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- W4248620072 abstract "Das aus Lithium-tris(trimethylsilyl)silanid—DME (2/3) Das Hexamer weist zwei aus Lithium- und tris(trimethylsilyl)silyl-substituierten Telluratomen in alternierender Abfolge aufgebaute, schwach gewellte sechsgliedrige Ringe mit Sesselkonformation auf, die über ein Inversionszentrum zu einem verzerrt hexagonalen Prisma verknüpft sind. Die endocyclischen Winkel in den sechs- und viergliedrigen Ringen dieses Polyeders variieren zwischen 102 und 126° bzw. 73 und 83° am vierfach koordinierten Tellur sowie zwischen 112 und 137° bzw. 96 und 106° am dreifach koordinierten Lithium. Einen signifikanten Unterschied beobachtet man auch zwischen den zu 273 bzw. 280 pm gemittelten basalen und axialen LiTe-Abständen. Metal Derivatives of Molecular Compounds. V. Synthesis and Structure of Hexakis{lithium-[tris(trimethylsilyl)silyl]tellanide}—Cyclopentane (1/1). Lithium [tris(trimethylsilyl)silyl]tellanide—DME (1/1) [1 b] prepared from lithium tris(trimethylsilyl)silanide—DME (2/3) [3] and tellurium, reacts with hydrogen chloride in toluene to form [tris(trimethylsilyl)silyl]tellane (1) [1 b]. Subsequent metalation of this compound with lithium n-butanide gives lithium [tris(trimethylsilyl)silyl]tellanide (2) free of coordinating solvent. Pale yellow crystals are obtained from cyclopentane solution. An X-ray structure determination {P1; a = 1 558.5(7); b = 1 598.4(8); c = 1 643.5(6) pm; α = 117.64(4); β = 91.63(3); γ = 117.19(3)°; Z = 1; R = 0.032} shows them to be the (1/1) packing complex (2′) of hexakis{lithium-[tris(trimethylsilyl)silyl]tellanide} and disordered cyclopentane molecules —{LiTeSi[Si(CH3)3]3}6 · C5H10." @default.
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- W4248620072 date "1993-04-01" @default.
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- W4248620072 title "Metallderivate von Molek�lverbindungen. V. Synthese und Struktur von Hexakis{lithium-[tris(trimethylsilyl)silyl]tellanid}?Cyclopentan (1/1)" @default.
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- W4248620072 doi "https://doi.org/10.1002/zaac.19936190404" @default.
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