Labeling Atoms with the Text Tool

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The default format options of any new atom labels you create are specified in the Atom Labels tab of the Document Settings dialog box. You may edit these options at any time. The settings affect the current document only.

To place an atom label on an atom:

1. Click the Text tool .

2. Point to an atom.

The pointer changes when it is positioned correctly over an atom to indicate that you will create an atom label rather than a caption.

3. Click the atom.

An Atom Label text box appears over the atom.

4. Type an atom label.

Numbers are automatically subscripted. The justification you choose determines how the letters in an atom label are positioned on a bond. Numbers, leading open parentheses, and trailing closed parentheses are ignored in the positioning of atom labels.

5. To close the text box, click outside the text box or select another tool.

NOTE: You can use HotKeys to label an atom instead of using the Text tool. You can also label atoms using Nicknames that are text representations of substructures. For more information, see "Labeling Atoms with HotKeys" and "Using Nicknames".