The 1,3 dipolar cycloaddition of azomethine ylides to graphene, single wall carbon nanotubes, and C60

摘要

Herein, we perform a comparative study on the addition of azomethine ylides to graphene, carbon nanotubes, C_(60), ethene, pyrene and a C _(48)H_(18) hydrocarbon. The calculated binding energies and free energy corrections suggest that the addition of azomethine ylide to perfect graphene is not spontaneous (ΔG > 0). However, the presence of Stones-Wales defects significantly increases reactivity: the binding energy between SW-defective graphene and the azomethine ylide is 0.83 eV, close to that determined for a (5,5) SWCNT. The electronic properties of the sheet are not modified by the 1,3 cycloaddition. The binding energies determined for the addition of an azomethine ylide to a (5,5) SWCNT are significantly lower than previously reported.