Selective Gold Recovery and Catalysis in a Highly Flexible Methionine-Decorated Metal-Organic Framework

Journal article (2016)

Authors

Marta Mon Universitat de València

J. Ferrando Soria Universitat de València

Thais Grancha Universitat de València

Francisco R. Fortea-Pérez Universitat de València

J. Gascon Sabate

Antonio Leyva-Pérez Universitat Politécnica de Valencia

Donatella Armentano University of Calabria

Emilio Pardo Universitat de València

To reference this document use:

http://resolver.tudelft.nl/uuid:abe24ad7-470f-4aa2-a9bb-a0610f9f8a33

More Info

expand_more

Published Date

2016

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Abstract

A novel chiral 3D bioMOF exhibiting functional channels with thio-alkyl chains derived from the natural amino acid l-methionine (1) has been rationally prepared. The well-known strong affinity of gold for sulfur derivatives, together with the extremely high flexibility of the thioether "arms" decorating the channels, account for a selective capture of gold(III) and gold(I) salts in the presence of other metal cations typically found in electronic wastes. The X-ray single-crystal structures of the different gold adsorbates Au^III@1 and Au^I@1 suggest that the selective metal capture occurs in a metal ion recognition process somehow mimicking what happens in biological systems and protein receptors. Both Au^III@1 and Au^I@1 display high activity as heterogeneous catalyst for the hydroalkoxylation of alkynes, further expanding the application of these novel hybrid materials.