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Showing 1 to 16 of 16 for “"Gold(III)"”.
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Synthesis of cyclometalated gold (III) complexesfunctionalized by alkynyl derivatives. Study of the interaction with DNA secondary structures.
… thesis explores the synthesis of cyclometalated gold(III) complexes functionalized by alkynyl ligands, as well as the study of the interaction of the studied complexes with DNA secondary structures. In this work, bidentate and tridentate ligands, in particular derived from both phenylpyridine and …
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Synthesis and reactivity of Gold(ΙΙΙ) complexes with pincer ligands
… and reactivity of catalytically relevant gold(III) species supported by pincer ligands. The tridentate diphenylpyridine ligand was found to stabilise monomeric, terminal hydroxides of gold(III) which are reactive synthons for new metal complexes. Chapter 1 explores the chemistry of …
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ΦΑΣΜΑΤΟΣΚΟΠΙΚΗ ΜΕΛΕΤΗ ΑΕΡΙΩΝ ΣΥΜΠΛΟΚΩΝ ΣΕ ΥΨΗΛΕΣ ΘΕΡΜΟΚΡΑΣΙΕΣ ΣΕ ΣΥΣΤΗΜΑΤΑ ΧΛΩΡΙΟΥΧΩΝ ΑΛΑΤΩΝ ΤΩΝ ΣΙΔΗΡΟΥ, ΧΡΥΣΟΥ ΚΑΙ ΑΛΟΥΜΙΝΙΟΥ
… STUDY TWO COLORED VAPORS SYSTEMS, THOSE OF IRON (III) CHLORIDE-ALUMINUM CHLORIDE AND GOLD (III) CHLORIDE- ALUMINUM CHLORIDE. IN BOTH SYSTEMS, COMPLEX MOLECULES ARE FORMED IN THE VAPOR PHASE. THE TECHNIC OF HIGH TEMPERATURE ROTATING RAMAN CELL WAS DEVELOPED AND USED IN ORDER TO BE ABLE TO OBTAIN …
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The chemistry of gold with unsaturated organics: coordination, activation and catalysis
The aim was to understand gold‟s reactivity with unsaturated organic bonds. We focused on the role of supporting ligands, activating agents and the organic substrates employed in such reactions. Gold tetrafluorophthalimidates have been isolated, with coordination found to be surprisingly strong; no …
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Synthesis and Antimalarial evaluation of Gold Thiosemicarbazone Complexes and Polyamine-Thiosemicarbazone Dendrimers
… of thiosemicarbazones (TSCs) and their novel gold complexes and dendrimers as potential antimalarial agents. A series of TSCs were synthesised in one step using Schiff base chemistry. On the other hand pyrazoline analogues were obtained in two steps using both Mannich and Schiff base …
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Iron (III) Chloride doping of large-area chemical vapor deposition graphene
… Vapor Deposition (CVD) graphene using Iron (III) Chloride (FeCl 3). It is shown that evaporating FeCl3 can increase the carrier concentration of monolayer graphene to greater than 7x1 0 3CM2 and achieve resistances as low 72[Omega]/sq. We also evaluate other important properties of the doped …
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The Development of Sustainable Hydrometallurgical Processes for the Recovery of Precious Metal
… the adsorption and simultaneous precipitation of gold as flakes. This is with a view to establishing the electrochemical study of the adsorption and evaluate pre-treated cedar wood bark as possible adsorbent for gold in various solutions. The research plan for this project is divided into two …
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Surface-Enhanced Vibrational Spectroscopies using Electrodeposited Anisotropic Gold Nanoparticles
Electrodeposited anisotropic gold nanostructures with the morphology of daggers are produced from a plating solution of gold (III) salt and 4-methoxypyridine (MOP) on a thin film indium tin oxide (ITO) working electrode. The gold nano-daggers (AuND) were demonstrated to be suitable for …
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Activation Of Tumor Cell Death Program By Targeting The Ubiquitin-Proteasome Pathway: Significance In Cancer Treatment And Prevention
… complexes, including those of copper, zinc, gold, and tin could activate tumor cell death by inhibiting the proteasome. Therefore, it is proposed that gallium could similarly act as a proteasome inhibitor and apoptosis inducer in human tumor cells. The data presented in this dissertation …
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Halogen-elimination photochemistry and oxygen-activation chemistry of late transition-metal complexes
… is described. Studies of phosphine-terminated gold(III) halide complexes demonstrated that efficient halogen photoelimination can be promoted by ligand-to-metal charge-transfer (LMCT) excitation, in complexes devoid of a formal metal-metal interaction. In addition, gold was partnered with …
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Synthesis of Well-Defined N-Heterocyclic Carbene (NHC) Complexes of Late Transition Metals
… synthesis of well-defined organosilver and organogold complexes bearing NHC ligands. In addition, two short chapters describe briefly the synthesis of NHC acetylacetonate palladium(II) complexes, and the use of NHC ruthenium(II) indenylidene complexes in ring opening metathesis polymerization …
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Pioneering investigations into organometallic electrochemistry
… The electrochemical characterisation of gold(III) hydride, hydroxide and chloride pincer complexes based on a backbone of a doubly cyclometalated 2,6-bis(4’-tert-butylphenyl) pyridine ligand was performed, in which it was determined that upon reduction of the AuIII complexes, an …
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Indoles y pirroles alquinil funcionalizados: síntesis y transformaciones catalizadas por complejos de oro(III)
Desde su descubrimiento en 1866 por Adolf von Baeyer, el indol se ha convertido en una de las moléculas orgánicas más estudiadas. La importancia de esta estructura y su amplio espectro de aplicaciones justifican la acepción de “The Lord of The Rings” (“El Señor de los Anillos” en castellano) de los …
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The Chemistry of Cycloaurated Complexes
… cells) than the parent dichlorides. The nitrogen-gold coordinate bond is relatively robust and is not cleaved by cyanide or dithiocarbamate ligands. The reaction of (2-AuCl₂C₆H₄)Ph₂P=N-Ph with PPh₃ results in substitution of the chloride ligand trans to the nitrogen (shown by an X-ray crystal …
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The Study of Au(III) Compounds and their Interaction with Zinc Finger Proteins
<p>Gold compounds have been used in medicine dating back as early as 2500 BC. Over the years gold(I) and gold(III) compounds have been used and designed to target rheumatoid arthritis, cancer, and viral diseases. New drug targets have been found for gold compounds that give insight into their …
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Synthese von Gold(I)-Dithioharnstoff-Methansulfonat und dessen Anwendungsmöglichkeiten
… eines elektrolytischen Verfahrens war es möglich Gold(I)-Dithioharnstoff- Methansulfonat darzustellen. Dabei konnte auf den Einsatz von Cyaniden, Sulfiden, Sulfiten und Thiosulfaten verzichtet werden. Eine zeitintensive Synthese, über Gold(III) mit anschließendem Reduktionsschritt zum Gold(I), …