Abstract
Carbon NMR data obtained for the fullerene complexes Ru 3(CO) 9(μ 3-η 2, η 2, η 2-C 60) ( 1) and Ru 3(CO) 9(μ 3-η 2, η 2, η 2-C 70) ( 2) suggest the operation of fluxional processes. Triphenylphosphine-substituted derivatives of 1 and 2 have been prepared by heating the fullerene complex with PPh 3 in chlorobenzene at 130°C for a brief period. The individual mono- and disubstituted derivatives have been purified by thin-layer chromatography and identified by their infrared and FAB mass spectra, and their dynamic behavior has been probed by 31P- and 13C-NMR spectroscopy. Restricted three-fold rotations at each metal center are indicated for these derivatives.
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