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Issue 45, 2019
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Structural characterization of potassium salts of the decamethylmanganocene anion Cp*2Mn

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Abstract

For the first time the crystal structure of a permethylated metallocene anion has been obtained. The 17 valence electron complex decamethylmanganocene Cp*2Mn is reduced by molten potassium in THF to its extremely air-sensitive anion [Cp*2Mn]. The potassium salt [K(THF)2]+[Cp*2Mn] crystallizes upon cooling from hot THF and forms infinite polymeric chains exhibiting strong K⋯C contacts. In the presence of 18-crown-6 the polymeric structure is broken up. Crystals of [K(18-crown-6)(THF)2]+[Cp*2Mn] were obtained upon slow cooling from THF to −80 °C displaying well separated cations and anions.

Graphical abstract: Structural characterization of potassium salts of the decamethylmanganocene anion Cp*2Mn−

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The article was received on 03 Sep 2019, accepted on 22 Oct 2019 and first published on 22 Oct 2019


Article type: Paper
DOI: 10.1039/C9DT03551F
Dalton Trans., 2019,48, 17078-17082

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    Structural characterization of potassium salts of the decamethylmanganocene anion Cp*2Mn

    M. Malischewski and K. Seppelt, Dalton Trans., 2019, 48, 17078
    DOI: 10.1039/C9DT03551F

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