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Dr. David Johnson came to the UD Chemistry Department in 1985. Dr. Johnson teaches analytical chemistry and has also taught general chemistry and environmental chemistry and has mentored our first year students and also advises several of our majors. Recently, he led the renovation and furnishing of our state-of-the-art chemical instrumentation laboratory, now named the Bro. John J. Lucier S.M. Chemical Instrumentation Center. Dr. Johnson also teaches courses for the Premedical Programs. He was appointed chair of the department starting July, 2014.

Dr. Johnson spends much of his research time at Wright-Patterson Air Force Base working with government scientists within the field of lubricants. Undergraduate students who choose to do their research projects with Dr. Johnson also are afforded the opportunity to work with him at WPAFB. He has also been quite successful in publishing his research findings.

Research Interests

• Analysis of trace metals in perfluorinated lubricants using inductively coupled plasma-atomic emission spectroscopy
• Determination of true molecular weight distributions in perfluoropolyalkylether based lubricants using gas chromatography/mass spectrometry
• Determination of additive concentration and depletion mechanisms by gas chromatography/mass spectrometry

Selected Publications

Johnson, D.W.; Morrow, S.J.; Forster, N.; Saba, C.S. "Vapor-Phase Lubrication: Reaction of Phosphate Ester Vapors with Iron and Steel." Chemistry of Materials 2002, 14, 3767-3775.

Johnson, D.W.; Saba, C.S.; Wolf, J.D.; Wright, R. "Temperature Resolved Molecular Emission Spectroscopy: An Analytical Technique for Solid Materials." Analytical Chemistry 1997, 69, 532-535.

Liang, J.; Roselius, M.; Johnson, D.W. "Residual Hydrogen Determination in Perfluoropolyalkylethers Using Fourier Transform Infrared and Proton Nuclear Magnetic Resonance Spectroscopies." Applied Spectroscopy 1995, 49,1474-1477.

O'Brien, J.F.; Johnson, D.W.; Kuehner, K.; Brewer, T.R.; Keil, R.G. "Investigation of Alkali Metal-Water Interactions in Acetonitrile." Inorganica Chimica Acta 1991, 183, 113-117.

Keil, R.G.; Johnson, D.W.; Fryling, M.A.; O'Brien, J.F. "Investigation of Lithium Water Interactions in Acetonitrile Solutions Using Proton Nuclear Magnetic Resonance , Raman and Infrared Spectroscopies and Extended Huckel Molecular Orbital Calculations." Inorganic Chemistry 1989, 28, 2764-2766.

Johnson, D.W.; Brewer, T.R. "Synthesis of Rhodium(III), Iridium(III) and Osmium(III) Complexes with tris(2-Aminoethane-thiolato)cobalt(III)." Inorganica Chimica Acta 1988, 154, 221-224.

Johnson, D.W.; Mayer, H.K.; Minard, J.P.; Banaticla, J.; Miller, C. "Copper(II) Complexes with Schiff Base Ligands. Synthesis of Somme Copper(II) Complexes with Ligands Derived from the Reaction of Pyridine-2-Carboxaldehydes and Aromatic Amines." Inorganica Chimica Acta 1988, 144, 167-171.

Brubaker, G.R.; Shi, C.-X.; Johnson, D.W. "A Molecular Mechanics Model for the First Solvation Sphere of Complex Cations." Inorganica Chimica Acta 1987, 134, 15-16.

Johnson, D.W.; Mayer, H.K. "Synthesis of Some Copper(II) Complexes with Ligands Derived from the Schiff Base Reaction Between 2-Pyridinecarboxaldehyde and Aliphatic Amines." Inorganica Chimica Acta 1987, 126, L1-L2.

Johnson, D.W.; Brubaker, G.R. "Quantitative Estimates of Steric Effects. Intramolecular Strain Energy Effects on the Activation Energy for Aquation of Some trans- Dichlorotetraamine Cobalt(III) Complexes." Inorganica Chimica Acta 1986, 119, 131-139.

Patents

Johnson, D.W.; Eisentraut, K.J. "Analysis of Wear Metals in Perfluorinated Fluids." U.S. Patent 5,506,677, April 1996.