Fig. 2: On-surface synthesis and structural characterization of diradicals D1-D3 and triradical T.
From: Orbital-symmetry effects on magnetic exchange in open-shell nanographenes
a Synthetic route towards D1-D3 and T through stepwise annealing and tip-induced dehydrogenation. b Overview STM image (V = 300 mV, I = 50 pA) after annealing precursor 1 on Au(111), revealing individual molecules. c Zoom-in STM image (V = 300 mV, I = 100 pA) and corresponding bond-resolved AFM image of T. d Zoom-in STM images (V = 300 mV, I = 100 pA) and the bond-resolved AFM images of D1-D3. Scale bars : 10 nm in (b), 1 nm in others.
