Sidewall functionalization of single-walled carbon nanotubes through electrophilic additionElectronic supplementary information (ESI) available: Fig. S1: TEM views of functionalized nanotubes 1. Fig. S2: 1H NMR spectrum of functionalized SWNTs 2 material. See http://www.rsc.org/suppdata/cc/b2/b204366a/

Electrophilic addition of chloroform to SWNTs followed by hydrolysis resulted in the addition of hydroxy groups to the surface of the nanotubes; further esterification with propionyl chloride led to the corresponding ester derivatives, which allowed us to identify their structure, also providing better solubility in organic solvents.