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Preparation and x-ray structure analysis of [Rh2Cl2(μ-CO)(μ-vdpp)2] [vdpp=H2C=C(PPh2)2]

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Summary

The complex [Rh2Cl2(μ-CO)(μ-vdpp)2] (1) (vdpp=H2C=C(PPh2)2) was prepared by reaction of [Rh2(CO)4-(μ-Cl)2] with vdpp. When (1) is allowed to stand overnight under an atmosphere of CO without stirringtrans-[Rh2Cl2(CO)2(μ-vdpp)2] is formed as a red precipitate in low yields. On rapid addition of CO the tricarbonyl complex [Rh2(CO)2(μ-CO)(μ-Cl)(μ-vdpp)2]-Cl is formed instead. The chemical behaviour of the vdpp-substituted complex (1) is very similar to that of the corresponding dppm-substituted complex [Rh2(Cl2-(μ-CO)(μ-dppm)2] (dppm=H2C(PPh2)2). this similarity also extends to the molecular structures of both compounds. Unit cell parameters of (1): space group Pben (Z=8),a=2344.7(5),b=1506.9(7),c=3021.6(9)pm. Rh-Rh 267.4(1) pm.

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Authors and Affiliations

  1. Institut für Anorganische Chemie der Universität, Am Hubland, D-8700, Würzburg, F.R.G.

    Christian Egger, Hermann Piana & Ulrich Schubert

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  1. Christian Egger
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  2. Hermann Piana
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  3. Ulrich Schubert
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Egger, C., Piana, H. & Schubert, U. Preparation and x-ray structure analysis of [Rh2Cl2(μ-CO)(μ-vdpp)2] [vdpp=H2C=C(PPh2)2]. Transition Met Chem 16, 185–188 (1991). https://doi.org/10.1007/BF01032830

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  • DOI: https://doi.org/10.1007/BF01032830

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