Issue 6, 2021

Macrocyclic and acyclic supramolecular elements for co-precipitation of square-planar gold(iii) tetrahalide complexes

Abstract

Macrocyclic hosts have long been used for guest encapsulation, and recently a new application has emerged; employment as supramolecular elements for capture and recovery of gold through host/guest co-precipitation. The guests are square-planar tetrahaloaurate anions, practically important gold complexes with a capacity to engage in non-covalent interactions such as hydrogen bonding and Au–π interactions. The successful macrocyclic hosts for co-precipitation include cyclodextrins, cucurbiturils, and cyclophanes, with recent expansion of the structural scope to include acyclic amides.

Graphical abstract: Macrocyclic and acyclic supramolecular elements for co-precipitation of square-planar gold(iii) tetrahalide complexes

Article information

Article type
Highlight
Submitted
10 dec 2020
Accepted
13 jan 2021
First published
28 jan 2021

Org. Chem. Front., 2021,8, 1294-1301

Author version available

Macrocyclic and acyclic supramolecular elements for co-precipitation of square-planar gold(III) tetrahalide complexes

C. C. Shaffer and B. D. Smith, Org. Chem. Front., 2021, 8, 1294 DOI: 10.1039/D0QO01562H

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