title: μ(2)-Acetone-diacetone[μ(3)-tris-(trifluoro-meth-yl)methano-lato]bis-[μ(2)-tris-(trifluoro-meth-yl)methano-lato]trilithium.
abstract: The title compound, [Li(3)(C(4)F(9)O)(3)(C(3)H(6)O)(3)], features an open Li/O cube with an Li ion missing at one corner. Three of the four bridging O atoms of the cube carry a fluorinated tert-butyl residue, whereas the fourth is part of an acetone mol-ecule. Two of the Li atoms are further bonded to a non-bridging acetone mol-ecule. Two of the lithium ion coordination geometries are very distorted LiO(4) tetra-hedra; the third could be described as a very distorted LiO(3) T-shape with two distant F-atom neighbours. The Li⋯Li contact distances for the three-coordinate Li(+) ion [2.608 (14) and 2.631 (12) Å] are much shorter that the contact distance [2.940 (13) Å] between the tetra-hedrally coordinated species.
authors: Institut für Anorganische Chemie, J. W. Goethe-Universität Frankfurt, Max-von-Laue-Strasse 7, 60438 Frankfurt/Main, Germany.
authors: Hannes
authors: H
authors: Vitze
authors: Hans-Wolfram
authors: HW
authors: Lerner
authors: Michael
authors: M
authors: Bolte
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677