Fig. 2
Properties of TBrPP-Co/Au(111). a–c Three orientations of TBrPP-Co on Au(111) induced by STM manipulation labelled as 1, 2 and 3, respectively. The protrusion next to the molecule is used as a landmark (4.2 × 4.2 nm2, I t = 1 × 10−10 A, V t = −1.0 V). Green dots indicate where the Kondo effect is measured. d–f DFT adsorption structures of TBrPP-Co corresponding to 1, 2 and 3, (a–c), respectively. g A dI/dV–V spectroscopic data of TBrPP-Co on Au(111) showing HOMO–LUMO orbitals (tip set-point: I 0 = 5 × 10−11 A, V 0 = −1.0 V). h High-resolution dI/dV spectra of TBrPP-Co/Au(111) corresponding to three adsorption geometries, 1, 2 and 3, revealing a Kondo resonance (q = 0.37, 0.36 and 0.40 for 1, 2 and 3, respectively. Tip set-point: I 0 = 1.0 × 10−10 A, V 0 = −0.1 V. Spectra are vertically offset by 0.5 pA/mV for clarity)
