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Title: Flash Communication: Flexibility of a Biologically Inspired Ligand Framework for Intramolecular C–H Activation

Journal Article · · Organometallics
 [1];  [2]; ORCiD logo [1]
  1. Texas A&M University, College Station, TX (United States)
  2. University of Illinois at Urbana−Champaign, IL (United States)

High-valent iron complexes play a crucial role in the oxidation of organic substrates, especially in C–H bond functionalization reactions in biology. This paper investigates the reactivity of nonporphyrin tripodal ligands featuring a secondary coordination sphere, focusing on their prospective ability to stabilize high-valent iron-oxo species. Using NMR spectroscopy and X-ray crystallography, we detail the formation of an Fe(III)-alkoxide complex through intramolecular C–H bond activation, providing insight into the potential transient formation of a high-valent iron-oxo intermediate. While attempts to observe an Fe(IV)-oxo complex were unsuccessful, our findings underscore the significance of the ligand electronic environment in stabilizing reactive iron species for C–H bond activation.

Research Organization:
Texas A&M University, College Station, TX (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB)
Grant/Contract Number:
SC0025026
OSTI ID:
2513947
Journal Information:
Organometallics, Journal Name: Organometallics Journal Issue: 3 Vol. 44; ISSN 0276-7333
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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