Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 130, Issue 23, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3149789
Keywords
bonds (chemical); high-speed optical techniques; librational states; molecule-photon collisions; organic compounds
Funding
- Carlsberg Foundation
- The Lundbeck Foundation
- Danish Natural Research Foundation
- Danish Natural Science Research Council
- Danish Research Agency [217-05-0081]
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It is demonstrated that strong laser pulses can introduce torsional motion in the axially chiral molecule 3,5-difluoro-3',5'-dibromobiphenyl. 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 deracemization and laser controlled molecular junctions based on molecules with torsion.
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