“…Experimentally, this would appear as a substantial increase in the intensity of D-band in the Raman spectra, as well as a decrease in the mobility compared to pristine graphene. In fact, a large increase in D-band intensity was indeed observed experimentally [6] upon formation of the Bz|M|Gr complexes, possibly indicating complex-formation at the defect sites. Sarkar et al [6,7] also reported a decrease in conductance upon complex formation for a related structure, Gr|M|(CO) 3 , that is isoelectronic to the sandwich structures of interest here.…”