- 1.7
- 1.6
- 1.5
- Beta
- Examples (for 1.6a)
- Misc
Indicates either that an atom must be present in an aromatic environment (e.g. in an aromatic ring), or that a ring should itself be aromatic.
For example:
Table 8.10. NETA keyword 'aromatic' examples
| Command | Meaning |
|---|---|
| ~N(aromatic) | Specifies a nitrogen connected by any bond which is present in an aromatic environment |
| -C(ring(aromatic)) | Single bond to a carbon atom which is in an aromatic ring |

