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Synthesis and structure-activity relationship of a series of sigma receptor ligands
(University of Missouri--Columbia, 2007)
Sigma receptors are involved in several biological processes, and sigma ligands might be promising as cancer treatment agents, cocaine abuse medicines, and valuable psychiatric drugs. In an attempt to elucidate effectual ...
Organo nickel and platinum chemistry at the edge of corannulene
(University of Missouri--Columbia, 2007)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Corannulene (C[subscript 20]H[subscript 10]), a polycyclic aromatic hydrocarbon (PAH) is a bowl shaped fullerene fragment. This work involves investigations ...
Structural studies of acid phosphatases from pathogenic bacteria
(University of Missouri--Columbia, 2007)
Acid phosphatases are important, ubiquitous, and diverse group of enzymes that catalyze the transfer of phosphoryl from phosphomonoester to water forming inorganic phosphate and alcohol. These enzymes play critical roles ...
Evaluating the suitability of the human toenail as a biomonitor for manganese status: the one source cohort
(University of Missouri--Columbia, 2007)
Numerous studies have demonstrated that the human toenail is a reliable biomonitor for the intake of Se and other elements. The objective of this study was to evaluate the hypothesis that Mn intake is reflected in toenail ...
Separation and identification of peptides by integrated multidimensional liquid chromatography-mass spectrometry (IMDLC-MS)
(University of Missouri--Columbia, 2007)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Integrated multidimensional liquid chromatography (IMDLC) is an innovative method used for separation of tryptic peptides. In this method a two-component ...
Studies on the nucleophilic substitution reactions of a dimeric cyclopentadienone
(University of Missouri--Columbia, 2007)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Nucleophilic substitution reactions of 3,5-Dibromo-3a,4,7,7a-tetrahydro-4,7-methano-indene-1,8-dione (48) have been studied. Amines, thiols and alcohols ...
Synthesis and characterization of novel phosphinimine ligand systems for potential applications in radiopharmaceuticals
(University of Missouri--Columbia, 2007)
Multidentate phosphinimine ligands, C₂₅H₄₉N₂P₂Si₂,(2) C₃₄H₃₈N₂P₂Si₂(3), and C₅₀H₆₆N₃P₃Si₃(4), were synthesized in near quantitative yields by Staudinger reaction using appropriate phosphines. Coordination chemistry of 2 ...
Ammonia elimination from protonated nucleobases
(University of Missouri--Columbia, 2007)
The dediazoniations of the diazonium ion 1 of 4-aminopyrimidine and of the tautomeric cytosinediazonium ions 2 and 3 are facile and result in the formations of cations 4, 5, and 6. The pyrimidine ring-opening of 4, 5 and ...
Ligands for the sigma receptor and the mu-opioid receptor
(University of Missouri--Columbia, 2007)
The sigma receptor is a unique receptor family with two subtypes: sigma-1 and sigma-2. In order to conduct structure-activity relationship studies (SAR), a series of specific 1-phenylpropyl-4-benzylpiperidine and ...
Structure and synthesis of four supramolecular structures involving Cu(I) and 4,7-phenanthroline
(University of Missouri--Columbia, 2007)
The design and synthesis of supramolecular species with discrete geometric shapes has been an area of much interest and research in recent years. Three isolated species of square shaped molecules and one infinite network ...
pH sensitive fluorescent sensors
(University of Missouri--Columbia, 2007)
Pheochromocytoma is a cancer of the adrenal gland. Pheochromoocytomas produce a variety of catecholamines, including norepinephrine. The result is high blood pressure which is caused by the release of catecholamines into ...
Energy transfer at gas-liquid interface : towards energetic materials
(University of Missouri--Columbia, 2007)
Physicochemical surface processes have great importance in the different fields of everyday life and science. Computational characterization of collisional energy transfer at a gasliquid interface is a helpful tool to ...
Phosphinimines as potential technetium environmental sensors
(University of Missouri--Columbia, 2007)
Phosphinimines, R₃P=NSiMe₃, undergo hydrolysis to form the phosphiniminiumcation, R₃P=NH₂+, which forms the ion pair [R₃P=NH₂+][X-] in the presence of an anion.Preliminary studies show that in the presence of TcO₄-, ...
The effects of structural modifications on sigma receptor binding
(University of Missouri--Columbia, 2007)
The sigma receptor is a unique receptor family that has two subtypes: sigma1 and sigma2. Sigma1 receptors are involved in several physiological functions such as psychosis and depression. Sigma2 receptors are expressed in ...
Molecular dynamics simulations of pressure shocks in liquid phase nitromethane
(University of Missouri--Columbia, 2007)
The dynamic energy transfer processes present in liquid nitromethane (NM) under pressure shock loading conditions have been investigated by nonequilibrium molecular dynamics methods using a previously developed, fully ...
Deantiaromatization as a driving force in an electrocyclization of cyclopentadienone and the total synthesis of 1-epi-esco-pseudopteroxazole
(University of Missouri--Columbia, 2007)
Deantiaromatization has been successfully demonstrated as a driving force in an electrocyclization of cyclopentadienones. The reaction was found to be general for a number of substrates and provides a unique way to access ...
Diels-alder reactions of a cyclopentadienone derivative
(University of Missouri--Columbia, 2007)
An ester derivative of cyclopentadienone, a very reactive species, was generated from methyl-2-bromo-3-oxocyclopent-1-enecarboxylate (96) which dimerized instantaneously and decarbonylated to generate an indanone (97). ...
Probing supramolecular assemblies via fluorescent reporter molecules
(University of Missouri--Columbia, 2007)
Supramolecular, self-assembled nanocapsules have shown the capability to encapsulate organic guests. Since most of the work was done previously in the solid state, the novelty of this research was its focus on probing ...
From carbon to copper : studies of novel nanomaterials
(University of Missouri--Columbia, 2007)
Nanomaterials are materials on the order of 10-9 m that are currently being investigated for use in a wide range of applications in the growing field of nanotechnology. This dissertation documents the synthesis, characterization, ...
Determination of total selenium and seleno-amino acids in yeast and aquatic organisms by liquid chromatography and inductively coupled plasma mass spectrometry
(University of Missouri--Columbia, 2007)
The primary goal of this dissertation research was to develop methods for routine speciation analysis of selenium in tissues. A method for total selenium using on-line stable isotope dilution analysis with conventional ...