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

Autor:	Mon M; Departament de Química Inorgànica, Instituto de Ciencia Molecular (ICMOL), Universitat de València , 46980 Paterna, València, Spain., Ferrando-Soria J; Departament de Química Inorgànica, Instituto de Ciencia Molecular (ICMOL), Universitat de València , 46980 Paterna, València, Spain., Grancha T; Departament de Química Inorgànica, Instituto de Ciencia Molecular (ICMOL), Universitat de València , 46980 Paterna, València, Spain., Fortea-Pérez FR; Departament de Química Inorgànica, Instituto de Ciencia Molecular (ICMOL), Universitat de València , 46980 Paterna, València, Spain., Gascon J; Catalysis Engineering Department, Delft University of Technology , Julianalaan 136, 2628 BL Delft, The Netherlands., Leyva-Pérez A; Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas , Avda. de los Naranjos s/n, 46022 Valencia, Spain., Armentano D; Dipartimento di Chimica e Tecnologie Chimiche (CTC), Università della Calabria , Rende 87036, Cosenza, Italy., Pardo E; Departament de Química Inorgànica, Instituto de Ciencia Molecular (ICMOL), Universitat de València , 46980 Paterna, València, Spain.
Jazyk:	angličtina
Zdroj:	Journal of the American Chemical Society [J Am Chem Soc] 2016 Jun 29; Vol. 138 (25), pp. 7864-7. Date of Electronic Publication: 2016 Jun 16.
DOI:	10.1021/jacs.6b04635
Abstrakt:	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.
Databáze:	MEDLINE
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