User guide

Drawing the Newman projection
In this step, you draw the hollow circle that is particular to Newman projections.
1. Click the Orbital tool, and select the s (Open) orbital.
2. Point to the left center carbon and click-drag outward.
The size of the orbital is constrained just as bonds are. The constraint is based on a percentage of the Fixed Length
setting in the Drawing tab of the Document settings dialog box.
Note: Orbitals are not automatically grouped with the structure. To group the orbital with the existing structure so
you can move them together, go to Object>Group.
1. Click the Marquee tool. The orbital is selected. Click an empty space to deselect it.
2. Point above the structure and drag around the upper fragment to select the three bonds. Do not select the bond con-
necting the two fragments.
Rotate the selection:
1. Double-click the rotation handle to open the Rotate Objects dialog box.
2. Type 180 in the Angle text box and click Rotate.
With the rotated bonds still selected, change the structure layering so that the selection is in front.
3. Go to Object>Bring to Front (there is no visible change when you do this).
Move the front part of the structure to create a Newman projection:
1. Point within the Selection Rectangle so the pointer changes to a hand.
2. Drag the selection until the tertiary carbon is centered within the orbital:
ChemBioDraw 13.0
Chapter 6: Tutorials 89 of 401