Chemistry

Research in the Department of Chemistry encompasses the four traditional disciplines of
analytical, inorganic, organic and physical chemistry, and interdisciplinary research in areas related to aqueous and aquatic chemistry. Areas of focus include synthetic organic chemistry, transition metal and main group inorganic chemistry, electrochemistry, organic and inorganic water analysis, solution and interfacial chemistry, theory and spectroscopy. Although the department has traditionally been most active in basic research, there is increased emphasis on expanding the program through industrial funding. At the present time, our externally-funded, applied research projects include work related to aquatic and marine environmental chemistry, fuel cell research, the synthesis of anti-viral compounds and photochromic compounds, electrical steam generator chemistry, and hydrothermal geochemistry.

A full range of modern equipment includes 300MHz and 100MHz NMR spectrometers; a high resolution mass spectrometer; a single crystal X-ray diffractometer; an ESR spectrometer; a variable temperature superconducting Faraday magnetometer; FTIR, UV/VIS/NIR, microwave and Raman spectrometers; a Raman microprobe; electrochemical for cyclic voltammetry and AC impedance studies; two GC-MS and three HPLC chromatographs; heat capacity and heat of mixing microcalorimeters, and specialized precision thermochemical equipment for studying aqueous systems at high temperatures and pressures. Major equipment is operated by trained specialists and collaborative or service research is welcomed.

From only four students in 1984 the chemistry graduate program has grown to 44 M.Sc. and PhD. students in the 1995-96 academic year. Twelve of the 29 faculty at the St. John's campus and two cross-appointed faculty members are supervising graduate students. A new interdisciplinary M.Sc. program in environmental science began in 1995.

ANDERSON, Hugh J. Professor emeritus
Keywords
• History of chemistry; chemical technology
Current research
• Histories of natural products and their chemistry, including curare from "The Flying Death" and "Arrows of Mercy"
Past research
• Synthesis of 3-and 2, 3- disubstituted pyrroles
• Commercial preparaton of cod liver oil in Newfoundland
• Pyrrole: from Dippel's oil to DuPont
• Ernest LeSueur: Pioneer Canadian chemical engineer
• The discovery of furfural
• Shawinigan Chemicals, a history
• Gout versus colchicine
• TNT production during WWI

 

BODWELL, Graham Associate professor
Keywords
• Synthetic organic chemistry
Current research
• Novel hydrocarbons- non-planar aromatics, cyclophanes
• Synthetic methodology, inverser electron demand and Diek-Alder reactions
Past research
• See above
Potential research
• Supramolecular chemistry
• Total synthesis of biologically-active molecules and drug candidates

 

BRIDSON, John N. Professor
Keywords
• X-ray crystallography
Current research
• X-ray crystallography
Past research
• Synthesis of muscarine analogues
• Polar Diels-Alder reactions
• Organoboranes in synthesis
• Decomposition of forest litter

 

FLINN, Christopher Associate professor
Research specialty
• Application of computational chemical methods for reaction mechanisms
Current research
• Computational study at the deamination of cytosine and related compounds
Past research
• GC/MS of halogenated organic compounds using chemical ionization and electron ionization methodology
• Flamz photometric detection of organometallic compounds for gas chromatography
Potential research
• Structure, formation and reaction mechanisms of Grignard reagents

 

GEORGHIOU, Paris E. Professor
Keywords
• Organic synthesis; Synthesis of biologically-active, organic molecules;
Analytical chemistry of formaldehyde and other organic gases
Current research
• Synthesis of calixarenes and calixnaphthalenes and their biological and physicochemical properties
• Synthesis of novel, anti-psoriasis compounds
Past research
• Steroid synthesis and chemistry of Vitamin D (Cholecalciferol) derivatives
• Air particulate measurements
• Formaldehyde chemistry and analysis

 

GREGORY, Brian Professor
Keywords
• Organic chemistry, particularly heterocyclic chemistry; mass spectrometry
Current research
• Dihydropyridine Cation-radical chemistry
• Intramolecular Michael addition reactions
• Synthesis of pyrrolopyrimidine
Past research
• Sequential ring expansion, intramolecular Michael addition reactions
• Molecular rearrangements in heterocyclic compounds
• Synthesis of 1, 3-Diszepine derivatives
Potential research
• Synthesis of 1, 3-Diazepine nucleoside analogues as potential antivirals
Special equipment or facilities
• VG Micromass 70-70 HS mass spectrometer

 

HELLEUR, Robert Associate professor
Keywords
• Analytical chemistry; organics; seawater; environmental chemistry; marine hydrocarbons; toxins (remove toxins)
Current research
• Analytical pyrolysis of complex biomaterials
• Identification of biomarkers (secondary metabolites) of environmental stress in trees and lichens
• Applied pyrolysis of waste tires
• Characterization of conducting polymers in pyrolysis-gc-ms
• Analysis of hydrocarbons in marine environments
Past research
• Analysis of polysaccharides
• Trace amino acids and carbohydrates in seawater
Potential research
• Super-critical fluid extraction of pollutants, such as hydrocarbons and organochlorines, from sediments
• Trace analysis of organic contaminants in seawater and biological tissue
• Analysis of crude oils
• Analysis of nutraceuticals in herbs and marine plants
Special equipment or facilities
• Gas chromatography, mass spectrometry, liquid chromatography, trace analysis of organics in marine environment

 

LOADER, Charles E. Professor
Keywords
• Synthetic; organic; heterocyclic; pyrrole
Current research
• Synthesis and reactions of five-membered, heteroaromatic compounds

 

LONGERICH, Henry (see Earth Sciences)

 

LUCAS, C. Robert Professor
Keywords
• Synthetic; inorganic; liquid crystals; magnetochemistry; co-ordination compounds
Current research
• Complex formation by organometallic sulfides
• Catalysis by thioether complexes of transition metals
• Complex formation by macrocyclic polythioethers
Past research
• Organometallic compounds of lower valent titanium
• Preparation and properties of organo-niobium species
• Catalytic properties of organometallic compounds

 

MACHIN, W. D. Professor emeritus
Keywords
• Physical adsorption of vapours, porous solids
Current research
• Structure of porous adsorbents
• Properties of liquids in porous adsorbents

 

PARRISH, Chris (see Ocean Sciences Centre)

 

PATEL, Jyoti (see Fisheries and Marine Institute)

 

PICKUP, Peter G. Professor
Keywords
• Synthesis; electrochemistry; spectroscopy; conductivity; polymers; fuel cells
Current research
• Electronically conducting polymers with metal centres
• Ion and electron transport in conducting polymers
• Proton exchange membrane (PEM), fuel cells
• Low band-gap conducting polymers
Potential research
• Development of conducting-polymer, secondary battery cathodes
• Analytical electrochemistry
• Development of conducting polymer electronic devices
Special equipment or facilities
• AC impedance system
• Potentiostats
• UV/VIS spectrometer

 

POIRIER, Raymond A. Professor; President's Award for Outstanding Research (1986)
Keywords
• Theoretical; computational; ab initio; molecular orbital calculations; software design and development; vector and parallel computing
Current research
• Structure, reactivity relations
• Facial selectivity in Diels Alder reactions
• Kinetic isotope effects in SN2 reactions
• Decarboxilation of 4-butanoic acid
• Improving generalized, valence-bond calculations
• Development of transition state optimization methods
• Mechanism of the deamination reaction in cytosine
• Use of object oriented programming in computational chemistry
• Methodological and algorithmic developments
Past research
• The process of vision
• Intermolecular interactions
• Gaussian basis sets for MO calculations
• Hydrogen rearrangement reactions
Potential research
• Large molecular calculations
• Calculations of spectroscopic properties
• Intermolecular interactions
• Developments and applications of CI, MC-SCF and MBPT methods
• Calculation of solvent effects

 

SHAHIDI, F. (See Biochemistry)

 

STEIN, Allan R. Professor
Keywords
• Mechanistic; organic
Current research
• Kinetic isotope effects
• Ion-pair mechanisms in bimolecular displacement at saturated carbon
• Optical resolutions and chiral synthesis
• Radio-halides in tracer studies
• Halide-atom exchange processes
Past research
• Ambident anion chemistry
• Chemistry of the isonitriles
• Single electron transfer processes
• Reaction mechanisms through calarimetry

 

THOMPSON, Laurence K. Professor; University Research Professor (1995)
Keywords
• Inorganic chemistry; co-ordination chemistry; magnetic studies; electrochemistry; electron spin resonance spectroscopy; X-ray crystallography; molecular conductors; ferromagnets; antiferromagnets; ferrimagnets; metamagents
Current research
• Investigation of structural, magnetic and electrochemical properties of polynuclear, spin-coupled, co-ordination complexes
Potential research
• Molecular ferromagnets, ferrimagnets and metamagnets with high Tc
• New magnetic materials, molecular conducting materials, superconductors
Special equipment or facilities
• SQUID magnetometer, electron spin resonance spectrometer

 

 

 

 

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