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Administrator<br />

The following table describes the Model Build<br />

controls<br />

Control<br />

Correct Atom<br />

Types<br />

Rectify<br />

Description<br />

Determines whether atom types<br />

are assigned to each atom as you<br />

build. Atom types, such as “C<br />

Alkane” specify the valence,<br />

bond lengths, bond angles, and<br />

geometry for the atom.<br />

Determines whether the open<br />

valences for an atom are filled,<br />

usually with hydrogen atoms.<br />

NOTE: For more information about atom types, standard<br />

measurements, and rectification, see “Model Building<br />

Basics” on page 20.<br />

Building with the<br />

ChemDraw Panel<br />

Chem3D 9 makes it easier than ever to create or<br />

edit models in ChemDraw. The ChemDraw panel<br />

is activated from the View menu. Using ActiveX<br />

technology, it puts the functionality of ChemDraw<br />

Pro at your fingertips.<br />

To add a new structure to Chem3D:<br />

Apply Standard<br />

Measurements<br />

Fit Model to<br />

Window<br />

Detect<br />

Conjugated<br />

System<br />

Bond Proximate<br />

Addition (%)<br />

Determines whether the<br />

standard measurements<br />

associated with an atom type are<br />

applied as you build.<br />

Determines whether the entire<br />

model is resized and centered in<br />

the model window after a<br />

change to the model is made.<br />

When selected, all bonds in a<br />

conjugated system are set at a<br />

bond order of 1.5. When<br />

unselected, bonds are displayed<br />

as drawn. Does not affect<br />

previously drawn structures.<br />

Determines whether a bond is<br />

created between a selection of<br />

atoms. For more information<br />

see “Creating Bonds by Bond<br />

Proximate Addition” on page<br />

62.<br />

1. Open the ChemDraw Panel by selecting it from<br />

the View menu.<br />

The ChemDraw panel appears on the right of<br />

the model window.<br />

2. Click in the panel to activate it.<br />

The Tools palette appears.<br />

TIP: If you don’t see the Tools palette, right-click in<br />

the ChemDraw panel, and check the View menu to see<br />

that it has been activated. There should be a check<br />

mark next to Show Main Tools. While you are at it,<br />

you might want to activate other toolbars. Activating the<br />

General tools toolbar, for example, will give you access<br />

to undo/redo commands.<br />

3. Build the structure.<br />

The model appears simultaneously in both the<br />

ChemDraw and Chem3D model windows.<br />

Unsynchronized Mode<br />

By default, the ChemDraw panel works in<br />

synchronized mode. In this mode, your model<br />

appears simultaneously in the ChemDraw panel<br />

52 •Building and Editing Models <strong>CambridgeSoft</strong><br />

Building with the ChemDraw Panel

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