(a) t = 0 fs
(b) t = 700 fs
(c) t = 711 fs
(d) t = 721 fs
Figure 2: Snapshots taken from the simulation of synchronous cycloaddition mode of stacked benzene and ethylene molecules at (a) 0, (b) 700, (c) 711, and (d) 721 fs. The benzene molecule is subjected to the irradiation of a 25 fs (fwhm) laser pulse with a fluence of 96.93 Jm−2 and photon energy of 4.7 eV.