title: Two-coordinate iron(I) complex [Fe{N(SiMe3)2}2](-) : synthesis, properties, and redox activity.
abstract: First-row two-coordinate complexes are attracting much interest. Herein, we report the high-yield isolation of the linear two-coordinate iron(I) complex salt [K(L)][Fe{N(SiMe3 )2 }2 ] (L=18-crown-6 or crypt-222) through the reduction of either [Fe{N(SiMe3 )2 }2 ] or its three-coordinate phosphine adduct [Fe{N(SiMe3 )2 }2 (PCy3 )]. Detailed characterization is gained through X-ray diffraction, variable-temperature NMR spectroscopy, and magnetic susceptibility studies. One- and two-electron oxidation through reaction with I2 is further found to afford the corresponding iodo iron(II) and diiodo iron(III) complexes.
authors.affiliation: CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, 31077 Toulouse (France) http://www.lcc-toulouse.fr/lcc/spip.php?article433; Université de Toulouse, UPS, INPT, 31077 Toulouse (France).
authors.forename: C Gunnar
authors.initials: CG
authors.lastname: Werncke
authors.forename: Philip C
authors.initials: PC
authors.lastname: Bunting
authors.forename: Carine
authors.initials: C
authors.lastname: Duhayon
authors.forename: Jeffrey R
authors.initials: JR
authors.lastname: Long
authors.forename: Sébastien
authors.initials: S
authors.lastname: Bontemps
authors.forename: Sylviane
authors.initials: S
authors.lastname: Sabo-Etienne
keywords: iron complexes; iron(I); oxidation; single-molecule magnets; two-coordinate complexes