Inelastic resonances in the electron tunneling spectra of several conjugated molecules are simulated using thenonequilibrium Greens function formalism. The vibrational modes that strongly couple to the electronic currentare different from the infrared and Raman active modes. Spatially resolved inelastic electron tunneling (IET)intensities are predicted. The simulated IET intensities for a large distyrylbenzene paracyclophane moleculeare in qualitative agreement with recent experimental results.
