Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 10 of 10 for “"cationic complexes"”.
-
Neutral and cationic complexes of the rare earth metals : synthesis, characterisation and polymerisation catalysis
… most common starting materials for the access to cationic complexes of the rare-earth metals are the homoleptic tris(trimethylsilylmethyl) precursors [Ln(CH2SiMe3)3(thf)2]. The principal objective of this work has been to substitute the well-known CH2SiMe3 group for other fragments, and study the …
-
Synthesis and biological evaluation of trimeric 2,5-disubstituted benzimidazoles and related trinuclear ruthenium(II) organometallic complexes
… limit the scope of use of these platinum(II) complexes. Working towards addressing these issues, research has focused on the development of chemotherapeutic agents based on alternate platinum-group metals (PGMs), with ruthenium metallodrugs being among the most successful in this category. The …
-
Early transitional metal alkyl, alkylidene, and alkylidyne chemistry
CHAPTER 1. Zirconium and hafnium complexes of several new unsymmetric diamide ligands have been prepared and their proficiency in olefin polymerization reactions evaluated. The first set of supporting ligands examined are diamido-donor ligands that contain ethylene/o-phenylene "arms" and a …
-
A Study of the Interaction of some cationic Transition-Metal compounds with Carbon Monoxide and Nucleophiles
A number of novel cationic carbonyl complexes of ruthenium and rhodium have been synthesised and characterised. The work also investigates the attack of nucleophiles on such species and examines the feasibility of these reactions as a possible first step in the catalytic production of organic …
-
Electrostatic Self-Assembly of Linear and Nonlinear Optical Thin Films
… alternate adsorption of anionic and cationic complexes from aqueous solutions. Selection of the molecules in each layer, their orientation at the molecular level, and the order in which the layers are assembled determine the film's bulk optical, electronic, magnetic, thermal, …
-
Compuestos emisivos de Pt(II) e Ir(III) con aplicaciones biológicas y en iluminación de estado sólido
… design of new Pt(II) and Ir(III) cyclometallic complexes. The biological and characteristics properties of the emissive states of these compounds can be easily modulated by ligand modification. To this end, this PhD thesis focuses on the synthesis, characterisation and study of the optical and …
-
Ru,Rh,Ru Supramolecular Photocatalysts within Nafion® Membranes: Ion-exchange, Photoelectrolysis and Electron Transfer Processes
… to demonstrate a profound affinity for large cationic complexes, and the study of polymer-bound cations may provide insight regarding Nafion® morphology by contrasting molecular size with existing models. The trimetallic complex, [{(bpy)2Ru(dpp)}2RhBr2] 5+, is readily absorbed by ion exchange …
-
Utilisation of halophosphine and aminophosphine ligands in organoruthenium chemistry
… the syntheses and reactivity of areneruthenium complexescontaining halophosphine and aminophosphine ligands. Methylcyclopentadienylrutheniumchemistry is also developed together with corresponding tertbutylcyclopentadienylrutheniumchemistry. All the new compounds prepared arepseudo-octahedral …
-
Synthesis, radiolabelling and pharmacological evaluation of CO-releasing molecules
… the [2 + 1] approach, to form a series of cationic complexes. In addition, a second series of neutral bidentate (N,N) Mn(I) complexes were prepared. The ligands and complexes were characterised using a range of spectroscopic and analytical techniques, including 1H, 13C{1H}, and 31P{1H} NMR …
-
Small molecule mimics of hydrogenase enzymes: synthesis, protonation, and electrocatalysis
… of which undergo protonation to form hydride complexes and catalyze proton reduction. However, in all cases, the thermodynamic product of protonation is a bridging hydride, which is not biologically relevant. A number of phosphine substituted diiron complexes have been found to form terminal …