Crystal structures of the samarium amido complexes [Sm(l-X){N(SiMe₃)₂}₂(THF)]₂ with X=Cl, Br

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Karl, Marc ; Seybert, Gert ; Massa, Werner ; Agarwal, Seema ; Greiner, Andreas ; Dehnicke, Kurt:
Crystal structures of the samarium amido complexes [Sm(l-X){N(SiMe₃)₂}₂(THF)]₂ with X=Cl, Br.
In: Zeitschrift für anorganische und allgemeine Chemie. Bd. 625 (1999) Heft 9 . - S. 1405-1407.
ISSN 1521-3749
DOI: https://doi.org/10.1002/(SICI)1521-3749(199909)625:9<1405::AID-ZAAC1405>3.0.CO;2-5

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Abstract

The crystal structures of the title compounds have been determined by X-ray methods. Sm(mu-Cl) . {N(SiMe3)(2)}(2)(THF)](2) (1): Space group P2(1)/n, Z = 2, lattice dimensions at 223 K: a = 1429.5(2), b = 1302.3(3), c = 1658.6(3) pm, beta = 114.212(10)degrees, R = 0.0561. Sm(mu-Br) . {N(SiMe3)(2)}(2)(THF)](2) (2): Space group Pbca, Z = 4, lattice dimensions at 223 K: a = 1850.0(7), b = 1611.0(9), c = 1888.1(6) pm, R = 0.0497.