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Issue 98, 2017
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A route to small clusters: a twisted half-hexagram-shaped M4(OH)4 cluster and its capacity for hosting closed-shell metals

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Abstract

By combining different oxidation states, coordination indices and bridging systems, it has been possible to obtain the structurally novel M4(OH)4 cluster core (M = transition metal) found in the organometallic compound (NBu4)2[PtIVPtII3(C6Cl5)82-OH)23-OH)2] (1). The cluster is formed by two (μ3-OH) and two (μ2-OH) units that bond platinum atoms in different oxidation states. The cluster core geometry can best be described as a half-hexagram. Compound 1 is an excellent precursor for preparing heterometallic clusters since it can host d10 or s2 Lewis-acid metal centers through Pt→M dative bonds, as demonstrated by its reaction with Ag(I) to produce the heterometallic [Ag2PtIVPtII3(C6Cl5)82-OH)23-OH)2] (2), which has four unbridged Pt–Ag bonds.

Graphical abstract: A route to small clusters: a twisted half-hexagram-shaped M4(OH)4 cluster and its capacity for hosting closed-shell metals

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The article was received on 04 Oct 2017, accepted on 12 Nov 2017 and first published on 20 Nov 2017


Article type: Communication
DOI: 10.1039/C7CC07712B
Chem. Commun., 2017,53, 13121-13124
  • Open access: Creative Commons BY-NC license
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    A route to small clusters: a twisted half-hexagram-shaped M4(OH)4 cluster and its capacity for hosting closed-shell metals

    I. Ara, M. A. García-Monforte, R. González, L. R. Falvello and M. Tomás, Chem. Commun., 2017, 53, 13121
    DOI: 10.1039/C7CC07712B

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