Stone-Wales transformation,

Hawkins J M, Nambu M and Meyer A 1994 Resolution and configurational stability of the chiral fullerenes C-g, C g, and Cg. A limit for the activation energy of the Stone-Wales transformation J. Am. Chem. Soc. 116 7642-5... 

Figure 13 The interconversion of pairs of pentagonal and hexagonal rings through the thermally forbidden Stone-Wales transformation...

Figure 6.24. The potential energy surface of the Stone—Wales transformation before/after the addition of catalyzing moieties such as (a) carbon, and (b) hydrogen atoms. Reproduced with permission from (a) Eggen, B. R. Heggie, M. 1. Jungnickel, G. Latham, C. D. Jones, R. Briddon, R R- Science 1996, 272, 87, Copyright 1996 AAAS and (b) Nimlos, M. R. Filley, J. McKinnon, J. T. J. Phys. Chem. A 2005, 109, 9896. Copyright 2005 American Chemical Society.

Bettinger, H. R, Yakobson, B. L, Scuseria, G. E. (2003). Scratching the surface of Buckminster-fullerene The barriers for Stone-Wales transformation through symmetric and asymmetric transition states. Journal of the American Chemical Society, 125, 5572-5580. and references therein. 

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