Investigation of electric field effects on C20 in single molecule experiments

The effect of electric field on single molecule of C-20 in a standing wave laser field is studied. Quantum chemical computations were performed to calculate several properties of C-20. The current study shows that the electric field changes the moments of inertia, bond lengths, dipole moment, force constants, vibrational frequencies, and orientation of C-20. These results confirm that in single molecule experiments the interaction between the molecule and the probing system cannot be neglected. (c) 2007 Elsevier B.V. All rights reserved.