Abstract
(η2 ‒ C60)W(CO)5 was synthesized via the photoreaction of W(CO)6 with C60 in n-hexane using a mercury vapor lamp. The complex was characterized by elemental analysis, infrared spectroscopy in the stretching carbonyl region, and 13C-NMR spectroscopy. Three bands observed in the stretching carbonyl region at 2085 cm−1, 1996 cm−1 and 1976 cm−1 are consistent with three bands expected for the W(CO)5 fragment of the complex having C4, symmetry. A previous report that the sunlight photo-induced reaction of W(CO)6 with C60 in benzene produced (η6 ‒ C60)W(CO)3 prompted a reinvestigation of the sunlight photo-induced reaction.
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