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Issue 33, 2019
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New binding modes for CSe: coinage metal coordination to a tungsten selenocarbonyl complex

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Abstract

The new tungsten selenocarbonylate [NEt4][W([triple bond, length as m-dash]CSe)(CO)2(Tp*)] (Tp* = hydrotris(dimethylpyrazolyl)borate) reacts with group 11 reagents to provide σ–π or isoselenocarbonyl complexes of the form [WM(μ-CSe)(CO)2(PR3)n(Tp*)] (M = Cu, Ag, Au; R = Ph, Cy; n = 1,3) depending on the phosphine stoichiometry or steric bulk. With [Cu(NCMe)4]PF6 and 1,4,7-trithiacyclononane ([9]aneS3) however, the tetrametallic species [WCu3(μ-CSe)(CO)2([9]aneS3)3(Tp*)](PF6)2 is obtained in which one Cu coordinates to the W[triple bond, length as m-dash]C triple bond and two coordinate to the Se atom.

Graphical abstract: New binding modes for CSe: coinage metal coordination to a tungsten selenocarbonyl complex

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Publication details

The article was received on 19 Jul 2019, accepted on 23 Jul 2019 and first published on 25 Jul 2019


Article type: Paper
DOI: 10.1039/C9DT02958C
Dalton Trans., 2019,48, 12598-12606

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    New binding modes for CSe: coinage metal coordination to a tungsten selenocarbonyl complex

    B. J. Frogley, A. F. Hill and L. J. Watson, Dalton Trans., 2019, 48, 12598
    DOI: 10.1039/C9DT02958C

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