- 1.7
- 1.6
- 1.5
- Beta
- Examples (for 1.6a)
- Misc
Syntax:
n=nrepeatThe 'n' keyword, when placed in the bracketed parts of bound atom, ring, and chain descriptions requires that they are matched a number of times rather than just once.
For example:
Table 8.7. NETA keyword 'n' examples
| Command | Meaning |
|---|---|
| -C(n=4,-H(n=3)) | Describes the central carbon in neopentane (2,2-dimethylpropane) which is bound to four methyl groups |
| ring(size=4,n=3) | Specifies that the target atom should be present in three unique four-membered rings |
| chain(-C-C-C~N(bond=triple),n=4) | Requests that the atom has four cyanoethyl groups hanging off it |