Chapter 1: The dimethylation of the C2-symmetric Pt-phosphido complex Pt((R,R)-Me-DuPhos)(IsPCH2PIs) (Is = 2,4,6-(iPr)3C6H2) to yield rac- and meso- [Pt((R,R)-Me-DuPhos)(IsMePCH2PMeIs)][OTf]2 represents an interesting case of the Horeau principle...
Metal ions confer structural stability and reactivity to a large number of proteins that use the amino acids histidine (His) and cysteine (Cys) to form stable metal-ligand complexes. The stability of metal-His and metal-Cys interactions and their...
A double-acceleration stage linear time of flight mass spectrometer (TOF MS) with Nd/YAG laser ablation cluster source was designed and constructed for cluster production, study and deposition. Cumulenic polycarbons SC n S ( n = 2-27) were...
Earlier in our laboratory, a facile synthesis of the 2- and 3-nitroindoles was realized. These compounds showed promise as powerful intermediates in the synthesis of novel structures and natural products. The reactivity of 2- and 3-nitroindoles...
Chapter one: Synthesis, resolution and application of P-chirogenic phosphines. This chapter serves as a general introduction, and gives a brief overview of the synthesis, resolution and applications of chiral organophosphorus compounds. In...
Chapter One. Synthesis and Structure of Chiral Pt(Duphos) Terminal Phosphido Complexes. Treatment of Pt halide precursors with a secondary phosphine in the presence of the base NaOSiMe 3 gave the terminal phosphido complexes Pt(Duphos)(Ph)(PMeIs)....
A novel synthetic route to the synthesis of 9-propyl-10-azacyclododecan-12-olide (1), a natural allomone isolated from the Mexican bean beetle pupa, is presented. The salient features of this synthetic route are a regioselective Beckmann...
Introduction. This chapter provides a brief overview of the thesis. Chapter 1: tert-butyl-diphosphabutarene - Synthesis and reactivity of a novel phosphacycle. Treatment of 1,2-bis(dichlorophosphino)benzene (12) with tert-butylmagesium chloride...
Free radicals (Chemistry). ; Electron donor-acceptor complexes. ; Ions.
In this study, the initial charge separation distance and its impact on free radical ion (FRI) formation are investigated in detail. Transient photocurrent techniques together with other spectroscopic methods were used with a series of donors and...
Metal ions. Binding sites (Biochemistry) -- Thermodynamics. Metalloenzymes. Cellular control mechanisms. Thermometric titration. Calorimetry.
The chemistry of biology is complex and there is a great deal that is not understood. A fundamental understanding of biochemical reactions is important to aid in the identification of undiscovered reactions and is critical to fully appreciate the...
The thermodynamic properties of pure polymers and polymer mixtures have been investigated using the so-called Born-Green-Yvon (BGY) lattice theory. Previous results applied pure component pressure-volume-temperature ( PVT ) data in order to...
Nanocomposite materials containing both gold and cobalt were synthesized using block copolymers as agents for controlling spatial organization of the nanoparticles. The targeted polymers are polystyrene- block -poly(alkyne-functional)styrene...
Abstract (Summary) Chapter One. Platinum-Catalyzed Asymmetric Alkylation of Bis(secondary) Phosphines. Efficient Screening and the Synthesis of an Enantiomerically Pure C 2 -Symmetric Diphosphine . Platinum-catalyzed asymmetric alkylation of...
Fluorine forms the strongest single bond to carbon, however, it is well established that transition metals can lengthen and weaken C-F bonds in fluorinated ligands. Described here are studies on the activation of C-F bonds in iridium compounds...
Since alkoxyamines, O-alkylated nitroxide derivatives, are important control agents for nitroxide-mediated polymerization, protocols for their synthesis should be straigh- forward, cost-effective, and versatile. We have utilized a facile method for...
I. Intermolecular C-S Bond Forming Reactions
The relatively small number of efficient C-S bond forming reactions in the literature prompted an investigation into the synthesis of allylic thioethers. The technology that we developed allowed us, in...