Chem(seprate of c60 and graphite)
Suggest and explain how you would differentiate two samples of
black powder, one of c60 and the other of graphite by a physical method
- 1 decade agoFavorite Answer
By checking their electrical conductivity
C60 is a poor conductor of electricity
Because (1) carbon atoms in C60 are sp2 hybridised
unhybridised pz orbital can overlap with other carbon atoms in the same C60
However, sp2 hybridisation requires a planar arrangement
∴ the delocalisation in C60 is poor.
(2) the force between C60 is Van der Waal's force.
∴ no/ very poor delocalisation between the C60.
While graphite is a good conductor of electricity
Because of the delocalisation of pi electrons within a layer.
By mass spectrometry
C60 : a very sharp peak at 720 m/e
graphite : a very sharp peak at 12 m/e only
no peak at 720 m/eSource(s): myself