Ls. Litvinova et Vn. Zgonnik, THIN-LAYER CHROMATOGRAPHY OF C-60 AND C-70 FULLERENES, JPC. Journal of planar chromatography, modern TLC, 10(1), 1997, pp. 38-43
It is shown that under TLC conditions a mixture of C-60 and C-70 fulle
renes is separated on NH2, RP18, and diol plates and on neutral and ba
sic alumina by use of such eluents as hexane and i-octane and their mi
xtures with xylene or 1,2-dichlorobenzene. Chamber saturation has a ne
gative influence on the separation. The separation of C-60 and C-70 fu
llerenes on silica gel, however, is achieved by developing the plate w
ith hexane containing 5% pyridine in a saturated chamber. The quantity
of substance in the starting spot should not exceed 0-5 mu g. The chr
omatographic behavior is compared with that of benzo[a]pyrene, as both
have similar 'molecular footprints'. The mechanism of retention of C-
60 and C-70 fullerenes and the nonplanarity effect are discussed.