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Modulation of Fe–Fe distance and spin in diiron complexes using tetradentate ligands with different flanking donors

https://doi.org/10.1039/D4CC02522A

Spielvogel, Kyle D; Campbell, Emily J; Chowdhury, Sabyasachi Roy; Benner, Florian; Demir, Selvan; Hatzis, Gillian P; Petras, Hayley R; Sembukuttiarachchige, Dunya; Shepherd, James J; Thomas, Christine M; et al (August 2024, Chemical Communications)

Here we report the synthesis and characterization of diiron complexes containing triaryl N₄and N₂S₂ligands derived fromo-phenylenediamine.
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Free, publicly-accessible full text available August 6, 2025
Oxidation of phosphine donors to phosphinimines via a putative Fe-imido intermediate

https://doi.org/10.1016/j.poly.2023.116822

Stevens, Jeremiah E; Hatzis, Gillian P; Seith, Maria C; Moore, Curtis E; Thomas, Christine M (March 2024, Polyhedron)

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Catalytic Hydrogenation of Terminal Alkenes by a (PPP) Pincer-Ligated Cobalt(II) Complex

https://doi.org/10.1021/acs.organomet.3c00170

Fitzsimmons, Matthew C.; Yessengazin, Azamat; Hatzis, Gillian P.; Stevens, Jeremiah E.; Moore, Curtis E.; Thomas, Christine M. (May 2023, Organometallics)

A Co(II) complex, (PPHP)CoI2, was synthesized and evaluated as a precatalyst for the hydrogenation of terminal alkenes under mild conditions (1 atm H2, ambient temperature) using KBEt3H as an activator. This catalytic system was found to be active for terminal alkene substrates, including 1,1′-disubstituted alkenes, and to exhibit modest air and moisture stability. A preliminary investigation into substrate scope and functional group tolerance was performed. Upon the completion of catalytic reactions, the sole metal complex observed was identified as the dimeric species [(PPP)CoH]2 suggesting that the catalytically active species may be a cobalt hydride monomer.
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