TERMIUM Plus®

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

TWIST FORM [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 1997-03-25

English

Subject field(s)
  • Chemistry
OBS

Whereas many fully unsaturated rings are very nearly planar, their saturated or partially saturated analogs, containing tetrahedrally coordinated atoms, are necessarily three-dimensional. This frequently gives rise to a preferred orientation of the atoms in a molecule, differing from other possible orientations (conformers) by rotation about single bonds. Thus, cyclohexane exists predominantly in the chair form, although boat and twist forms of cyclohexanes are also known.

French

Domaine(s)
  • Chimie
DEF

[...] conformation intermédiaire, de symétrie D2, franchie durant l'interconversion de deux formes bateau du cyclohexane [...]

OBS

Dès 1890, H. Sachse avait remarqué qu'un cycle carboné de six éléments pouvait être construit en dehors de toute tension angulaire soit sous une forme flexible, soit sous une forme rigide ou forme chaise. Parmi l'infinité de conformations flexibles existent deux formes caractéristiques; une forme dite bateau et une forme dite croisée.

Spanish

Campo(s) temático(s)
  • Química
Save record 1

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2024
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau

Display options

Change the order of display of the official languages of Canada
Option to display the non-official languages (Spanish or Portuguese)
Display definitions, contexts, etc., on records

Features

Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: