Fig. 2: Six-membered TPE macrocycles (M6) formed on Ag(111).
From: On-surface synthesis and spontaneous segregation of conjugated tetraphenylethylene macrocycles
a Large-scale STM image (200 nm × 100 nm; −1.5 V, 20 pA) of the 2D crystalline monolayer made of six-membered macrocycles (M6). Inset: FFT pattern. b Zoom in STM image (−1.0 V, 100 pA) of the M6 2D crystal. The blue rhomb denotes the unit cell. The edge (white arrow) and the inner diameter (yellow arrow) of the hexagon are 0.98 ± 0.04 nm and 1.69 ± 0.03 nm, respectively. Dashed black circles highlight inclusion of TPE monomers in the macrocycle cavities. c, d High-resolution STM image (0.2 V, 100 pA) and chemical model of M6. Scale bar: 1 nm. e Schematic model of the M6 2D crystal.
