Fig. 6: Lateral [2 + 2] cycloaddition of C60-BCPM.
From: Extending on-surface synthesis from 2D to 3D by cycloaddition with C60
a Large-scale (Vs = –1250 mV, It = –0.26 nA) and (b), close-view (Vs = −1250 mV, It = −0.29 nA) STM images showing the hexamer rings (HRs) after annealing C60-BCPM on Au(111) at 490 K for 30 min. c High-resolution STM of an individual HR. d Linescans along the blue and green arrows in (b), showing the size of the HR compared with the periodicity of C60-BCPM in D1. e Top and side views of the DFT-optimized structure of an HR on Au(111), where the six C60-BCPM molecules are covalently bonded via [2 + 2] cycloaddition. f Calculated STM image of an HR, showing consistent morphology as observed experimentally.
