ChemDraw User's Manual - CambridgeSoft

.Administrator8. Click the Object menu and make sure there is acheck mark next to the Fixed Lengths and FixedAngles commands. If either command is notchecked, select it.NOTE: The angle used when clicking to add bonds iscontrolled by the Chain Angle setting in the DrawingSettings dialog box in the File menu. If this bond anglecannot be established, the next smaller and logical bondangle is used.Add a third bond:1. Continue pointing to the atom shown below.NOTE: Applying fixed lengths and fixed angles enablesyou to create structures with consistent bond lengths andangles. The fixed length dimension is set in the DrawingSettings dialog box. The fixed angle dimension incrementsangles by 15 degrees.Create a bond:1. Click the Solid Bond tool .2. Position the pointer (+) anywhere in thedocument window and click.The bond is extended to its fixed length at a30-degree angle.2. Click the atom to add a bond.Change a single bond into a double bond:1. Point to the atom shown below and hold themouse button down.2. Drag as shown below over the existing singlebond. Release the mouse button.Add a second bond:1. Point to the right atom of the bond.Add labels to the structure:1. Point to the atom shown below.2. Click the atom to add a bond.A second bond is drawn, forming a 120-degreeangle between the bonds.32•TutorialsCambridgeSoftTutorial 1: Reaction Schemes