Molecules (Jun 2022)

The New Di-Gold Metallotweezer Based on an Alkynylpyridine System

  • Susana Ibáñez

DOI
https://doi.org/10.3390/molecules27123699
Journal volume & issue
Vol. 27, no. 12
p. 3699

Abstract

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We developed a simple method to prepare one gold-based metallotweezer with two planar Au-pyrene-NHC arms bound by a 2,6-bis(3-ethynyl-5-tert-butylphenyl)pyridine unit. This metallotweezer is able to bind a series of polycyclic aromatic hydrocarbons through the π-stacking interactions between the polyaromatic guests and the pyrene moieties of the NHC ligands. The metallotweezer was also used as a host for the encapsulation of planar metal complexes, such as the Au(III) complex [Au(C^N^C)(C≡CC6H4-OCH3-p)], for which there is a large binding constant of 946 M−1.

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