American Chemical Society
ic901982q_si_001.pdf (56.62 kB)

Systematic Method for the Incorporation of the {(η6-Arene)Fe} Fragment into Carborane Cages via [(η6-Arene)Fe]2+ Dications. A Series of [3-(η6-Arene)-closo-3,1,2-FeC2B9H11] Complexes. Reliable Synthesis of Polymethylated [(η6-Arene)2Fe]2+ Cations

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journal contribution
posted on 2009-12-07, 00:00 authored by B. Štíbr, M. Bakardjiev, Josef Holub, Aleš Růžička, Magdalena Kvíčalová
Developed was a systematic method for the incorporation of the {(η6-arene)Fe} fragment into a carborane cage. Reactions between [(η6-arene)2Fe](PF6)2 salts and Tl2[nido-7,8-C2B9H11] in refluxing (CH2)2Cl2 generated a series of [3-(η6-arene)-closo-3,1,2-FeC2B9H11] neutral complexes with variable types of polymethylated arene ligands in the structure. The structures of durene and hexamethylbenzene complexes were established by X-ray diffraction analyses. The work also shows that the original high-temperature method for the preparation of the [(η6-arene)2Fe]2+ dications fails for mesitylene and durene compounds, which was overcome by a reliable room-temperature modification.