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

B Stíbr; M Bakardjiev; Josef Holub; Ales Růzicka; Magdalena Kvícalová

doi:10.1021/ic901982q

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

Inorg Chem. 2009 Dec 7;48(23):10904-6. doi: 10.1021/ic901982q.

Authors

B Stíbr¹, M Bakardjiev, Josef Holub, Ales Růzicka, Magdalena Kvícalová

Affiliation

¹ Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, 25068 Rez, Czech Republic. stibr@iic.cas.cz

PMID: 19943689
DOI: 10.1021/ic901982q

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.