title: [N,N'-Bis(2,6-diisopropyl-phen-yl)methanimidamidato][η-1,4-bis-(tri-methyl-sil-yl)cyclo-octa-tetra-enyl](tetra-hydro-furan)-samarium(III) toluene monosolvate.
abstract: The title compound, [Sm(C(25)H(35)N(2))(C(14)H(24)Si(2))(C(4)H(8)O)]·C(7)H(8), was prepared by treatment of anhydrous samarium trichloride with a 1:1 mixture of in situ-prepared Li(DippForm) [DippFormH = N,N'-bis-(2,6-diisopropyl-phen-yl)methanimidamide] and Li(2)(COT'') [COT'' = 1,4-bis-(trimethyl-sil-yl)cyclo-octa-tetra-enyl] in tetra-hydro-furan (THF). Despite the presence of two very bulky ligands (COT'' and DippForm), the mol-ecule still contains one coordinated THF ligand. The overall coordination geometry around the Sm(III) atom resembles a three-legged piano-stool with the COT'' ligand being η(8)-coordinated and the DippForm(-) anion acting as an N,N'-chelating ligand [Sm-N = 2.5555 (15) and 2.4699 (15) Å]. The asymmetric unit also contains a disordered mol-ecule of toluene, the refined ratio of the two components being 0.80 (4):0.20 (4).
authors: Chemisches Institut der Otto-von-Guericke-Universität, Universitätsplatz 2, D-39106 Magdeburg, Germany.
authors: Anja
authors: A
authors: Edelmann
authors: Cristian G
authors: CG
authors: Hrib
authors: Liane
authors: L
authors: Hilfert
authors: Steffen
authors: S
authors: Blaurock
authors: Frank T
authors: FT
authors: Edelmann
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