date: 2005 The treatment of cis-[PtII(L1a/b-S,O)2] complexes of N,N-diethyl- (HL1a) and N,N-di(n-butyl)-N'-benzoylthiourea (HL1b) with I2 or Br2 in chloroform, leads to rapid oxidative addition to yield several geometric isomers of [PtIV(L-S,O)2X2] (X ... Read more
Structures and thermal analyses of Werner clathrates and coordination polymers

Author: Kilkenny, Mairi Date: 2001 The crystal structures of several organometallic host complexes and their inclusion compounds with small, polar, organic guests have been elucidated. These compounds form a diverse range of structure types, from hydrogen bonded networks of ... Read more
Supramolecular modification of selected antitubercular drugs

Author: Li, Jinjing Date: 2010 The author's objective was to prepare new solid phases of the antitubercular drug isoxyl [specifically polymorphs, solvates, cyclodextrin (CD) inclusion complexes and cocrystals] and to isolate and characterise a range of solvated forms of ... Read more

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