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Issue 16, 2019
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Synthesis and structure of a family of rhodium polystannide clusters [Rh@Sn10]3–, [Rh@Sn12]3–, [Rh2@Sn17]6– and the first triply-fused stannide, [Rh3@Sn24]5–

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Abstract

Through relatively subtle changes in reaction conditions, we have been able to isolate four distinct Rh/Sn cluster compounds, [Rh@Sn10]3−, [Rh@Sn12]3−, [Rh2@Sn17]6− and [Rh3@Sn24]5–, from the reaction of K4Sn9 with [(COE)2Rh(μ-Cl)]2(COE = cyclooctene). The last of these has a hitherto unknown molecular topology, an edge-fused polyhedron containing three Rh@Sn10 subunits, and represents the largest endohedral Group 14 Zintl cluster yet to have been isolated from solution. DFT has been used to place these new species in the context of known cluster chemistry. ESI-MS experiments on the reaction mixtures reveal the ubiquitous presence of {RhSn8} fragments that may play a role in cluster growth.

Graphical abstract: Synthesis and structure of a family of rhodium polystannide clusters [Rh@Sn10]3–, [Rh@Sn12]3–, [Rh2@Sn17]6– and the first triply-fused stannide, [Rh3@Sn24]5–

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Publication details

The article was received on 05 Sep 2018, accepted on 10 Mar 2019 and first published on 11 Mar 2019


Article type: Edge Article
DOI: 10.1039/C8SC03948H
Chem. Sci., 2019,10, 4394-4401
  • Open access: Creative Commons BY-NC license
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    Synthesis and structure of a family of rhodium polystannide clusters [Rh@Sn10]3–, [Rh@Sn12]3–, [Rh2@Sn17]6– and the first triply-fused stannide, [Rh3@Sn24]5–

    C. Liu, X. Jin, L. Li, J. Xu, J. E. McGrady and Z. Sun, Chem. Sci., 2019, 10, 4394
    DOI: 10.1039/C8SC03948H

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