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Braunschweig H, Damme A, Dück K, et al. Ansa-Complexes of [Mn(η(5) -C5 H5 )(η(6) -C6 H6 )]: Preparation, Characterization, and Reactivity of [n]Manganoarenophanes (n=1, 2, 3). Chemistry. 2015;21(42):14797-803doi: 10.1002/chem.201502161.
Braunschweig, H., Damme, A., Dück, K., Fuß, M., Hörl, C., Kramer, T., Krummenacher, I., Kupfer, T., Paprocki, V., & Schneider, C. (2015). Ansa-Complexes of [Mn(η(5) -C5 H5 )(η(6) -C6 H6 )]: Preparation, Characterization, and Reactivity of [n]Manganoarenophanes (n=1, 2, 3). Chemistry (Weinheim an der Bergstrasse, Germany), 21(42), 14797-803. https://doi.org/10.1002/chem.201502161
Braunschweig, Holger, et al. "Ansa-Complexes of [Mn(η(5) -C5 H5 )(η(6) -C6 H6 )]: Preparation, Characterization, and Reactivity of [n]Manganoarenophanes (n=1, 2, 3)." Chemistry (Weinheim an der Bergstrasse, Germany) vol. 21,42 (2015): 14797-803. doi: https://doi.org/10.1002/chem.201502161
Braunschweig H, Damme A, Dück K, Fuß M, Hörl C, Kramer T, Krummenacher I, Kupfer T, Paprocki V, Schneider C. Ansa-Complexes of [Mn(η(5) -C5 H5 )(η(6) -C6 H6 )]: Preparation, Characterization, and Reactivity of [n]Manganoarenophanes (n=1, 2, 3). Chemistry. 2015 Oct 12;21(42):14797-803. doi: 10.1002/chem.201502161. Epub 2015 Aug 31. PMID: 26387512.
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Chemistry. 2015 Oct 12;21(42):14797-803. doi: 10.1002/chem.201502161. Epub 2015 Aug 31.

Ansa-Complexes of [Mn(η(5) -C5 H5 )(η(6) -C6 H6 )]: Preparation, Characterization, and Reactivity of [n]Manganoarenophanes (n=1, 2, 3).

Chemistry (Weinheim an der Bergstrasse, Germany)

Holger Braunschweig, Alexander Damme, Klaus Dück, Marco Fuß, Christian Hörl, Thomas Kramer, Ivo Krummenacher, Thomas Kupfer, Valerie Paprocki, Christoph Schneider

Affiliations

  1. Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg (Germany), Fax: (+49)?931-31-84623. [email protected].
  2. Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg (Germany), Fax: (+49)?931-31-84623.

PMID: 26387512 DOI: 10.1002/chem.201502161

Abstract

We report the synthesis of [n]manganoarenophanes (n=1, 2) featuring boron, silicon, germanium, and tin as ansa-bridging elements. Their preparation was achieved by salt-elimination reactions of the dilithiated precursor [Mn(η(5) -C5 H4 Li)(η(6) -C6 H5 Li)]⋅pmdta (pmdta=N,N,N',N',N''-pentamethyldiethylenetriamine) with corresponding element dichlorides. Besides characterization by multinuclear NMR spectroscopy and elemental analysis, the identity of two single-atom-bridged derivatives, [Mn(η(5) -C5 H4 )(η(6) -C6 H5 )SntBu2 ] and [Mn(η(5) -C5 H4 )(η(6) -C6 H5 )SiPh2 ], could also be determined by X-ray structural analysis. We investigated for the first time the reactivity of these ansa-cyclopentadienyl-benzene manganese compounds. The reaction of the distannyl-bridged complex [Mn(η(5) -C5 H4 )(η(6) -C6 H5 )Sn2 tBu4 ] with elemental sulfur was shown to proceed through the expected oxidative addition of the Sn-Sn bond to give a triatomic ansa-bridge. The investigation of the ring-opening polymerization (ROP) capability of [Mn(η(5) -C5 H4 )(η(6) -C6 H5 )SntBu2 ] with [Pt(PEt3 )3 ] showed that an unexpected, unselective insertion into the Cipso -Sn bonds of [Mn(η(5) -C5 H4 )(η(6) -C6 H5 )SntBu2 ] had occurred.

© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords: ansa-complexes; manganese; sandwich complexes; synthetic methods

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