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The Complex Coordination Landscape of a Digold(I) U‐Shaped Metalloligand
Author(s) -
Ibáñez Susana,
Poyatos Macarena,
Peris Eduardo
Publication year - 2018
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201811711
Subject(s) - chemistry , ligand (biochemistry) , pyrene , duplex (building) , crystallography , coordination complex , stereochemistry , metal , organic chemistry , dna , biochemistry , receptor
A U‐shaped di‐gold metallotweezer with two pyrene‐imidazolylidene edges and a xanthenyl‐bis‐alkynyl connector was prepared. This metallotweezer acts as metalloligand in the presence of Cu + , Tl + , or Ag + , showing three clearly distinct coordination patterns depending on the cation used. The coordination to Cu + leads to a complex in which the metalloligand is coordinated in a pincer form. The reaction with Tl + affords a complex in which the ligand is acting as a ϰ 2 ‐( trans )‐chelate ligand. The reaction with Ag + leads to a self‐assembled structure, with two silver cations encased inside the cavity of a duplex structure formed by two self‐assembled metallotweezers.