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

Marta Mon, Jesús Ferrando-Soria, Thais Grancha, Francisco R. Fortea-Pérez, J. Gascon, Antonio Leyva-Pérez, Donatella Armentano, Emilio Pardo

Research output: Contribution to journalArticleScientificpeer-review

90 Citations (Scopus)

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 AuIII@1 and AuI@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 AuIII@1 and AuI@1 display high activity as heterogeneous catalyst for the hydroalkoxylation of alkynes, further expanding the application of these novel hybrid materials.

Original languageEnglish
Pages (from-to)7864-7867
Number of pages4
JournalJournal of the American Chemical Society
Volume138
Issue number25
DOIs
Publication statusPublished - 2016

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