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In CurlySMILES, antimatter atoms and nuclei are encoded by
presenting them in
atomic node code (ANC)
or square-bracket code (SQC)
notation followed
by the SSAM
annotation {an}. The following table shows
notations for antimatter atoms and nuclei that have been
observed in heavy ion collider experiments:
|
| antiproton |
[H+]{an} |
| antideuteron |
[2H+]{an} |
| antitriton |
[3H+]{an} |
| antihydrogen atom |
[H]{an} |
| antihelium-3 atom |
[3He]{an} |
| antihelium-4 atom |
[4He]{an} |
| antihelium-3 nucleus |
[3He+2]{an} |
| antihelium-4 nucleus
(anti-α)
|
[4He+2]{an} |
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Notice that {an} annotates the total
encoded structure, such that
anti-dihydrogen is encoded as
[H][H]{an}, using just one annotation at
the end of the SMILES notation.
Find or enter interesting antimatter links at
Materials Matter! For example,
check out
antihelium-3
and
antihelium-4.
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