Figure 6
One sheet parallel to (100) of interacting CH2I2 molecules in the Fmm2 phase II, with two columns of the molecules along [001] being parallel (a). A hypothetical structure with the columns antiparallel, but the iodine atomic positions retained, is presented in (b). The major and minor radii of the I atoms, also corresponding to the negative and positive electrostatic potential on the molecular surface, have been indicated in red and blue, respectively (cf. Fig. 7). The molecular and van der Waals dimensions have been represented to scale. |