Check Chemistry

The Chemistry Checker recognizes many types of problems with a structure including:Chemistry Checker

• Characters in a label which have no chemical meaning;

• Incorrect valence in connected bonds;

• Incorrect valence in atom labels.

 

To display suspected errors in a structure drawing, do one of the following:

• Choose Chemistry > Check Chemistry.

• Choose Check Chemistry from the Drawing Area pop-up menu.

• Press F10.

 

When a problem is found, the location of the suspected error is circled and a brief description of the problem appears:

• Click Ignore to ignore this error and proceed to the next.

• Click Ignore All to ignore this and all similar errors and proceed to the next.

• Click Learn to add this particular configuration to the list of chemistry exceptions and proceed to the next suspected error.

  • To unlearn the particular configuration, choose Chemistry > Unlearn User Chemistry.

• Click Cancel to close the Chemistry Checker.

 

• Note:  The color of circle is set on the Measurements tab of the Preferences Dialog Box; choose File > Preferences.  

 

See also:

Unlearn User Chemistry