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1. Hydrosilylation of an Iron(IV) Nitride Complex

   https://doi.org/10.1021/acs.inorgchem.9b02831  

   Valdez-Moreira, Juan A.; Millikan, Sean P.; Gao, Xinfeng; Carta, Veronica; Chen, Chun-Hsing; Smith, Jeremy M. (December 2019, Inorganic Chemistry)
2. Mixotrophy broadens the ecological niche range of the iron oxidizer Sideroxydans sp. CL21 isolated from an iron-rich peatland

   https://doi.org/10.1093/femsec/fiac156  

   Cooper, Rebecca E.; Finck, Jessica; Chan, Clara; Küsel, Kirsten (January 2023, FEMS Microbiology Ecology)

   Abstract Sideroxydans sp. CL21 is a microaerobic, acid-tolerant Fe(II)-oxidizer, isolated from the Schlöppnerbrunnen fen. Since the genome size of Sideroxydans sp. CL21 is 21% larger than that of the neutrophilic Sideroxydans lithotrophicus ES-1, we hypothesized that strain CL21 contains additional metabolic traits to thrive in the fen. The common genomic content of both strains contains homologs of the putative Fe(II) oxidation genes, mtoAB and cyc2. A large part of the accessory genome in strain CL21 contains genes linked to utilization of alternative electron donors, including NiFe uptake hydrogenases, and genes encoding lactate uptake and utilization proteins, motility and biofilm formation, transposable elements, and pH homeostasis mechanisms. Next, we incubated the strain in different combinations of electron donors and characterized the fen microbial communities. Sideroxydans spp. comprised 3.33% and 3.94% of the total relative abundance in the peatland soil and peatland water, respectively. Incubation results indicate Sideroxydans sp. CL21 uses H2 and thiosulfate, while lactate only enhances growth when combined with Fe, H2, or thiosulfate. Rates of H2 utilization were highest in combination with other substrates. Thus, Sideroxydans sp. CL21 is a mixotroph, growing best by simultaneously using substrate combinations, which helps to thrive in dynamic and complex habitats. 

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3. Bioinspired Nickel Complexes Supported by an Iron Metalloligand

   https://doi.org/10.1021/acs.inorgchem.0c02041  

   Prat, Jacob R.; Gaggioli, Carlo A.; Cammarota, Ryan C.; Bill, Eckhard; Gagliardi, Laura; Lu, Connie C. (September 2020, Inorganic Chemistry)
4. Cross-Metathesis of an Iron Carbene with Diazenes

   https://doi.org/10.26434/chemrxiv-2025-10kzk  

   Lincoln, Zachary; Iluc, Vlad (April 2025, ChemRxiv)

   Olefin metathesis is one of the most versatile reactions in a synthetic chemist’s toolbox. Metathesis of C=X (X = O, N,(=NR)2) substrates has also been developed; however, the simple cross-metathesis of diazenes and olefins remains unrealized, in part due to the lack of mechanistic information about deactivation pathways for traditional olefin cross-metathesis catalysts. Herein, we report the reactions of [{PC(sp2)P}Fe(NCtBu)(N2)] ([PC(sp2)P] = bis(2-di-iso-propylphosphino)methylene) with cyclic diazenes, and the formation of metathesis-related products. These reactions led to the isolation of a diazametallacyclobutane from diazocine that ring opens to afford an in situ iron imido complex, which undergoes an intramolecular C-H amination to afford an iron-indoline. Restricting this side reaction with dibenzodiazepine led to the formation of an iron imide complex, which was stabilized and characterized by a one-electron oxidation. 

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5. Breaking a Molecular Scaling Relationship Using an Iron–Iron Fused Porphyrin Electrocatalyst for Oxygen Reduction

   https://doi.org/10.1021/jacs.3c08586  

   Nishiori, Daiki; Menzel, Jan Paul; Armada, Nicholas; Reyes_Cruz, Edgar A; Nannenga, Brent L; Batista, Victor S; Moore, Gary F (May 2024, Journal of the American Chemical Society)