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ChemOffice.Com - CambridgeSoft

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and in Chem3D. Editing either model changes the<br />

other automatically. This affords maximum editing<br />

flexibility.<br />

To turn off synchronized mode:<br />

• Click the Synch button at the top left of the<br />

ChemDraw panel. The button toggles<br />

synchronization on and off.<br />

To copy a model to Chem3D, click either the<br />

Add or Replace icon.<br />

Name=Struct<br />

The ChemDraw panel has a Name=Struct window<br />

that allows you to build models by entering a<br />

chemical name or SMILES string. You can also<br />

copy names or SMILES strings from other<br />

documents and paste them, either into the<br />

Name=Struct window, or directly into the<br />

Chem3D model window.<br />

TIP: You can also paste chemical formulas into the<br />

Chem3D model window. Be aware, however, that a formula<br />

may not represent a unique structure, and the results may not<br />

be correct.<br />

Building with Other 2D<br />

Programs<br />

You can use other 2D drawing packages, such as<br />

ISIS/Draw to create chemical structures and then<br />

copy them into Chem3D for automatic conversion<br />

to a 3D model.<br />

To build a model with 2D drawings:<br />

1. In the source program, copy the structure to<br />

the clipboard.<br />

2. In Chem3D, from the Edit menu, choose Paste.<br />

The 2D structure is converted to a 3D model.<br />

The standard measurements are applied to the<br />

structure. For more information see<br />

“Appendix E: 2D to 3D Conversion.”<br />

NOTE: You cannot paste from ISIS/Draw into the<br />

ChemDraw panel, only into the Chem3D model<br />

window. You can, however use the synchronize control<br />

to add the model to the ChemDraw panel.<br />

You can also cut-and-paste, or drag-and-drop,<br />

models to and from ChemDraw to Chem3D or the<br />

ChemDraw panel. See “Transferring to Other<br />

Applications” on page 123 for more information on<br />

pasting into other applications.<br />

Non-bond or atom objects copied to the clipboard<br />

(arrows, orbitals, curves) are ignored by Chem3D.<br />

Superatoms in ISIS/Draw are expanded if<br />

Chem3D finds a corresponding substructure. If a<br />

corresponding structure is not found, you must<br />

define a substructure. For more information see<br />

“Defining Substructures” on page 614.<br />

Building With the<br />

Bond Tools<br />

Use the bond tools to create the backbone structure<br />

of simple models. Bond tools always create bonds<br />

that terminate with carbon atoms. Hydrogens<br />

display automatically by default. You can hide them<br />

to reduce clutter. You can change the carbons or<br />

hydrogens to other elements after you create the<br />

generic model.<br />

To create a model using a Bond tool:<br />

1. Choose a bond tool. The Single Bond tool is<br />

used in this example.<br />

2. Point in the model window, and drag in the<br />

direction you want the bond to be oriented.<br />

3. Release the mouse button to complete the<br />

bond.<br />

<strong>ChemOffice</strong> 2005/Chem3D Building and Editing Models • 53<br />

Building With the Bond Tools

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