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The Synthesis, Crystal, and Molecular Structure of Two Mononuclear Arylimido Tungsten Tetrachloride Complexes, [WCl4(NC6H4I-p)(CH3CN)] and [WCl4(NC6H3-2,6-i-Pr 2)(CH3CN)]

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Abstract

We report two new crystal and molecular structures of the following monomeric arylimido tungsten tetrachloride complexes, [WCl4(NC6H4I-p)(CH3CN)] (1) and [WCl4(NC6H3-2,6-i-Pr 2)(CH3CN)] (2), containing weakly coordinating acetonitrile ligands. Complex 1 crystallizes in the triclinic space group P-1 with lattice parameters a = 6.292(1) Å, b = 8.251(1) Å, c = 15.126(2) Å, α = 78.42(1)°, β = 82.33(2)°, γ = 77.89(1)°, V = 748.7(3) Å3, Z = 2. Complex 2 crystallizes in the monoclinic space group P2 1 /c with lattice parameters a = 9.629(1) Å, b = 16.790(2) Å, c = 24.155(2) Å, β = 95.42(1)°, V = 3888.7(6) Å3, Z = 8. Despite the different electronic/steric characteristics of the arylimido ligands, the structures show no significant differences in bond lengths or bond angles in the core {N–W(Cl)4–N} fragment and are similar to those reported for other arylimido tungsten tetrachloride complexes.

Index Abstract

The Synthesis, Crystal, and Molecular Structure of Two Mononuclear Arylimido Tungsten Tetrachloride Complexes, [WCl 4 (NC 6 H 4 I -p ) (CH 3 CN)] and [WCl 4 (NC 6 H 3 - 2,6- i-Pr 2 )(CH 3 CN)]

Jeffrey C. Duhacek, Tasneem A. Siddiquee, Dennis W. Bennett, and Dean C. Duncan*

The crystal and molecular structures of two new arylimido tungsten tetrachloride complexes are reported herein.

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Authors and Affiliations

  1. Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee, P.O. Box 403, Milwaukee, WI, 53201, USA

    Jeffrey C. Duhacek, Tasneem A. Siddiquee, Dennis W. Bennett & Dean C. Duncan

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  1. Jeffrey C. Duhacek
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  2. Tasneem A. Siddiquee
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  3. Dennis W. Bennett
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  4. Dean C. Duncan
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Correspondence to Dean C. Duncan.

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Duhacek, J.C., Siddiquee, T.A., Bennett, D.W. et al. The Synthesis, Crystal, and Molecular Structure of Two Mononuclear Arylimido Tungsten Tetrachloride Complexes, [WCl4(NC6H4I-p)(CH3CN)] and [WCl4(NC6H3-2,6-i-Pr 2)(CH3CN)]. J Chem Crystallogr 38, 431–435 (2008). https://doi.org/10.1007/s10870-008-9334-x

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