193904-47-1Relevant academic research and scientific papers
Organometallic C70 chemistry. Preparation and crystallographic studies of (η2-C70)Pd(PPh3)2·CH 2Cl2 and (C70)·2{(η5-C5H5) 2Fe}
Olmstead, Marilyn M.,Hao, Leijun,Balch, Alan L.
, p. 85 - 90 (1999)
Treatment of a solution of C70 with solutions of Pd(PPh3)4 or ferrocene result in the formation of either black-brown (η2-C70)Pd(PPh3)2·CH 2Cl2 or metallic-black C70·2{(η5-C5H5) 2Fe}, respectively. Crystallographic examination of the palladium complex reveals that the metal is coordinated to the a-b bond (a highly pyramidalized 6:6 ring junction) at the pole of the fullerene. The variable temperature 31P-NMR spectrum of the complex reveals the coalescence of the two doublets of the adduct at 80°C. This merging of the resonances results from a dynamic process that may involve rotation of the olefinic fullerene bond about the plane of the PdP2 unit or phosphine dissociation. X-ray crystallography of the ferrocene-containing compound, C70·2{(η5-C5H5) 2Fe}, reveals that it involves co-crystallization of two ordered ferrocene molecules with an ordered C70 molecule with no unusual interaction between these entities. The structure is similar in many aspects to that of C60·2{(η5-C5H5) 2Fe}.
