T. David Harris Assistant Professor

Research Statement

Our research applies coordination chemistry, which enables the control of geometric and electronic structure at the atomic level, to develop and study functional molecules and materials. Students in our group receive broad training in synthesis, by designing and preparing molecular complexes and coordination solids, as well as in physical methods, by investigating compounds using techniques such as X-ray crystallography, magnetometry, and spectroscopy. More specifically, our research exploits chemical control of spin to synthesize metal-organic radical magnets and magnetic resonance probes that map temperature, redox environment, pH, and ion concentration, and we employ metal-organic frameworks as solid-state matrices to study the structure, bonding, and reactivity of unusual metal complexes relevant to biology and catalysis.

Selected Publications

Du, K.; Harris, T. D. “A CuII2 Paramagnetic Chemical Exchange Saturation Transfer Contrast Agent Enabled by Magnetic Exchange Coupling” J. Am. Chem. Soc. 2016, 138, 7804-7807.

Jeon, I.-R.; Sun, L.; Negru, B.; Van Duyne, R. P.; Dincă, M.; Harris, T. D. “Solid-State Redox Switching of Magnetic Coupling and Electronic Conductivity in a Benzoquinoid-Bridged MnII Chain Compound” J. Am. Chem. Soc. 2016, 138, 6583-6590.

Jeon, I.-R.; Harris, T. D. “An S = 12 Semiquinoid Radical-Bridged Mn6 Wheel Complex Assembled from an Asymmetric Redox-Active Bridging Ligand” Chem. Commun. 2016, 52, 1006-1008.

Jeon, I.-R.; Negru, B.; Van Duyne, R. P.; Harris, T. D. “A 2D Semiquinone Radical-Containing Microporous Magnet with Solvent-Induced Switching from Tc = 26 to 80 K” J. Am. Chem. Soc. 2015, 137, 15699-15702.

Gaudette, A. I.; Jeon, I.-R.; Anderson, J. S.; Grandjean, F.; Long, G. J.; Harris, T. D. “Electron Hopping through Double-Exchange Coupling in a Mixed-Valence Diiminobenzoquinone-Bridged Fe2 Complex” J. Am. Chem. Soc. 2015, 137, 12617-12626.

DeGayner, J. A.; Jeon, I.-R.; Harris, T. D. “A Series of Tetraazalene Radical-Bridged M2 (M = CrIII, MnII, FeII, CoII) Complexes with Strong Magnetic Exchange Coupling” Chem. Sci. 2015, 6, 6639-6648.

Demir, S.; Jeon, I.-R.; Long, J. R.; Harris, T. D. “Radical Ligand-Containing Single-Molecule Magnets” Coord. Chem. Rev. 2015, 289, 149-176.

Park, J. G.; Jeon, I.-R.; Harris, T. D. “Electronic Effects of Ligand Substitution on Spin Crossover in a Series of Diiminoquinonoid-Bridged FeII2 Complexes” Inorg. Chem. 2015, 54, 359-369.

Anderson, J. S.; Gallagher, A. T.; Mason, J. A.; Harris, T. D. “A Five-Coordinate Heme Dioxygen Adduct Isolated within a Metal-Organic Framework” J. Am. Chem. Soc. 2014, 136, 16489-16492.

Jeon, I.-R.; Park, J. G.; Haney, C. R.; Harris, T. D. “Spin Crossover Iron(II) Complexes as PARACEST MRI Thermometers” Chem. Sci. 2014, 5, 2461-2465.

Jeon, I.-R.; Park, J. G.; Xiao, D. J.; Harris, T. D. “An Azophenine Radical-Bridged Fe2 Single-Molecule Magnet with Record Magnetic Exchange Coupling” J. Am. Chem. Soc. 2013, 135, 16845-16848.


Selected Honors/Awards

  • Weinberg College of Arts and Sciences Distinguished Teaching Award, 2016
  • Alfred P. Sloan Research Fellowship, 2016-2018
  • Institute for Sustainability and Energy at Northwestern Early Career Investigator Award, 2015-2016
  • National Science Foundation CAREER Award, 2014-2019
  • U.S. Army Research Office Young Investigator Program, 2014-2017
  • Associated Student Government Faculty Honor Roll, 2013
  • ACS Division of Inorganic Chemistry Young Investigator Award, 2011