Mueller, Julian and Heinl, Sebastian and Schwarzmaier, Christoph and Balazs, Gabor and Keilwerth, Martin and Meyer, Karsten and Scheer, Manfred (2017) Rearrangement of a P-4 Butterfly Complex-The Formation of a Homoleptic Phosphorus-Iron Sandwich Complex. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 56 (25). pp. 7312-7317. ISSN 1433-7851, 1521-3773
Full text not available from this repository. (Request a copy)Abstract
The versatile coordination behavior of the P-4 butterfly complex [{Cp'" Fe(CO)(2)}(2)(mu,eta(1:1)-P-4)] (1, Cp'''=eta(5)-C(5)H(2)tBu(3)) towards different iron(II) compounds is presented. The reaction of 1 with [FeBr2 center dot dme] (dme = dimethoxyethane) leads to the chelate complex [{Cp''' Fe(CO)(2)}(2)(mu(3), eta(1:1:2)-P-4){FeBr2}] (2), whereas, in the reaction with [Fe(CH3CN)(6)][PF6](2), an unprecedented rearrangement of the P-4 butterfly structural motif leads to the cyclo-P-4 moiety in {(Cp'''Fe(CO)(2))(2)(mu(3),eta(1:1:4)-P-4)}(2)Fe][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)(mu(3),eta(1:1:2)-P-4){Cp'''Fe(CO)}][PF6] (4) and [{Cp'''Fe(CO)(2)}(2)(mu(3),eta(1:1:4)-P-4){Cp'''Fe}][PF6] (5), give insight into the stepwise activation of the P-4 butterfly moiety in 1.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TRANSITION-METAL-COMPLEXES; ELECTRON-DONATING ABILITY; P BOND; ACTIVATION; LIGANDS; FUNCTIONALIZATION; REACTIVITY; MOLECULES; CATALYSTS; ELEMENTS; cyclo-P-4 ligands; iron; P-4 butterfly complexes; P-4 transformation; phosphorus |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Dec 2018 13:10 |
| Last Modified: | 11 Feb 2019 13:25 |
| URI: | https://pred.uni-regensburg.de/id/eprint/702 |
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