Fig. 3. Typical STM observations of IMe on Ag(111) with the Ag [1̄10] symmetry direction indicated. (a) Overview image of a saturation coverage of IMe following deposition at room temperature (T_STM ∼ 125 K, U_s = −1.17 V, I_t = 0.09 nA). (b) Zoom-in (T_STM ∼ 125 K, U_s = −1.58 V, I_t = 0.08 nA) overlaid with the unit cell of the overlayer structure (blue solid lines) and the proposed model (C, N, H and Ag atoms in bis-carbene complexes are represented by black, blue, white and grey spheres, respectively).