Torsion Explorer Applet

After drawing a chemical structure, selecting the lasso tool and moving the mouse pointer over any rotatable bond, then a torsion angle histogram is displayed, which shows all torsion angles of similar bond environments from x-ray structures of the Cambridge Structural Database (CSD). A dynamic Newman projection is updated, when the mouse pointer moves over the histogram. This applet allows a fast conformational analysis of chemical structures based on reliable x-ray data.

More advanced tools to explore 3D-conformations are found on the CCDC product page.