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

Author(s) Frogley, B.J.; Hill, A.F.; Watson, L.J.
Journal Dalton Trans
Date Published 2019 Sep 07
Abstract

The new tungsten selenocarbonylate [NEt][W([triple bond, length as m-dash]CSe)(CO)(Tp*)] (Tp* = hydrotris(dimethylpyrazolyl)borate) reacts with group 11 reagents to provide σ-π or isoselenocarbonyl complexes of the form [WM(μ-CSe)(CO)(PR)(Tp*)] (M = Cu, Ag, Au; R = Ph, Cy; n = 1,3) depending on the phosphine stoichiometry or steric bulk. With [Cu(NCMe)]PF and 1,4,7-trithiacyclononane ([9]aneS) however, the tetrametallic species [WCu(μ-CSe)(CO)([9]aneS)(Tp*)](PF) 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.

DOI 10.1039/c9dt02958c
ISSN 1477-9234
Citation Dalton Trans. 2019;48(33):1259812606.

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