Iron(III) Half‐Sandwich Complexes of the Two‐Legged Piano‐Stool [CpFe(aryl)Cl] Type from the Corresponding Aryliron(II) Precursors
| Autor: | Yu Sun, Gotthelf Wolmershäuser, Helmut Sitzmann, Heiko Bauer, Mark W. Wallasch |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010405 organic chemistry
Aryl chemistry.chemical_element 010402 general chemistry Ring (chemistry) 01 natural sciences Chloride Medicinal chemistry 0104 chemical sciences Inorganic Chemistry chemistry.chemical_compound chemistry Cyclopentadienyl complex Bromide medicine Nucleophilic substitution Organic chemistry Hexachloroethane medicine.drug Palladium |
| Zdroj: | European Journal of Inorganic Chemistry. 2017:505-510 |
| ISSN: | 1099-0682 1434-1948 |
| DOI: | 10.1002/ejic.201601026 |
| Popis: | Instead of reacting with the σ-mesityliron(II) complex [Cp′′′Fe(σ-C6H2Me3-2,4,6)] (1; Cp′′′ = 1,2,4-tri-tert-butylcyclopentadienyl) to form a cyclohexadienyl(cyclopentadienyl)iron(II) sandwich complex with palladium coordination to the ipso carbon atom of the six-membered ring, palladium(II) chloride oxidized 1 to the mesityliron(III) complex [Cp′′′Fe(σ-C6H2Me3-2,4,6)Cl] (5) with a two-legged piano-stool geometry. The oxidation of [4CpFe(σ-C6H2Me3-2,4,6)] (4; 4Cp = tetraisopropylcyclopentadienyl) to [4CpFe(σ-C6H2Me3-2,4,6)Cl] (6) was accomplished with hexachloroethane. Two other derivatives, [4CpFe(σ-C6H3iPr2-2,6)Cl] (7) and [5CpFe(σ-C6H3iPr2-2,6)Cl] (8; 5Cp = pentaisopropylcyclopentadienyl), could also be obtained by the same method. The molecular structures of 5 and 6 are compared with the structure of the (tetraisopropylcyclopentadienyl)iron(III) dibromide [4CpFeBr2] (9), which was formed from the iron(II) analogue [4CpFe(µ-Br)]2 during attempted nucleophilic substitution with an arylmagnesium bromide. |
| Databáze: | OpenAIRE |
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