A traditional synthetic method, and a new structural motif, for molybdenum-gold clusters: synthesis and solid-state structure of Au8{Mo(CO)5}4(PPh3)4.
The neutral cluster [Au8Mo4(CO)20(PPh3)4] was synthesized in low yield from [AuCl(PPh3)] and [Mo2(CO)10]2- in acetonitrile at room temperature. The cluster was characterized by X-ray analysis, IR, and 31P NMR spectroscopy. Its solid-state structure consists of four Au(3)Mo tetrahedral units, fused by four Au atoms in a ring. The average bond lengths are Au-Au 2.77 Angstrom and Mo-Au 2.93 Angstrom. The internal angles of the planar square ring are very close to 90 degrees.
Della Pergola
Roberto
R
Dipartimento di Scienze dell' Ambiente e del Territorio, Università di Milano Bicocca, piazza della Scienza 1, 20126 Milano, Italy. roberto.dellapergola@unimib.it
Garlaschelli
Luigi
L
Malatesta
Maria Carlotta
MC
Manassero
Carlo
C
Manassero
Mario
M
D000097:Acetonitriles; D017612:Gold Compounds / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008968:Molecular Conformation; D008982:Molybdenum / Q000737:chemistry*
D000097:Acetonitriles; D017612:Gold Compounds; D008982:Molybdenum; C032159:acetonitrile