A combined experimental and theoretical study on realizing and using laser controlled torsion of molecules
| Autor: | Madsen, C. B., Madsen, L. B., Viftrup, S. S., Johansson, M. P., Poulsen, T. B., Holmegaard, L., Kumarappan, V., Jorgensen, K. A., Stapelfeldt, H. |
|---|---|
| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | J. Chem. Phys. 130, 234310 (2009) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1063/1.3149789 |
| Popis: | It is demonstrated that strong laser pulses can introduce torsional motion in the axially chiral molecule 3,5-diflouro-3',5'-dibromo-biphenyl (DFDBrBPh). A nanosecond laser pulse spatially aligns the stereogenic carbon-carbon (C-C) bond axis allowing a perpendicularly polarized, intense femtosecond pulse to initiate torsional motion accompanied by a rotation about the fixed axis. We monitor the induced motion by femtosecond time-resolved Coulomb explosion imaging. Our theoretical analysis corroborates the experimental findings and on the basis of these results we discuss future applications of laser induced torsion, viz., time-resolved studies of de-racemization and laser controlled molecular junctions based on molecules with torsion. Comment: 10 pages, 9 figures, 2 tables; submitted to J. Chem. Phys. |
| Databáze: | arXiv |
| Externí odkaz: |
|