Fig. 2: Cyclodehydrogenation promoted by atomic hydrogen at 220 °C on Au(111).
From: Cyclodehydrogenation of molecular nanographene precursors catalyzed by atomic hydrogen
a Large-scale STM image with 7-AGNRs (1). Blue arrows and circles/ovals indicate rarely observed incompletely planarized DBBA units, green circles mark single nanographenes formed through planarization of DBBA. b Filled state STM image of the 7-AGNR (1) with differently terminated zig-zag edges. High-resolution STM (c) and bond-resolved AFM (d) images of perfectly shaped 7-AGNR (1) with zig-zag termini indicated by red arrows. STM (e) and nc-AFM (f) images of 7-AGNR (1) with methylene (sp3 carbon) bridged end indicated by yellow arrows. g High-resolution STM image of nanographenes 2. Inset shows bond-resolved AFM image visualizing perfect shaping of 2. Tunneling current: 50 pA (a), 25 pA (b–g), bias voltage: -1 V. Source data are provided as a Source Data file.
