Rearrangement of a P4 Butterfly Complex—The Formation of a Homoleptic Phosphorus–Iron Sandwich Complex

Mueller J, Heinl S, Schwarzmaier C, Balazs G, Keilwerth M, Meyer K, Scheer M (2017)

Publication Type: Journal article

Publication year: 2017

Journal

Angewandte Chemie International Edition Wiley

Book Volume: 56

Pages Range: 7312-7317

Journal Issue: 25

DOI: 10.1002/anie.201703175

Abstract

The versatile coordination behavior of the P4 butterfly complex [{Cp′′′Fe(CO)2}2(μ,η1:1-P4)] (1, Cp′′′=η5-C5H2 tBu3) towards different iron(II) compounds is presented. The reaction of 1 with [FeBr2⋅dme] (dme=dimethoxyethane) leads to the chelate complex [{Cp′′′Fe(CO)2}2(μ3,η1:1:2-P4){FeBr2}] (2), whereas, in the reaction with [Fe(CH3CN)6][PF6]2, an unprecedented rearrangement of the P4 butterfly structural motif leads to the cyclo-P4 moiety in {(Cp′′′Fe(CO)2)2(μ3,η1:1:4-P4)}2Fe][PF6]2 (3). Complex 3 represents the first fully characterized “carbon-free” sandwich complex containing cyclo-P4R2 ligands in a homoleptic-like iron–phosphorus-containing molecule. Alternatively, 2 can be transformed into 3 by halogen abstraction and subsequent coordination of 1. The additional isolated side products, [{Cp′′′Fe(CO)2}2(μ3,η1:1:2-P4){Cp′′′Fe(CO)}][PF6] (4) and [{Cp′′′Fe(CO)2}2(μ3,η1:1:4-P4){Cp′′′Fe}][PF6] (5), give insight into the stepwise activation of the P4 butterfly moiety in 1.

Authors with CRIS profile

Martin Keilwerth Lehrstuhl für Anorganische und Allgemeine Chemie Karsten Meyer Lehrstuhl für Anorganische und Allgemeine Chemie

Involved external institutions

Universität Regensburg DE Germany (DE)

How to cite

APA:

Mueller, J., Heinl, S., Schwarzmaier, C., Balazs, G., Keilwerth, M., Meyer, K., & Scheer, M. (2017). Rearrangement of a P4 Butterfly Complex—The Formation of a Homoleptic Phosphorus–Iron Sandwich Complex. Angewandte Chemie International Edition, 56(25), 7312-7317. https://doi.org/10.1002/anie.201703175

MLA:

Mueller, Julian, et al. "Rearrangement of a P4 Butterfly Complex—The Formation of a Homoleptic Phosphorus–Iron Sandwich Complex." Angewandte Chemie International Edition 56.25 (2017): 7312-7317.

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