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- Title
Cationic Tetrylene‐Iron(0) Complexes: Access Points for Cooperative, Reversible Bond Activation and Open‐Shell Iron(−I) Ferrato‐Tetrylenes**.
- Authors
Keil, Philip M.; Soyemi, Ademola; Weisser, Kilian; Szilvási, Tibor; Limberg, Christian; Hadlington, Terrance J.
- Abstract
The open‐shell cationic stannylene‐iron(0) complex 4 (4=[PhiPDippSn⋅Fe⋅IPr] ; PhiPDipp={[Ph2PCH2Si(iPr)2](Dipp)N}; Dipp=2,6‐iPr2C6H3; IPr=[(Dipp)NC(H)]2C:) cooperatively and reversibly cleaves dihydrogen at the Sn−Fe interface under mild conditions (1.5 bar, 298 K), in forming bridging hydrido‐complex 6. The One‐electron oreduction of the related GeII−Fe0 complex 3 leads to oxidative addition of one C−P linkage of the PhiPDipp ligand in an intermediary Fe−I complex, leading to FeI phosphide species 7. One‐electron reduction reaction of 4 gives access to the iron(−I) ferrato‐stannylene, 8, giving evidence for the transient formation of such a species in the reduction of 3. The covalently bound tin(II)‐iron(−I) compound 8 has been characterised through EPR spectroscopy, SQUID magnetometry, and supporting computational analysis, which strongly indicate a high localization of electron spin density at Fe−I in this unique d9‐iron complex.
- Subjects
ELECTRON spin; OXIDATIVE addition; ELECTRON paramagnetic resonance spectroscopy; ELECTRON density; IRON; TIN
- Publication
Angewandte Chemie, 2023, Vol 135, Issue 19, p1
- ISSN
0044-8249
- Publication type
Academic Journal
- DOI
10.1002/ange.202218141