TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

PI-COMPLEX [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2013-08-30

English

Subject field(s)
  • Chemistry
  • Electrochemistry
DEF

An adduct formed by electron-pair donation from a pi-orbital into a sigma-orbital, or from a sigma-orbital into a pi-orbital, or from a pi-orbital into a pi-orbital.

OBS

The word "pi" must be replaced by the corresponding Greek letter.

Key term(s)
  • π-adduct

French

Domaine(s)
  • Chimie
  • Électrochimie
DEF

Adduit formé entre un donneur d'une paire d'électrons et un accepteur; tel que les couples des orbitales du donneur et de l'accepteur sont respectivement pi, sigma, sigma-pi, ou pi-pi.

OBS

Un tel adduit est connu sous le nom de «complexe-pi», mais, puisque la liaison n'est pas nécessairement faible, il est préférable d'éviter le terme complexe.

OBS

Les mots «pi» et «sigma» doivent être remplacés par les lettres grecques correspondantes.

Spanish

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