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- 1Beckers, Nicole
- 1Bunquin, Jeffrey
- 1Chakrabarti, D.
- 1Corkum, Elizabeth G
- 1D. E. Sparks
- 1Davis, B. H.
A New Approach to Molecular Hydrodesulfurization Catalysts: Allyl-capped Trialkylphosphoranimide-bridged Late First-row Transition Metal ClustersDownload
A series of new trialkylphosphoranimide allyl-capped clusters [M(ƞ3-allyl)(NPR)3]2, (M = Fe, Co or Ni, R = Et, tBu or Ph) were synthesized. The nickel dimers [Ni(ƞ3-allyl)(NPR3)]2, R = Et, Ph are diamagnetic and have been fully characterized using NMR spectroscopy, X-ray crystallography,...
A thorough overview of esters and their reductions is presented. A large focus was placed on reductions via homogeneous catalytic hydrogenation. Although several ester hydrogenation systems have been developed, the production of highly enantioenriched alcohols has generally relied upon the usage...
Characterization of asphaltene molecular structures by cracking under hydrogenation conditions and prediction of the viscosity reduction from visbreaking of heavy oilsDownload
The chemical building blocks that comprise petroleum asphaltenes were determined by cracking samples under conditions that minimized alterations to aromatic and cycloalkyl groups. Hydrogenation conditions that used tetralin as hydrogen-donor solvent, with an iron-based catalyst, allowed...
Design, Development and Mechanistic Study of Ruthenium-Based Catalysts for the Hydrogenation of Imides and AmidesDownload
Prior mechanistic studies demonstrate that trans-[RuH2((R)-BINAP)((R,R)-dpen)] is a remarkably active carbonyl reducing agent at low-temperatures in THF-d8. This dissertation describes the monohydrogenation of cyclic meso-imides using this catalyst and related complexes under mild conditions....
The Noyori-type catalyst trans-[Ru((R)-BINAP)(H)2((R,R)-dpen)] (6) and its analogues are among the most active and enantioselective ketone hydrogenation systems reported to date. Its applications towards other types of carbonyl compounds are, however, understudied. This dissertation describes the...
Empowering the Base Metals: Rational Design of Homogeneous Catalysts for Hydrotreatment, and Reduction of Organic UnsaturatesDownload
Hydrocarbon-soluble, low-coordinate, phosphoranimide-supported complexes of the base metals (iron, cobalt and nickel) were developed and evaluated for a range of stoichiometric and catalytic bond-forming and bond-breaking transformations. An unprecedented family of tetrametallic clusters of Co(I)...
Large polycyclic aromatic nitrogen containing asphaltene model compounds, with molecular weights from 535 to 702 g/mol, were catalytically hydrogenated and hydrodenitrogenated in the presence of a commercial NiMo/γAl2O3 catalyst in a stainless steel batch reactor at 370 °C and 17.9 MPa total...
Synthesis and screening of heterogeneous multimetallic nanoparticle catalysts for mono-, poly- and heteroaromatic hydrogenation activity under mild conditionsDownload
Nanoparticle catalysts have shown to be advantageous over traditional catalysts for many reasons and active for a wide variety of reactions. This thesis describes an approach for the synthesis and screening of heterogeneous multimetallic nanoparticle catalysts for aromatic hydrogenation activity...