The gold(I) precursor Au(O2CNEt2)(PPh3) has been successfully employed to graft isolated Au(PPh3) fragments on amorphous silica. Molecular models of the silica surface, i.e. Ph3SiOH, (c-C5H9)7Si7O12SiOH and (c-C5H9)7Si7O9(OH)3, have been found to react with Au(O2CNR2)(PPh3), R = Me, Et, yielding the corresponding silanolato molecular complexes containing the SiO–Au(PPh3) moiety. Gold nanoparticles on silica have been produced by using AuCl(CO) as precursor.

Gold molecular complexes for gold-silica interactions

BELLI, DANIELA;CALDERAZZO, FAUSTO;
2001

Abstract

The gold(I) precursor Au(O2CNEt2)(PPh3) has been successfully employed to graft isolated Au(PPh3) fragments on amorphous silica. Molecular models of the silica surface, i.e. Ph3SiOH, (c-C5H9)7Si7O12SiOH and (c-C5H9)7Si7O9(OH)3, have been found to react with Au(O2CNR2)(PPh3), R = Me, Et, yielding the corresponding silanolato molecular complexes containing the SiO–Au(PPh3) moiety. Gold nanoparticles on silica have been produced by using AuCl(CO) as precursor.
Abis, L; Belli, Daniela; Busetto, C; Calderazzo, Fausto; Caminiti, R; Garbassi, F; Tomei, A.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/187363
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