title: Systematic method for the incorporation of the {(eta(6)-arene)Fe} fragment into carborane cages via [(eta(6)-arene)Fe]2+ dications. A series of [3-(eta(6)-arene)-closo-3,1,2-FeC2B9H11] complexes. Reliable synthesis of polymethylated [(eta(6)-arene)2Fe]2+ cations.
abstract: Developed was a systematic method for the incorporation of the {(eta(6)-arene)Fe} fragment into a carborane cage. Reactions between [(eta(6)-arene)(2)Fe](PF(6))(2) salts and Tl(2)[nido-7,8-C(2)B(9)H(11)] in refluxing (CH(2))(2)Cl(2) generated a series of [3-(eta(6)-arene)-closo-3,1,2-FeC(2)B(9)H(11)] 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 [(eta(6)-arene)(2)Fe](2+) dications fails for mesitylene and durene compounds, which was overcome by a reliable room-temperature modification.
authors: Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, 25068 Rez, Czech Republic. stibr@iic.cas.cz
authors: B
authors: B
authors: Stíbr
authors: M
authors: M
authors: Bakardjiev
authors: Josef
authors: J
authors: Holub
authors: Ales
authors: A
authors: Růzicka
authors: Magdalena
authors: M
authors: Kvícalová