TERMIUM Plus®

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GUEST MOLECULE [1 record]

Record 1 2011-08-09

English

Subject field(s)
  • Chemistry
CONT

clathrates: Cage structures formed by H2O ice having 8 cavities for each 46 water molecules that can trap large "guest" molecules of nonpolar volatile gases.

CONT

gas hydrate: A special form of solid clathrate compound in which crystal lattice cages or chambers, consisting of host molecules, enclose guest molecules. ... Gas hydrates are formed under special temperature and pressure conditions. The host molecules are water, and the guest molecules may be a variety of gases, including argon, nitrogen, carbon dioxide, hydrogen sulfide, methane, ethane, halogens and other small molecules.

OBS

As opposed to "host molecule."

French

Domaine(s)
  • Chimie
DEF

Molécule logée dans les cavités d'une autre molécule dite «molécule hôte».

CONT

Complexe d'inclusion. Un complexe d'inclusion est une association moléculaire entre une ou plusieurs molécules dont l'une est l'hôte (le récepteur) et l'autre l'invitée (le substrat). La molécule «invitée» est alors encapsulée de façon totale ou partielle dans le récepteur. Les liens entre la molécule hôte et la molécule invitée sont des interactions faibles, ce qui permet une dissociation aisée et douce.

OBS

molécule incluse : terme et définition publiés au Journal officiel de la République française le 18 avril 2001.

Spanish

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