Fig. 5
From: High-resolution tip-enhanced Raman scattering probes sub-molecular density changes
Normal modes and TERS images of porphycene tautomers. Normal modes a at 1256 cm−1 and b at 1252 cm−1 make the dominant contributions to the TERS images at ~1250 cm−1 of c trans and d cis tautomers adsorbed on a Cu(110) surface, respectively
