Structural characterisation and properties of heteronuclear cluster [(η5-C5Me5)2Rh2Ru23-CO)2(CO)6]

W. Edward Lindsell, Kevin J. McCullough

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7 Citations (Scopus)


One of the three products of the reaction, earlier reported, between [Cp*Rh(CO)2] (Cp* = ?5-C5Me5) and [Ru3(CO)12] in toluene at 70°C in the presence of gaseous H2 has now been fully characterised as [Cp*2Rh2Ru23-CO)2(CO)6]. A single crystal X-ray diffraction study {space group Ccca, a 16.019(3), b 19.168(3), c 20.743(3) Å; 2697 independent reflections with I>3s(I); final R = 0.037, R2 = 0.050} has revealed a tetrahedral metal core with triply-bridging CO ligands on the two Rh2Ru faces. This structure is consistent with IR and 13C{1H} and 1H NMR spectra, although the ion of highest mass in the FAB-mass spectrum is [M - 28]+, formed by loss of CO from the parent cluster. The cluster is readily cleaved at ambient temperatures by reaction with CO or H2. © 1988.

Original languageEnglish
Pages (from-to)425-431
Number of pages7
JournalJournal of Organometallic Chemistry
Issue number3
Publication statusPublished - 7 Jun 1988


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