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Published on: March 23, 2021
Alignment and Imaging of the CS_{2} Dimer Inside Helium Nanodroplets
James D Pickering1, Benjamin Shepperson1, Bjarke A K Hübschmann1
1Department of Chemistry, Aarhus Univeristy, Langelandsgade 140, 8000 Aarhus C, Denmark.
Abstract:
The carbon disulphide (CS_{2}) dimer is formed inside He nanodroplets and identified using fs laser-induced Coulomb explosion, by observing the CS_{2}^{+} ion recoil velocity. It is then shown that a 160 ps moderately intense laser pulse can align the dimer in advantageous spatial orientations which allow us to determine the cross-shaped structure of the dimer by analysis of the correlations between the emission angles of the nascent CS_{2}^{+} and S^{+} ions, following the explosion process. Our method will enable fs time-resolved structural imaging of weakly bound molecular complexes during conformational isomerization, including formation of exciplexes.
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