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The synthesis, structure and reactivity of new tetra- and pentacoordinated rhodium(I) complexes

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Summary

Tetracoordinated complexes of the [Rh{P(OPh)3}3X] type (X=N3, NO2 or NCS) were obtained in the reaction of [Rh{P(OPh)3}3Cl] with NaX. Pentacoordinated [Rh{P(OPh)3}4X] complexes (X=HSO4, H2PO4, MeCO2, HCO2 or ClO4) were prepared by treating [Rh{P(OPh)3}3 {P(OC6H4)(OPh)2}] or [Rh(acac) {P(OPh)3}2]+P(OPh)3 (Hacac=acetylacetone) with acids HX.

The groups of complex differ in reactivity towards CO and H2; [Rh{P(OPh)3}3X] complexes do not react with dihydrogen and with CO they produce [Rh{P(OPh)3}2(CO)X]. The [Rh{P(OPh)3}4X] complexes take up H2 reversibly, and with CO they give [Rh{P(OPh)3}3(CO)2X] compounds.

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Authors and Affiliations

  1. Institute of Chemistry, University of Wrocław, 50-383, Wrocław, Poland

    Anna M. Trzeciak & J. J. Ziólkowski

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  1. Anna M. Trzeciak
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  2. J. J. Ziólkowski
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Trzeciak, A.M., Ziólkowski, J.J. The synthesis, structure and reactivity of new tetra- and pentacoordinated rhodium(I) complexes. Transition Met Chem 14, 135–138 (1989). https://doi.org/10.1007/BF01040608

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  • DOI: https://doi.org/10.1007/BF01040608

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