Angewandte Chemie - International Edition
Angewandte Chemie - International Edition
5 years ago

High-Fidelity, Narcissistic Self-Sorting in the Synthesis of Organometallic Assemblies from Poly-NHC Ligands

High-Fidelity, Narcissistic Self-Sorting in the Synthesis of Organometallic Assemblies from Poly-NHC Ligands
Narayan Sinha, Tristan T. Y. Tan, F. Ekkehardt Hahn, Eduardo Peris
Highly selective, narcissistic self-sorting has been observed in the one-pot synthesis of three organometallic molecular cylinders of type [M3{L-(NHC)3}2](PF6)3 (M=Ag+, Au+; L=1,3,5-benzene, triphenylamine, or 1,3,5-triphenylbenzene) from L-(NHC)3 and silver(I) or gold(I) ions. The molecular cylinders contain only one type of tris-NHC ligand with no crossover products detectable. Transmetalation of the tris-NHC ligands from Ag+ to Au+ in a one-pot reaction with retention of the supramolecular structures is also demonstrated. High-fidelity self-sorting was also observed in the one-pot reaction of benzene-bridged tris-NHC and tetrakis-NHC ligands with Ag2O. This study for the first time extends narcissistic self-sorting in metal–ligand interactions from Werner-type complexes to organometallic derivatives. Perfect sorting! Unique narcissistic self-sorting has been observed in the one-pot reaction of three different trigonal trisimidazolium salts with Ag2O. Only three cylinder-like trinuclear complexes each bearing two identical tris-NHC ligands were obtained from this reaction. Self-sorting was also observed in the subsequent transmetalation of the tris-NHC ligands from the three silver(I) complexes to give three gold(I) complexes.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/anie.201702637

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