Fusing Pentagons in a Fullerene Cage by Chlorination: IPR D_2-C_(76) Rearranges into non-IPR C_(76)Cl_(24)

摘要

As is well known, fullerenes obtained by conventional arc-discharge synthesis obey the isolated pentagon rule (IPR). Unless fullerene molecules are directly subjected to "fullerene surgery", exohedral functionalization does not affect the connectivity of their carbon networks. Non-IPR fullerene isomers have been available through appropriate modifications of the arc-discharge methodology to synthesize an already chemically derivatized molecule in which the deriva-tization stabilizes the pentagon-pentagon junctions.