TERMIUM Plus®

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

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Record 1 1979-02-26

English

Subject field(s)
  • Mineralogy
  • Physics
  • Chemistry
CONT

A pseudo-potential treatment of ionic-covalent configuration interaction or curve-crossing is given which employs simple but asymptotically exact wave-functions and avoids introducing orbital approximations (...) The coupling of ionic and covalent states has a major role for many non-adiabatic energy transfer processes in photo-excitation, collision dynamics, and reaction kinetics. The favourite prototype examples involve electron transfer from an alkali atom to an acceptor atom or molecule (...)

French

Domaine(s)
  • Minéralogie
  • Physique
  • Chimie
CONT

Les chalcogénures lamellaires (...) de nombreux éléments de transition (...) peuvent se décrire sur la base d'une succession de feuillets bidimensionnels infinis (...), parallèles entre eux, et construits à partir de deux couches anioniques enserrant une couche cationique. Cette forme géométrique remarquable illustre un état particulier de liaison caractérisé par une très grande anisotropie: dans un feuillet les liaisons sont fortes, iono-covalentes, alors qu'entre feuillets successifs s'exercent des forces faibles (...)

OBS

Le CILF préfère la graphie en un seul mot sans trait d'union.

Spanish

Delete saved record 1

Record 2 2017-06-01

English

Subject field(s)
  • Occupation Names (General)
  • Cinematography

French

Domaine(s)
  • Désignations des emplois (Généralités)
  • Cinématographie

Spanish

Delete saved record 2

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