Browsing by Department "Chemistry, Department of"
Now showing items 1-20 of 436
-
1,3-Dipolar and 1,3,6-Tripolar Reactivity of 3-hydroxy- and 3-amino-1-N-arylazopropenes for Heterocycle Formation
(2019-12)3-Alkoxy-1-N-aryl azopropene structural motifs in the Eschenmoser-Tanabe Fragmentation pathway have been known for almost 50 years, yet one unexploited feature of these intermediates is their putative 1,3-dipole. Described ... -
1,4–Conjugate Addition with Pyrrole and Indole Enones & Propargylic Substitution using Boronic Acids as Nucleophiles with Gallium and Silver Catalysts
(2021-08)This dissertation covers two projects: 1,4–conjugate addition on pyrrole and indole enones, and propargylic substitution using boronic acid as nucleophiles and silver/gallium catalysts. b-(2-indole)-enones and b-(2-pyrro ... -
1. Attempts to Prepare Porous Materials Based on Thiols and Fluorinated Precursors 2. Self-Sorting of Complex Libraries during Kinetically Controlled Acylations
(2015-08)This thesis presents three studies in supramolecular chemistry. First is the synthesis and characterization of dynamic covalent disulfide bond based metal-organic framework (MOF), second is development of the fluorinated ... -
1. C-C Bond Formation via Soft Enolization and Umpolung-like Chemistry 2. Electrophilic Fluorination of Organozinc Reagents
(2020-12)Synthetic methodology development towards convenient C-C bond and C-F bond formation is a desirable synthetic tool for industry and academia. Using commercially available substrates towards chemical transformations is often ... -
1. SELF-SORTING OF DYNAMIC IMINE LIBRARIES UNDER CHEMICAL AND PHYSICAL STIMULI; 2. CHARACTERIZATION OF POROUS MATERIALS BASED ON A FLUORINATED TETRAZOLE
(2016-05)Chapter 1 introduces the self-sorting processes of dynamic combinaotrial libraries (DCLs) under thermodynamic and kinetic control. Based on the concept of dynamic combinatorial chemistry (DCC), disulfide exchange, imino ... -
1. Synthesis of New Polyfluoroaryl Materials. 2. New Transition Metal Catalysts for Enantioselective C – H Bond Functionalization.
(2021-12)1. Synthesis of new polyfluoroaryl materials. Polyfluorinated porous materials are essential in sequestration of fluorine pollutants due to their high water resistance and fluorophilic ability. In 2014, our and Dr. Miljanic ... -
A computer simulation study of ion-molecule reactions in the mass spectrometer
(1970)Relative ion abundances were calculated on the basis of a collision model for multiple order ion-molecule reactions. Allowance was made for the energy dependency of reaction cross sections and the existence of long-lived ... -
A general method for the fluorination of compounds containing boron-hydrogen bonds
(1971)A method for the fluorination of compounds containing horon-hydrogen bonds using anhydrous hydrogen fluoride as the fluorinating agent is described. Trimethylamine-borane and tertiary-butylamine-borane are fluorinated ... -
A kinetic and thermodynamic study of fast reactions in mixed aqueous solvents by the pressure jump technique
(1972)The change in the rate constants and stability constants of the one-to-one nickel(II) malonate complex was studied as a function of changing structure and macroscopic properties of the solvent at different temperatures. ... -
A kinetic and thermodynamic study of some lanthanide (III) complex formation reactions
(1973)The stability constants for the formation of several one-to-one lanthanide (III) tartrate complexes have been determined at different temperatures. The rate constants for the formation of lanthanide (III) tartrate and ... -
A kinetic and thermodynamic study of the complexation of tetra-[mu]-boxylatodirhodium(II) with some selected ligands
(1975)The kinetics and thermodynamics of the formation of 1:1 and 1:2 adducts of Rh[lowered 2](O[lowered 2]CR)[lowered 4], where R = CH[lowered 3], CH[lowered 3]OCH[lowered 2] or CH[lowered 3]CH[lowered 2], and ligands, 5'-AMP, ... -
A kinetic study of some ligand substitution reactions
(1967)The rate constant for the formation and dissociation of the one-to-one complexes of nickel with malonate and succinate ligands and magnesium with oxalate ligand have been determined by a pressure-jump technique. The rates ... -
A kinetic study of some rare earth ligand substitution reactions
(1967)The solution chemistry of the rare earth ions has been the subject of many discussions in the chemical literature. This is the result of the unusual variations observed in the stability of rare earth complexes with varying ... -
A mass spectrometric investigation of B-N bond association energies in the amine-borane system
(1973)A four part study of boron-nitrogen bond dissociation energies in a series of borane adducts of trimethylamine is reported. The first part involves a study of the low temperature thermal properties (290[degrees]K to ... -
A micro-extraction of volatile metabolites from body fluids for analysis by high resolution gas chromatography and GC-MS
(1976)A solvent extraction method for sampling of volatile metabolites from human biological fluids developed by Zlatkis and Andrawes (45) was tested using plasma, urine, breast milk, and amniotic fluid collected from postpartum ... -
A MM/QM Approach to Simulating Electron/Hole Separation Kinetics of Organic Polymers Bulk-Heterojunctions
(2016-12)We investigate the electronic dynamics of model organic photovoltaic (OPV) system consisting of polyphenylene vinylene (PPV) oligomers and [6,6]-phenyl C61-butyric acid methylester (PCBM) blend using a mixed molecular ... -
A novel rearrangement of substituted phenylhydroxylamines
(1970)The rearrangement in different solvents of a number of substituted phenyl hydroxyl amines has been investigated. Kinetically, the N-acyl-N-phenylhydroxyl amines show a great sensitivity to electronic changes in the molecule. ... -
A quantum mechanical study of reactive probabilities for collinear atom-diatom systems
(1971)A new method for treating the reactive scattering of an atom-diatom system is applied to a generalized collinear model reactive system. Coupled rearrangement channel [tau] operator equations are employed to generate coupled ... -
A Renaissance of the (Anti)Aromaticity Concept in Modern Applications of Organic Chemistry
(2021-08)This dissertation focuses on applying computational quantum chemical tools to explore modern applications of aromaticity and antiaromaticity in organic chemistry. Even though all sophomore organic chemistry students learn ...