Pf. Henry et al., (NH3)(6)NA3C60 - ROOM-TEMPERATURE SYNTHESIS OF A BODY-CENTERED-CUBIC C-60(3-) COMPOUND, Journal of the Chemical Society, Chemical Communications, (20), 1995, pp. 2131-2132
Reaction of face-centred cubic Na3C60 with ammonia at room temperature
affords body-centred cubic (NH3)(6)Na3C60 in which both octahedral an
d tetrahedral interstices in the fulleride array are occupied: despite
the similarity in C-60(3-) packing to Cs3C60, no superconductivity is
observed above 6 K.