B.S., Purdue University, 1975. Ph.D., California Institute of Technology, 1979 (Harry Gray). Honors and Awards: Alfred P. Sloan Fellow, 1986-88. American Association for the Advancement of Science Fellow, 2010. At Oregon since 1985.

LAB WEBSITE here.  Current projects include Iron catalysis for small molecule activation; Iron mediated nitrogen binding; Flow ozonolysis of alkenes and alkynes; Novel phosphine synthesis; Photochemical kinetics and solvent-cage effects; Photosensitized polymer degradation; Cross-coupling catalysis.

Preparation of Photoreactive Oligomers by ADMET Polymerization of [(C5H4(CH2)8CH=CH2)Mo(CO)3]2. Ginger V. Shultz, Jennifer M. Zemke, and David R. Tyler. Macromolecules, 2009, 42, 7644-7649.

Precursors to Dinitrogen Reduction: Structures and Reactivity of trans-[Fe(DMeOPrPE)2(η2-H2)H]+ and trans-[Fe(DMeOPrPE)2(N2)H]+. Justin L. Crossland, Douglas M. Young, Lev N. Zakharov, and David R. Tyler. Dalton Trans. 2009, 9253-9259.

Investigation of the Reactivity of Pt Phosphinito and Molybdocene Nitrile Hydration Catalysts with Cyanohydrins. Takiya J. Ahmed, Brandy R. Fox, Spring Melody M. Knapp, Robert B. Yelle, J. Jerrick Juliette, and David R. Tyler. Inorganic Chemistry 2009, 48, 7828-7837.

Intermediates in the Reduction of N2 to NH3: Synthesis of Iron η2 Hydrazido(1-) and Diazene Complexes. Justin L. Crossland, Chantal G. Balesdent, and David R. Tyler. Dalton Trans. 2009, 4420-4422.

Aqueous Coordination Chemistry of H2. Why is Coordinated H2 Inert to Substitution by Water in trans-Ru(P2)2(H2)H+-type Complexes (P2 = a Chelating Phosphine)? Nathaniel K. Szymczak, Dale A. Braden, Justin L. Crossland, Yevgeniya Turov, Lev N. Zakharov, and David R. Tyler. Inorg. Chem. 2009, 48, 2976-2984.

Theoretical Studies of N2 Reduction to Ammonia in Fe(dmpe)2N2. Robert B. Yelle, Justin L. Crossland, Nathaniel K. Szymczak, and David R. Tyler. Inorganic Chemistry 2009, 48, 861-871.

Application of a Perrin-like Kinetics Model to Explain the Biphasic Photochemical Degradation Rates of Polymers. Bevin C. Daglen and David R. Tyler. Macromolecules, 2008, 41, 9525-9531.

Aspects of Dihydrogen Coordination Chemistry Relevant to Reactivity in Aqueous Solution. Nathaniel K. Szymczak and David R. Tyler. Coord. Chem. Rev., 2008, 252, 212-230.

Effect of Solvent on the Dimerization of the ansa-Molybdocene Catalyst [C2Me4Cp2Mo(OH)(OH2)][OTs]. Takiya J. Ahmed and David R. Tyler. Organometallics, 2008, 27, 2608-2613.

Solvent Cage Effects: The Influence of Radical Mass and Volume on the Recombination Dynamics of Radical Cage Pairs Generated by Photolysis of [CpCH2CH2N(CH3)C(O)(CH2)nCH3Mo(CO)3]2 (n = 3, 8, 13, 18) (Cp = η5-C5H4) Complexes. Alan B. Oelkers, Erick J. Schutte and David R. Tyler. Photochem. Photobio. Sci., 2008, 7, 228-234.

Radical Cage Effects: A Method for Measuring Recombination Efficiencies of Secondary Geminate Radical Pairs using Pump-Probe Transient Absorption Methods. Alan Oelkers and David R. Tyler. Photochem. Photobio. Sci. 2008, 7, 1386-1390.

Femtosecond Pump-Probe Transient Absorption Study of the Photolysis of [Cp'Mo(CO)3]2 (Cp' = η5-C5H4CH3); The Role of Translational and Rotational Diffusion in the Radical Cage Effect. Alan B. Oelkers, Lawrence F. Scatena, and David R. Tyler. Journal of Physical Chemistry A, 2007; 111(25),; 5353-5360.

Transition Metal-containing Polymers by ADMET; Polymerization of cis-Mo(CO)4(Ph2P(CH2)3CH=CH2)2. Ginger V. Shultz, Lev N. Zakarahov and David R. Tyler, Macromolecules 2008, 41, 5555-5558.

The Effect of Morphology Changes on Polymer Photodegradation Efficiencies. A Study of Time-Dependent Morphology and Stress-Induced Crystallinity. Bevin C. Daglen and David R. Tyler. Journal of Inorganic and Organometallic Polymers and Materials 2009, 19, 91-97.

Reduction of N2 to Ammonia and Hydrazine Utilizing H2 as the Reductant. John D. Gilbertson, Nathaniel K. Szymczak, and David R. Tyler, J. Am. Chem. Soc. 2005, 127, 10184-10185.

Organometallic Chemistry in Aqueous Solution. Reactions Catalyzed by Water-Soluble Molybdocenes. Kerry L. Breno, Takiya J. Ahmed, Michael D. Pluth, Christoph Balzarek, and David R. Tyler, Coordination Chemistry Reviews, 2006, 250, 1141-1151.

Solution Chemistry of a Water-Soluble _2-H2 Ruthenium Complex: Evidence for Coordinated H2 Acting as a Hydrogen Bond Donor. Nathaniel K. Szymczak, Lev N. Zakharov, and David R. Tyler. J. Am. Chem. Soc., 2006, 128, 15830-15835.

Detection of hydrogen bonding in solution: A 2H nuclear magnetic resonance method based on rotational motion of a donor/acceptor complex. Nathaniel K. Szymczak, Alan B. Oelkers, and David R. Tyler. Physical Chemistry Chemical Physics, 2006, 4002-4008.

Coordination Chemistry of H2 and N2 in Aqueous Solution. Reactivity and Mechanistic Studies using trans-FeII(P2)2X2-type Complexes (P2 = a Chelating, Water-Solubilizing Phosphine). John D. Gilbertson, Nathaniel K. Szymczak, Warren K. Miller, David K. Lyon, Bruce M. Foxman, Joclyn Davis, David R. Tyler. Inorg. Chem., 2007, 46, 1205 -1214.

Femtosecond Pump-Probe Transient Absorption Study of the Photolysis of [Cp'Mo(CO)3]2 (Cp' = h5-C5H4CH3); The Role of Translational and Rotational Diffusion in the Radical Cage Effect. Alan B. Oelkers, Lawrence F. Scatena, and David R. Tyler. Journal of Physical Chemistry A, 2007; 111(25); 5353-5360.

The Radical Cage Effect; Is There a Spin Barrier to Recombination of Transition Metal Radicals? John D. Harris, Alan B. Oelkers, and David R. Tyler. J. Am. Chem. Soc., 2007, 129(19); 6255-6262..