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Dr. Adam Fiedler

Dr. Adam Fiedler
Dr. Adam FiedlerMarquette University

Wehr Chemistry Building, 433

MilwaukeeWI53201United States of America
(414) 288-7191The Fiedler Lab

Associate Professor

Chemistry

Education

Ph.D., University of Wisconsin-Madison

B.S., University of Wisconsin-Madison

Research Interests

My group's research falls within the general field of bio-inspired inorganic chemistry.  The common theme is the synthesis and characterization of inorganic complexes that mimic the structure and/or function of metalloenzymes.  All of our projects are multifaceted, combining inorganic coordination chemistry with mechanistic studies, spectroscopic characterization (UV-vis, EPR, MCD, X-ray absorption, resonance Raman), and computational (DFT) analysis.

Research Areas

  • Bio-inspired inorganic chemistry
  • Synthesis and spectroscopy of inorganic complexes
  • Coordination chemistry

Professional Experience

Professor Fiedler received his Ph.D. degree in inorganic chemistry under the direction of Thomas Brunold at the University at Wisconsin-Madison in 2006. After graduating from Madison, he began an NIH postdoctoral fellowship in the laboratory of Prof. Larry Que, Jr. at the University of Minnesota, where synthesized and characterized high-valent iron complexes with relevance to oxygen activation in biological systems. He joined the faculty at Marquette University in August 2009. Professor Fiedler's research interests are in the area of synthetic bioinorganic chemistry, spectroscopy, and computational methods.

Selected Publications

  1. Fischer, A.A.; Lindeman, S.V.; Fiedler, A.T.* “A Synthetic Model of the Nonheme Iron–Superoxo Intermediate of Cysteine Dioxygenase.”  Chemical Communications 2018, 54, 11344-11347. doi.org/10.1039/C8CC06247A
  2. Wang, D.; Ekanayake, D.M; Lindeman, S.V.; Verani, C.N.;* Fiedler, A.T.* “Multielectron Redox Chemistry of Transition Metal Complexes Supported by a Non-innocent N3P2 Ligand: Synthesis, Characterization, and Catalytic Properties.”  European Journal of Inorganic Chemistry 2018, 4133-4141. doi.org/10.1002/ejic.201800843
  3. Fischer, A.A.; Lindeman, S.V., Fiedler, A.T.* “Spectroscopic and Computational Studies of Reversible O2 Binding by a Cobalt Complex Relevant to Cysteine Dioxygenase.” Dalton Transactions 2017, 46, 13229-13241. doi: 10.1039/C7DT01600J
  4. Kpogo, K.K.; Mazumder, S.; Wang, D.; Schlegel, H.B.*; Fiedler, A.T.;* Verani, C.N.* “Bimetallic Cooperativity in Proton Reduction with an Amido-Bridged Cobalt Catalysts.” Chemistry – A European Journal 2017, 23, 9272-9279. doi: 10.1002/chem.201701982  
  5. Fiedler, A.T.*; Fischer, A.A. “Oxygen Activation by Mononuclear Mn, Co, and Ni Centers in Biology and Synthetic Complexes.” Journal of Biological Inorganic Chemistry 2017, 22, 407-425.  doi: 10.1007/s00775-016-1402-7
  6. Fischer, A. A.; Stracey, N.; Lindeman, S.V.; Brunold, T.C.*; Fiedler, A.T.* “Synthesis, X-​ray Structures, Electronic Properties, and O2​/NO Reactivities of Thiol Dioxygenase Active-​site Models.” Inorganic Chemistry 2016, 55, 11839-11853.  doi: 10.1021/acs.inorgchem.6b01931
  7. Baum, A.E.; Lindeman, S.V.; Fiedler, A.T.* “Mononuclear Iron-(hydro/semi)quinonate Complexes Featuring Neutral and Charged Scorpionates: Synthetic Models of Intermediates in the Hydroquinone Dioxygenase Mechanism.” European Journal of Inorganic Chemistry, 2016, 2455-2464. doi: 10.1002/ejic.201501380
  8. Wang, D.; Lindeman, S.V.; Fiedler, A.T.* “Bimetallic Complexes Supported by a Redox-Active Ligand with Two Pincer-Type Coordination Sites.” Inorganic Chemistry 2015, 54, 8744-8754. doi: 10.1021/acs.inorgchem.5b01380
  9. Bittner, M.M.; Lindeman, S.V.; Popescu C.V.;* Fiedler, A.T.* “Dioxygen Reactivity of Biomimetic Fe(II) Complexes with Noninnocent Catecholate, o-Aminophenolate, and o-Phenylenediamine Ligands.” Inorganic Chemistry 2014, 53, 4047-4061. doi: 10.1021/ic403126p
  10. Baum, A.E.; Lindeman, S.V.; Fiedler, A.T.* “Preparation of a Semiquinonate-Bridged Diiron(II) Complex and Elucidation of its Geometric and Electronic Structures.” Chemical Communications 2013, 49, 6531-6533.  doi: 10.1039/c3cc42980f
  11. Bittner, M.M.; Kraus, D.; Lindeman, S.V.; Popescu, C.V.;* Fiedler, A.T.* “Synthetic, Spectroscopic and DFT Studies of Iron Complexes with Iminobenzo(semi)quinone Ligands: Implications for o-Aminophenol Dioxygenases.” Chemistry – A European Journal 2013, 19, 9686-9698. doi: 10.1002/chem.201300520
  12. Park, H.; Bittner, M.M.; Baus, J.S.; Lindeman, S.V.; Fiedler, A.T.* “Fe(II) Complexes That Mimic the Active Site Structure of Acetylacetone Dioxygenase: O2 and NO Reactivity.” Inorganic Chemistry 2012, 51, 10279-10289. doi: 10.1021/ic3012712
  13. Bittner, M.M.; Lindeman, S.V.; Fiedler, A.T.* “A Synthetic Model of the Putative Fe(II)-Iminobenzosemiquinonate Intermediate in the Catalytic Cycle of o-Aminophenol Dioxygenases.” Journal of the American Chemical Society 2012, 134, 5460-5463. doi: 10.1021/ja212163t
  14. Park, H.; Baus, J.S.; Lindeman, S.V.; Fiedler, A.T.*Synthesis and Characterization of Fe(II) b-Diketonate Complexes with Relevance to Acetylacetone Dioxygenase:  Insights into the Electronic Properties of the 3-His Facial Triad.”  Inorganic Chemistry 2011, 50, 11978–11989. doi: 10.1021/ic201115s

Honors and Awards

  • Way Klingler Young Scholar Award, 2012
  • NSF CAREER Award, 2011
  • NIH Ruth Kirschstein National Research Service Award, 2007-2009

Faculty & Staff


CONTACT

Department of Chemistry

Todd Wehr Chemistry, 101
1414 W Clybourn St.
Milwaukee, WI 53233
(414) 288-3515

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