Fig. 1: Electrosynthesis of buckyballs.
From: Electrosynthesis of buckyballs with fused-ring systems from PCBM and its analogue
a Electrosynthesis of buckyballs with fused bi- and tricycles 3, 4, and 5 from PCBM. b Electrosynthesis of buckyballs with fused bi- and tricycles 6 and 7 from PCPM. c Electrosynthesis of buckyball with fused bicycle 6 and bisfulleroid 8 from PCPM. d Electrochemical conversion of 7 to 8. All the redox potentials mentioned are relative to saturated calomel electrode. PCBM: 1, [6,6]-phenyl-C61-butyric acid methyl ester. PCPM: 2, [6,6]-phenyl-C61-propionic acid methyl ester. TFA: trifluoroacetic acid. The red color indicates the characteristic addition site for the fused ring system or the 14-membered-ring opening.
