| Introduction |
This section gives an overview of the following for use in Explore Substances or Explore Reactions:
- Retrieval possibilities using substructure searching
- Structure drawing precision tools
- Structure evaluation tools
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| Definition |
Substructure searching refers to the capability to use a structure as a search term and locate chemical structures containing that structural skeleton.
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| Retrieval possibilities |
With substructure searching, you can retrieve structure matches such as:
- Exact matches, including stereoisomers, radiolabeled matches, and charged matches
- Matches of the structural skeleton, with substitution at open positions
- Matches of the structural skeleton, with the skeleton embedded within a larger ring system
- Closely related matches resulting from hydrogen migration and double-bond rearrangement, e.g., tautomers
- Closely related matches resulting from charge migration, e.g., zwitterions
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| Structure precision drawing tools |
Tools are available to control substructure retrieval. |
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When you want to control |
Use this tool |
| Substitution |
Lock Atoms tool  |
| Ring formation |
Lock Rings tool  |
| Characteristics, classes, or types of studies |
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A decision chart summarizes applications of these drawing tools.
Updated: 10/5/2009 9:37:54 AM
