Probing chirality fluctuations in molecules by nonlinear optical spectroscopy.

  title={Probing chirality fluctuations in molecules by nonlinear optical spectroscopy.},
  author={Niklas Mann and Peter Nalbach and Shaul Mukamel and Michael Thorwart},
  journal={The Journal of chemical physics},
  volume={141 23},
Symmetry breaking caused by geometric fluctuations can enable processes that are otherwise forbidden. An example is a perylene bisimide dyad whose dipole moments are perpendicular to each other. Förster-type energy transfer is thus forbidden at the equilibrium geometry since the dipolar coupling vanishes. Yet, fluctuations of the geometric arrangement have been shown to induce finite energy transfer that depends on the dipole variance, rather than the mean. We demonstrate an analogous effect… 
4 Citations

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