ArticleInorganic chemistry2022
Iron Complexes of a Proton-Responsive SCS Pincer Ligand with a Sensitive Electronic Structure.
Article in Inorganic chemistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Evaluating Diazene to NChemistry (Weinheim an der Bergstrasse, Germany) · 2024Article
- Desulfurization and NOrganometallics · 2023Article
- Investigating Metal-Metal Bond Polarization in a Heteroleptic Tris-Ylide Diiron System.Inorganic chemistry · 2023Article
- Sulfur-Ligated [2Fe-2C] Clusters as Synthetic Model Systems for Nitrogenase.Inorganic chemistry · 2023Article
- Oriented internal electrostatic fields: an emerging design element in coordination chemistry and catalysis.Chemical science · 2022Review
- Iron Complexes of a Proton-Responsive SCS Pincer Ligand with a Sensitive Electronic Structure.Inorganic chemistry · 2022Article
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Authors and funding
7 authors.
Funding
Abstract
Sulfur/carbon/sulfur pincer ligands have an interesting combination of strong-field and weak-field donors, a coordination environment that is also present in the nitrogenase active site. Here, we explore the electronic structures of iron(II) and iron(III) complexes with such a pincer ligand, bearing a monodentate phosphine, thiolate S donor, amide N donor, ammonia, or CO. The ligand scaffold features a proton-responsive thioamide site, and the protonation state of the ligand greatly influences the reduction potential of iron in the phosphine complex. The N-H bond dissociation free energy, derived from the Bordwell equation, is 56 ± 2 kcal/mol. Electron paramagnetic resonance (EPR) spectroscopy and superconducting quantum interference device (SQUID) magnetometry measurements show that the iron(III) complexes with S and N as the fourth donors have an intermediate spin (
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Registered trials
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