Date Published: June 01, 2011
Publisher: International Union of Crystallography
Author(s): Lukas Richtera, Vojtech Jancik, Sona Hermanova, Karel Krpoun, Kimberly Thompson-Montero.
The title compound, di-μ-chlorido-dichlorido-1κ2Cl-tetrakis(tetrahydrofuran)-1κ2O,2κ2O-lithiumytterbium(III), [LiYbCl4(C4H8O)4], was prepared by the reaction of YbCl3(THF)3 with LiCl in THF (THF is tetrahydrofuran). The central motif of the structure is a Yb(μ-Cl)2Li ring. The Yb atom is hexacoordinated to four Cl atoms and two THF molecules oriented in a trans fashion. The Li atom has a tetrahedral environment and is coordinated to two Cl atoms and two THF molecules. No intermolecular interactions other than van der Waals forces were observed. Two of the THF molecules are disordered over two positions.
For the isotypic yttrium compound, see Mingqing et al. (1986 ▶). For similar lithium compounds with other trivalent cations, see: Chitsaz et al. (2001 ▶) for VIII; Neumüller et al. (1996 ▶) for TiIII; McGuinness et al. (2006 ▶) for CrIII.