FIGURE 3. Following two full turns by CD spectroscopy.
From the following article:
Unidirectional molecular motor on a gold surface
Richard A. van Delden, Matthijs K. J. ter Wiel, Michael M. Pollard, Javier Vicario, Nagatoshi Koumura and Ben L. Feringa
Nature 437, 1337-1340 (27 October 2005)
doi:10.1038/nature04127

Schematic representation of the unidirectional rotation of 1 (as viewed along the rotation axis) and two full four-stage 360° rotary cycles followed by CD spectroscopy. The change in CD intensity (mdeg) at 290 nm (solid line) and 320 nm (dashed) at each photochemical (h
>280 nm and h
= 365 nm) and thermal (
353K) isomerization step is shown.
