Figure 10
Overlays (left) of the TPPO layer of the CHDTPPO structure at 90 K (as determined for a crystal grown from acetone) with the structure of the Pbca polymorph determined at 100 K (Brock et al., 1985) and (right) of the CHDTPPO structure at 294 K (also for a crystal grown from acetone) with the structure of the second monoclinic polymorph at room temperature (Spek, 1987). The upper drawings are related to the lower drawings by a rotation of 90° around the vertical axis. Labels for axes that are more than 1° out of the plane of the drawing are shown in parentheses. |