FULLERIDE COMPOUNDS OF THE TRANSITION-METALS - NACOC60-CENTER-DOT-3THF

The fullerene compound C-60, which exhibits a rather high electron aff inity, undergoes an electron transfer reaction with the low-valent cob alt(-I) complex Na[Co(CO)(4)] to form the black compound NaCoC60. 3THF . The new material is characterized by elemental analyses, by IR, Rama n, C-13 MAS-NMR and EPR spectroscopy, and by magnetic susceptibility m easurements. It appears to contain covalent C-60-transition metal inte ractions, and therefore constitutes a new type of bimetallic fulleride compound. (C) 1997 Elsevier Science S.A.