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. 2021 Apr 16;77(Pt 5):537-541.
doi: 10.1107/S2056989021003844. eCollection 2021 May 1.

Crystal structure of tris-(2-di-cyclo-hexyl-phosphino-2',6'-dimeth-oxy-1,1'-biphenyl-κ P)-μ-oxoethenyl-idene- triangulo-trigold(I) bis-(tri-fluoro-methane-sulfon-yl)imide

Colin T Hartgerink  1 , Richard J Staples  2 , Carolyn E Anderson  1
Affiliations

Crystal structure of tris-(2-di-cyclo-hexyl-phosphino-2',6'-dimeth-oxy-1,1'-biphenyl-κ P)-μ-oxoethenyl-idene- triangulo-trigold(I) bis-(tri-fluoro-methane-sulfon-yl)imide

Colin T Hartgerink et al. Acta Crystallogr E Crystallogr Commun. .

Abstract

The title ketenyl-idene, [Au3(C2O)(C26H35O2P)3](C2F6NO4S2), was obtained upon exposure of [2-(di-cyclo-hexyl-phosphino)-2',6'-dimeth-oxy-1,1'-biphen-yl]gold(I) bis-(tri-fluoro-methane-sulfon-yl)imide to acetic anhydride at elevated temperature. The ketenyl-idene bridge caps the tri-gold cluster. The title compound has provided crystals that upon analysis represent the first tri-gold ketenyl-idene with atomic distances indicative of bonding inter-action between the gold atoms.

Keywords: crystal structure; ketenyl­idene; tri-gold.

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Figures

Figure 1
Figure 1
The mol­ecular structure of the title compound with select atom labeling. Displacement ellipsoids are drawn at the 50% probability level. Hydrogen atoms are omitted for clarity reasons.
Figure 2
Figure 2
Packing diagram of the title compound along the b axis.
Figure 3
Figure 3
Reaction scheme. The title ketenyl­idene 3 was discovered as an unexpected by-product of a reaction exploring the gold(I)-catalyzed rearrangement of 2-propargyloxypyridine 1.
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