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Neue [{Cp(CO)2Mo}2ESbCl]-Cluster mit tetraedrischem Mo2SbE-Gerüst (E = S, Se)

Novel [{Cp(CO)2Mo}2ESbCl]-Clusters With Tetrahedral Mo2SbE-Core (E = S, Se)

Authors

  • Christoph Wagner,

    1. Institut für Chemie, Naturwissenschaftliche Fakultät II, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 2, 06120 Halle, Germany
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  • Prof. Dr. Kurt Merzweiler

    Corresponding author
    1. Institut für Chemie, Naturwissenschaftliche Fakultät II, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 2, 06120 Halle, Germany
    • Institut für Chemie, Naturwissenschaftliche Fakultät II, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 2, 06120 Halle, Germany
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  • Professor Hansgeorg Schnöckel zum 70. Geburtstag gewidmet

Abstract

Reaction of [{Cp(CO)3Mo}2SbCl] with S8 or Se8 leads to the formation of cluster compounds [{Cp(CO)2Mo}2ESbCl] (E = S, Se). [{Cp(CO)2Mo}2SSbCl] crystallizes monoclinic, space group P21/n with a = 812.28(3), b = 855.65(4), c = 2441.01(9) pm and β = 90.149(3)°; [{Cp(CO)2Mo}2SeSbCl]·CH2Cl2 crystallizes triclinic, space group Pequation image with a = 828.82(9), b = 1002.8(1), c = 1340.0(2) and α = 109.24(1), β = 100.87(1), γ = 96.81(1)°. For both compounds X-ray crystal structure analysis reveals tetrahedral Mo2SbE cluster cores with Sb–E bond lengths of 256.8(1) pm (E = S) and 265.3(1) (E = Se). According to the 18 electron rule the [{Cp(CO)2Mo}2ESbCl] clusters can be regarded as complexes of the 4 electron donator ESbCl that is coordinated “side-on” to a {Cp(CO)2Mo}2 fragment.

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