Inorganic Chemistry
Inorganic Chemistry
5 years ago

Tuning the Diiron Core Geometry in Carboxylate-Bridged Macrocyclic Model Complexes Affects Their Redox Properties and Supports Oxidation Chemistry

Tuning the Diiron Core Geometry in Carboxylate-Bridged Macrocyclic Model Complexes Affects Their Redox Properties and Supports Oxidation Chemistry
Stephen J. Lippard, Megan N. Jackson, Andrei Loas, Sabine Becker, Mikael A. Minier, Fang Wang
A novel platform containing a small internal carboxylate, (CH2)nCOOH, was synthesized to mimic the coordination environment of carboxylate-bridged diiron proteins. With these ligands and an external carboxylate, a series of dinuclear [Fe2(PIMICn)(RCO2)(MeCN)] (n = 4−6) model complexes were obtained, which facilitate the oxidation of C−H bonds and an internal phosphine moiety. Electrochemical studies revealed that the redox potential of the complexes is closely associated with the diiron core geometry.

Publisher URL: http://dx.doi.org/10.1021/acs.inorgchem.7b01418

DOI: 10.1021/acs.inorgchem.7b01418

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