Fig. 2: Products formed after thermal annealing of DMTPB on Au(111) at 590 K.
From: Real-space imaging of a phenyl group migration reaction on metal surfaces
a STM topographies of linear self-assembly of DMTPB on Au(111). b Large-scale STM topography (CO tip, I = 50 pA, Vs = 100 mV) after thermal annealing at 590 K. c–g Constant current STM topographies (CO tip, I = 50 pA, Vs = 100 mV) of the products A1, A2, A3, A4, and A5, respectively, as denoted in (b) with dashed yellow circles. h–l Constant height BR-STM images (CO tip, Vs = 2 mV) of the products corresponding to (c–g), respectively. m–q The identified molecular structures of five monomer products corresponding to A1, A2, A3, A4, and A5 in panels h–l. Shaded rings with two different colors mark the four phenyl groups and the central benzene in the precursor. Scale bar: a 1 nm; b 7 nm; c–l 0.5 nm.
