T. David Harris Assistant Professor

Research Statement

Our research employs a coordination chemistry approach to develop functional inorganic molecules and materials. Students in the Harris 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. Our current interests lie in three main areas: (1) the design of high-spin transition metal clusters as MRI contrast agents, (2) the stabilization of reactive species and small-molecule catalysis in metal-organic frameworks, and (3) the synthesis of strongly-coupled one-dimensional coordination magnets.

Selected Publications

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

  • 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