Figure 2: AFM force spectroscopy and designed experimental configurations. | Nature Communications

Figure 2: AFM force spectroscopy and designed experimental configurations.

From: Direct measurement and modulation of single-molecule coordinative bonding forces in a transition metal complex

Figure 2

(a) Schematic illustration of measurement principles of the AFM force spectroscopy for the Os–terpy complex. The cantilever deflection is determined by the position of a reflected laser beam and translated into an interaction force transmitted via the samples. The ligand-functionalized tip approaches the sample and is brought to interact with the sample. (b) Schematic illustrations of four types of experimental configurations for measurements of force spectra: (I) absence of Os ions, (II) Os ions pre-bound to the Au(111) substrate, (III) Os ions pre-loaded on the AFM tip and (IV) Os ions pre-loaded on both the substrate and AFM tip.

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