Issue 37, 2010
From the journal:

Dalton Transactions

Conversion of C[triple bond, length as m-dash]C to CO in alkynyl-metal complexes: oxidation of carbon chains capped by carbon-tricobaltclusters†

Michael I. Bruce,*a   Paul A. Humphrey,a   Natasha N. Zaitseva,a   Brian K. Nicholson,b   Brian W. Skeltonc  and  Allan H. Whitec  

* Corresponding authors

a School of Chemistry & Physics, University of Adelaide, Adelaide, South Australia
E-mail: michael.bruce@adelaide.edu.au
Fax: + 61 8 8303 4358

b Department of Chemistry, University of Waikato, Hamilton, New Zealand

c Chemistry, SBBSC, University of Western Australia, Crawley, Western Australia

Abstract

Treatment of Co3(μ3-CC[triple bond, length as m-dash]CR)(μ-dppm)(CO)7 with O2 (air) in the presence of [FcH]PF6 afforded Co3{μ3-CC(O)R}(μ-dppm)(CO)7 by the formal conversion –C[triple bond, length as m-dash]C– + O–O → >C–O + C[triple bond, length as m-dash]O. In this way, complexes with R = Ph, Fc, and W(CO)3Cp, bis-clusters {Co3(μ-dppm)(CO)7}2{μ3:μ3-[[triple bond, length as m-dash]C(O)(C[triple bond, length as m-dash]C)C[triple bond, length as m-dash]]}, {Co3(μ-dppm)(CO)7}2{μ3:μ3-[[triple bond, length as m-dash]C(O)(C[triple bond, length as m-dash]C)xC(O)C[triple bond, length as m-dash]]} (x = 1, 2), and {Co3(μ-dppm)(CO)7}2{μ3:μ3-[[triple bond, length as m-dash]CC(O)C[triple bond, length as m-dash]CC6H4C[triple bond, length as m-dash]CC(O)C[triple bond, length as m-dash]]}, and heterometallic bis-clusters {Co3(μ-dppm)(CO)7}{μ3:μ3-[[triple bond, length as m-dash]CC(O)C[triple bond, length as m-dash]CC[triple bond, length as m-dash]]}{M3(μ-H)3(CO)9} (M = Ru, Os) have been prepared. Single-crystal XRD structure determinations of several products are reported together with that of precursor {Co3(μ-dppm)(CO)7}2{μ3:μ3-[[triple bond, length as m-dash]C(C[triple bond, length as m-dash]C)2C6H4(C[triple bond, length as m-dash]C)2C[triple bond, length as m-dash]]}.

Graphical abstract: Conversion of C [[triple bond, length as m-dash]] C to CO in alkynyl-metal complexes: oxidation of carbon chains capped by carbon-tricobalt clusters

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Article information

DOI
https://doi.org/10.1039/C002997C
Article type
Paper
Submitted
11 Feb 2010
Accepted
11 Jun 2010
First published
12 Aug 2010

Dalton Trans., 2010,39, 8801-8811

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Conversion of C[triple bond, length as m-dash]C to CO in alkynyl-metal complexes: oxidation of carbon chains capped by carbon-tricobalt clusters

M. I. Bruce, P. A. Humphrey, N. N. Zaitseva, B. K. Nicholson, B. W. Skelton and A. H. White, Dalton Trans., 2010, 39, 8801 DOI: 10.1039/C002997C

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