cation-π

短语

释义与例句

n.
  1. 1.

    A noncovalent interaction between a cation, a positive ion like Li⁺ or Na⁺, and an aromatic residue such as benzene, ethylene, acetylene.

    不可数 化学

词源

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.

来源：wiktionary