cation-π
nounEtymology From cation + translingual π, where π is from π system. Aromatic residues are called π systems because they contain a lot of π links, links between p electrons.
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Chemistry, Natural sciences, Organic chemistry, Physical sciences Physical A noncovalent interaction between a cation, a positive ion like Li⁺ or Na⁺, and an aromatic residue such as benzene, ethylene, acetylene.
- Synonyms
- cation-pi