“…However, because of the computational demands by the 42-electron CF 4 target, only one representative orientation will be considered in this preliminary study. Thanks to the almost spherical symmetry of CF 4 [8], the initial orientations of this target should not strongly affect the scattering results [8]. The selected orientation has the carbon atom C at the center of the coordinates ͑0.0, 0.0, 0.0͒ and the four fluorine atoms F(1), F(2), F(3), and F(4) at the points ͑ϩa,ϩa,ϩa͒, ͑Ϫa,Ϫa,ϩa͒, ͑Ϫa,ϩa,Ϫa͒, ͑ϩa,Ϫa,Ϫa͒, respectively, where a ϭ 1.443356 a.u.…”