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High Magnetic Anisotropy of a Square-Planar Iron-Carbene Complex

https://doi.org/10.1021/acs.inorgchem.1c01860

Hakey, Brett M.; Leary, Dylan C.; Xiong, Jin; Harris, Caleb F.; Darmon, Jonathan M.; Petersen, Jeffrey L.; Berry, John F.; Guo, Yisong; Milsmann, Carsten (December 2021, Inorganic Chemistry)

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Probing Catalyst Speciation in Pd-MPAAM-Catalyzed Enantioselective C(sp ³ )–H Arylation: Catalyst Improvement via Destabilization of Off-Cycle Species

https://doi.org/10.1021/acscatal.1c02805

Hao, Wei; Bay, Katherine L.; Harris, Caleb F.; King, Daniel S.; Guzei, Ilia A.; Aristov, Michael M.; Zhuang, Zhe; Plata, R. Erik; Hill, David E.; Houk, K. N.; et al (September 2021, ACS Catalysis)

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Catalytic C–H Trifluoromethylation of Arenes and Heteroarenes via Visible Light Photoexcitation of a Co(III)–CF ₃ Complex

https://doi.org/10.1021/acscatal.3c03832

Kuehner, Christopher S.; Hill, Andrew G.; Harris, Caleb F.; Owens, Christian A.; Bacsa, John; Soper, Jake D. (October 2023, ACS Catalysis)
Diruthenium Tetracarboxylate-Catalyzed Enantioselective Cyclopropanation with Aryldiazoacetates

https://doi.org/10.1021/acs.organomet.3c00268

Sailer, Joshua K.; Sharland, Jack C.; Bacsa, John; Harris, Caleb F.; Berry, John F.; Musaev, Djamaladdin G.; Davies, Huw M. L. (June 2023, Organometallics)
New chromium, molybdenum, and cobalt complexes of the chelating esp ligand

https://doi.org/10.1016/j.poly.2018.12.045

Pakula, Ryan J.; Martinez, Andrea M.; Noten, Efrey A.; Harris, Caleb F.; Berry, John F. (March 2019, Polyhedron)

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Synthesis and Catalytic Properties of Dirhodium Paddlewheel Complexes with Tethered, Axially Coordinating Thioether Ligands

https://doi.org/10.1021/acs.inorgchem.8b02627

Anderson, Bradley G.; Cressy, Derek; Patel, Jay J.; Harris, Caleb F.; Yap, Glenn P.; Berry, John F.; Darko, Ampofo (January 2019, Inorganic Chemistry)

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Redox-Active Bis(phenolate) N-Heterocyclic Carbene [OCO] Pincer Ligands Support Cobalt Electron Transfer Series Spanning Four Oxidation States

https://doi.org/10.1021/acs.inorgchem.7b01906

Harris, Caleb F.; Bayless, Michael B.; van Leest, Nicolaas P.; Bruch, Quinton J.; Livesay, Brooke N.; Bacsa, John; Hardcastle, Kenneth I.; Shores, Matthew P.; de Bruin, Bas; Soper, Jake D. (October 2017, Inorganic Chemistry)

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Photoinduced Cobalt(III)−Trifluoromethyl Bond Activation Enables Arene C−H Trifluoromethylation

https://doi.org/10.1002/anie.201711693

Harris, Caleb F.; Kuehner, Christopher S.; Bacsa, John; Soper, Jake D. (January 2018, Angewandte Chemie International Edition)

Abstract Visible‐light capture activates a thermodynamically inert Co^III−CF₃bond for direct C−H trifluoromethylation of arenes and heteroarenes. New trifluoromethylcobalt(III) complexes supported by a redox‐active [OCO] pincer ligand were prepared. Coordinating solvents, such as MeCN, afford green, quasi‐octahedral [(^SOCO)Co^III(CF₃)(MeCN)₂] (2), but in non‐coordinating solvents the complex is red, square pyramidal [(^SOCO)Co^III(CF₃)(MeCN)] (3). Both are thermally stable, and2is stable in light. But exposure of3to low‐energy light results in facile homolysis of the Co^III−CF₃bond, releasing^.CF₃radical, which is efficiently trapped by TEMPO^.or (hetero)arenes. The homolytic aromatic substitution reactions do not require a sacrificial or substrate‐derived oxidant because the Co^IIby‐product of Co^III−CF₃homolysis produces H₂. The photophysical properties of2and3provide a rationale for the disparate light stability.
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