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A Silicon-Bridged Bis(substituted Cp) Yttrium Complex

Marsh, Richard E. and Schaefer, William P. and Coughlin, E. Bryan and Bercaw, John E. (1992) A Silicon-Bridged Bis(substituted Cp) Yttrium Complex. Acta Crystallographica Section C, 48 (10). pp. 1773-1776. ISSN 0108-2701. doi:10.1107/S0108270192001987.

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rac-Bis(tetrahydrofuran)lithium [bis(2-trimethylsilyl-4-tert-butyl-η^5-cyclopentadienyl)dimethylsilane] dichloroyttrate, [Li(C_4H_80)_2][Y(C_(26)H_(48)-Si_3)Cl_2], M_r= 755.87, triclinic, Pl, ɑ = 13.110 (8), b = 17.163 (15), c = 20.623 (14) Å, ɑ= 104.02 (7), β = 99.38 (5), y = 100.24 (6)º, V = 4326 (6) Å^3, z = 4, D_x = 1.16 g cm^(-3), λ(Mo Kɑ)= 0.71073 Å, μ = 15.86 cm^(-1), F(000) = 1608, room temperature, R = 0.056 for 6136 reflections with F_o^2 > 3σ(F_o^2). There are two virtually identical molecules in the asymmetric unit. In each, the Y atom is tetrahedrally coordinated to a substituted Si-bridged bis(cyclopentadienyl) ligand and to two Cl ions in the cleft. The Li atom is 2.35 Å from each Cl ion, and two molecules of tetrahydrofuran are connected to the Li, completing its tetrahedral coordination.

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Additional Information:© 1992 International Union of Crystallography. Received 9 December 1991; accepted 11 February 1992. This work has been supported by the US DOE Office of Basic Energy Sciences (Grant No. DE-FG03-85-ER113431) and by Exxon Chemicals Americas.
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Department of Energy (DOE)DE-FG03-85-ER113431
Exxon Chemicals AmericasUNSPECIFIED
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Caltech Division of Chemistry and Chemical Engineering8536
Issue or Number:10
Record Number:CaltechAUTHORS:20160914-141706830
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Official Citation:Marsh, R. E., Schaefer, W. P., Coughlin, E. B. and Bercaw, J. E. (1992), A silicon-bridged bis(substituted Cp) yttrium complex. Acta Crystallographica Section C, 48: 1773–1776. doi: 10.1107/S0108270192001987
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70355
Deposited By: Ruth Sustaita
Deposited On:29 Sep 2016 23:20
Last Modified:11 Nov 2021 04:27

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