title: Polynuclear Gold [Au(I) ]4 , [Au(I) ]8 , and Bimetallic [Au(I) 4 Ag(I) ] Complexes: C-H Functionalization of Carbonyl Compounds and Homogeneous Carbonylation of Amines.
abstract: The synthesis of tetranuclear gold complexes, a structurally unprecedented octanuclear complex with a planar [Au(I) 8 ] core, and pentanuclear [Au(I) 4 M(I) ] (M=Cu, Ag) complexes is presented. The linear [Au(I) 4 ] complex undergoes C-H functionalization of carbonyl compounds under mild reaction conditions. In addition, [Au(I) 4 Ag(I) ] catalyzes the carbonylation of primary amines to form ureas under homogeneous conditions with efficiencies higher than those achieved by gold nanoparticles.
authors.affiliation: Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.
authors.forename: Ekaterina S
authors.identifier: 0000-0001-7544-0850
authors.initials: ES
authors.lastname: Smirnova
authors.affiliation: Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.
authors.forename: José M
authors.identifier: 0000-0002-7458-1472
authors.initials: JM
authors.lastname: Muñoz Molina
authors.affiliation: Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.
authors.forename: Alice
authors.identifier: 0000-0001-7676-2464
authors.initials: A
authors.lastname: Johnson
authors.affiliation: Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.
authors.forename: Nuno A G
authors.identifier: 0000-0002-5754-7328
authors.initials: NA
authors.lastname: Bandeira
authors.affiliation: Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.|Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, 43007, Tarragona, Spain.
authors.forename: Carles
authors.identifier: 0000-0001-9581-2922
authors.initials: C
authors.lastname: Bo
authors.affiliation: Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain. aechavarren@iciq.es.|Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, 43007, Tarragona, Spain. aechavarren@iciq.es.
authors.forename: Antonio M
authors.identifier: 0000-0001-6808-3007
authors.initials: AM
authors.lastname: Echavarren
keywords: carbonylation; gold; heterometallic complexes; homogeneous catalysis; structure elucidation