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Tetrakis[bis(trimethylsilyl)ethyne]diiron

Authors

  • Dipl.-Chem. Hartmut Schäufele,

    1. Anorganisch-chemisches Institut der Universität, Im Neuenheimer Feld 270, D-6900 Heidelberg (FRG)
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  • Dr. Hans Pritzkow,

    1. Anorganisch-chemisches Institut der Universität, Im Neuenheimer Feld 270, D-6900 Heidelberg (FRG)
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  • Dr. Ulrich Zenneck

    Corresponding author
    1. Anorganisch-chemisches Institut der Universität, Im Neuenheimer Feld 270, D-6900 Heidelberg (FRG)
    • Anorganisch-chemisches Institut der Universität, Im Neuenheimer Feld 270, D-6900 Heidelberg (FRG)
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  • Reactive π-Complexes of the Electron-rich Transition Metals, Part 7. This work was supported by the Stiftung Volkswagenwerk, Part 6: [1].

  • Dedicated to Professor Heinrich Nöth on the occasion of his 60th birthday

Abstract

original image

The first structurally characterized homoleptic metal-alkyne cluster 3 is formed from bis(trimethylsilyl)ethyne and the complexes 1 and 2, which are obtainable by cocondensation. The yield of 3 with respect to vaporized iron is 30–50%. 3 is diamagnetic, so that in spite of the relatively large iron-iron distance (2.465 Å) the presence of an iron-iron double bond must be assumed.

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