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Isolable tris(alkyne) and bis(alkyne) complexes of gold(I).

Authors
  • Das, Animesh
  • Dash, Chandrakanta
  • Yousufuddin, Muhammed
  • Celik, Mehmet Ali
  • Frenking, Gernot
  • Dias, H V Rasika
Type
Published Article
Journal
Angewandte Chemie International Edition in English
Publisher
Wiley (John Wiley & Sons)
Publication Date
Apr 16, 2012
Volume
51
Issue
16
Pages
3940–3943
Identifiers
DOI: 10.1002/anie.201200080
PMID: 22389258
Source
Medline
License
Unknown

Abstract

Golden trefoils: Tris(alkyne)gold complex [(coct)(3)Au][SbF(6)] (see picture; 1-SbF(6)) can be synthesized from cyclooctyne (coct) and AuSbF(6) generated in situ. Treatment of AuCl with cyclooctyne led to the bis(alkyne)gold complex [Au(coct)(2)Cl] (2). DFT analysis indicates that the cyclooctyne ligands are net electron donors in 1 but overall electron acceptors in 2. AuSbF(6) is shown to mediate [2+2+2] cycloaddition reactions of alkynes.

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