Selective Gold Recovery and Catalysis in a Highly Flexible Methionine-Decorated Metal-Organic Framework.
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.
Departament de Química Inorgànica, Instituto de Ciencia Molecular (ICMOL), Universitat de València , 46980 Paterna, València, Spain.
Marta
M
Mon
Departament de Química Inorgànica, Instituto de Ciencia Molecular (ICMOL), Universitat de València , 46980 Paterna, València, Spain.
Jesús
J
Ferrando-Soria
Departament de Química Inorgànica, Instituto de Ciencia Molecular (ICMOL), Universitat de València , 46980 Paterna, València, Spain.
Thais
T
Grancha
Departament de Química Inorgànica, Instituto de Ciencia Molecular (ICMOL), Universitat de València , 46980 Paterna, València, Spain.
Francisco R
FR
Fortea-Pérez
Catalysis Engineering Department, Delft University of Technology , Julianalaan 136, 2628 BL Delft, The Netherlands.
Jorge
J
Gascon
Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas , Avda. de los Naranjos s/n, 46022 Valencia, Spain.
Antonio
A
Leyva-Pérez
Dipartimento di Chimica e Tecnologie Chimiche (CTC), Università della Calabria , Rende 87036, Cosenza, Italy.
Donatella
D
Armentano
Departament de Química Inorgànica, Instituto de Ciencia Molecular (ICMOL), Universitat de València , 46980 Paterna, València, Spain.
Emilio
E
Pardo