title: Reversible cleavage and recombination of an acetylenic carbon-carbon bond on a tetrairon cluster coupled with a two-electron redox reaction.
abstract: Two-electron reduction of [(eta5-C5H4Me)4Fe4(mu3-CH)2(mu3-CO)2](PF6)2 (1) results in the coupling of two methylidyne ligands to form (eta5-C5H4Me)4Fe4(HCCH)(mu3-CO)2 (2), the two-electron oxidation of which reproduces 1. Structures of 1 and 2 were determined by X-ray diffraction analysis.
authors.affiliation: Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan. mokazaki@mail.tains.tohoku.ac.jp
authors.forename: Masaaki
authors.initials: M
authors.lastname: Okazaki
authors.forename: Takeo
authors.initials: T
authors.lastname: Ohtani
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Ogino