Template Synthesis, Metalation, and Self-Assembly of Protic Gold(I)/(NHC)2 Tectons Driven by Metallophilic Interactions

A new protocol for the synthesis of protic bis(N‐heterocyclic carbene) complexes of AuI by a stepwise metal‐controlled coupling of isocyanide and propargylamine is described. They are used as tectons for the construction of supramolecular architectures through metalation and self‐assembly. Notably a...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2016-07, Vol.55 (29), p.8386-8390
Main Authors: Ruiz, Javier, García, Lucía, Sol, Daniel, Vivanco, Marilín
Format: Article
Language:English
Subjects:
Bridging
Chains (polymeric)
Clusters
Construction
copper
Copper oxides
Coupling
Gold
heterometallic complexes
Metals
N-heterocyclic carbenes
Nanostructure
Scaffolds
Self-assembly
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Summary:A new protocol for the synthesis of protic bis(N‐heterocyclic carbene) complexes of AuI by a stepwise metal‐controlled coupling of isocyanide and propargylamine is described. They are used as tectons for the construction of supramolecular architectures through metalation and self‐assembly. Notably a unique polymeric chain of CuI with alternate AuI/bis(imidazolate) bridging scaffolds and strong unsupported CuI–CuI interactions has been generated, as well as a 28‐metal‐atoms cluster containing a nanopiece of Cu2O trapped by peripheral AuI/bis(imidazolate) moieties. Robust golden architectures: Gold(I) and NaH promote double coupling of isocyanide and propargylamine to give protic AuI/(NHC)2 species, which upon metalation are used in the construction of supramolecular architectures containing a polymeric chain of CuI and a nanoscopic piece of cuprite (see scheme).
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201603688