Fig. 3: Electrophilic mechanisms.
From: The continuum of carbon–hydrogen (C–H) activation mechanisms and terminology

A Three most common transition states are found in electrophilic C-H activation. B Simplified depiction of the AMLA(6)/CMD mechanism. C DFT calculated mechanism for the C-H activation of methane at (NHC)2Pd(II) via the AMLA(6)/CMD transition state.