Fe(IV) alkylidenes via protonation of Fe(II) vinyl chelates and a comparative Mossbauer spectroscopic study
Lindley BM, Swidan A, Lobkovsky EB, Wolczanski PT, Adelhardt M, Sutter J, Meyer K (2015)
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2015
Journal
Publisher: Royal Society of Chemistry
Book Volume: 6
Pages Range: 4730-4736
Journal Issue: 8
DOI: 10.1039/c5sc01268f
Abstract
Treatment of cis-Me2Fe(PMe3)(4) with di-1,2-(E-2-(pyridin-2-yl)vinyl)benzene ((bdvp)H-2), a tetradentate ligand precursor, afforded (bdvp)Fe(PMe3)(2) (1-PMe3) and 2 equiv. CH4, via C-H bond activation. Similar treatments with tridentate ligand precursors PhCH=NCH2(E-CH=CHPh) ((pipp)H-2) and PhCH=N(2-CCMe-Ph) ((pipa)H) under dinitrogen provided trans-(pipp)Fe(PMe3)(2)N-2 (2) and trans-(pipvd) Fe(PMe3)(2)N-2 (3), respectively; the latter via one C-H bond activation, and a subsequent insertion of the alkyne into the remaining Fe-Me bond. All three Fe(II) vinyl species were protonated with H[BAr4F] to form the corresponding Fe(IV) alkylidene cations, [(bavp)Fe(PMe3)(2)][BAr4F] (4-PMe3), [(piap)Fe(PMe3)(3)]-[BAr4F] (5), and [(pipad) Fe(PMe3)(3)][BAr4F] (6). Mossbauer spectroscopic measurements on the formally Fe(II) and Fe(IV) derivatives revealed isomer shifts within 0.1 mm s(-1), reflecting the similarity in their bond distances.
Authors with CRIS profile
Mario Adelhardt
Lehrstuhl für Anorganische und Allgemeine Chemie
Jörg Sutter
Lehrstuhl für Anorganische und Allgemeine Chemie
Karsten Meyer
Lehrstuhl für Anorganische und Allgemeine Chemie
Involved external institutions
United States (USA) (US)How to cite
APA:
Lindley, B.M., Swidan, A., Lobkovsky, E.B., Wolczanski, P.T., Adelhardt, M., Sutter, J., & Meyer, K. (2015). Fe(IV) alkylidenes via protonation of Fe(II) vinyl chelates and a comparative Mossbauer spectroscopic study. Chemical Science, 6(8), 4730-4736. https://doi.org/10.1039/c5sc01268f
MLA:
Lindley, Brian M., et al. "Fe(IV) alkylidenes via protonation of Fe(II) vinyl chelates and a comparative Mossbauer spectroscopic study." Chemical Science 6.8 (2015): 4730-4736.
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