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. 2016 Sep 13;7:12711. doi: 10.1038/ncomms12711

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Copyright © 2016, The Author(s)

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(a) Large-scale STM topography of tDBA as deposited on Cu(111) at 150 K. Inset shows the close view of the single molecule. (b) Corresponding AFM image, measured at a constant height. (c) Corrugation image, extracted via the three-dimensional frequency shift landscape. (d) Proposed chemical structure of the first product. Measurement parameters: V_tip=−200 mV and I=2 pA in a and V_tip=−200 mV and I=1 pA in (inset). V_tip=0 mV and A=60 pm in b,c. Scale bar, 4 nm in a. White, blue and yellow scale bars, 300 pm, 600 pm and 520 pm in b,c.