User guide

For example, you can explicitly draw the three isomers of dibromobenzene as shown below. Alternately, you can
express all three isomers as a single parent structure by using a variable attachment as shown below.
Abbreviated nota-
tion for:
Figure 7.5: Isomers of dibromobenzene
To add a variable attachment point to a structure:
1. Select all or part of the structure.
2. Go to Structure>Add Variable Attachment.
3. Point to the asterisk in the structure and drag to draw a bond.
Note: Either disable or toggle Fixed Lengths to draw the bond so that it extends from the ring.
Tip: If fixed lengths is enabled, press ALT as you drag the bond.
ChemBioDraw 13.0
Chapter 7: Advanced drawing techniques 100 of 401