- electron deficient compounds
- Макаров: электронодефицитные соединения
Универсальный англо-русский словарь. Академик.ру. 2011.
electron deficient compounds
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Electron counting — is a formalism used for classifying compounds and for explaining or predicting electronic structure and bonding. Many rules in chemistry rely on electron counting:*Octet rule for main group elements, especially the lighter ones such as carbon,… … Wikipedia
Electron deficiency — occurs when a compound has too few valence electrons for the connections between atoms to be described as covalent bonds. Electron deficient bonds are often better described as 3 center 2 electron bonds. Examples of compounds that are electron… … Wikipedia
Three-center four-electron bond — The 3 center 4 electron bond is a model used to explain bonding in hypervalent molecules such as phosphorus pentafluoride, sulfur hexafluoride, the xenon fluorides, and the hydrogen difluoride ion. [Greenwood Earnshaw p. 897.] [Weinhold, F.;… … Wikipedia
Three-center two-electron bond — A three center two electron bond is an electron deficient chemical bond where three atoms share two electrons. The combination of three atomic orbitals form three molecular orbitals: one bonding, one non bonding, and one anti bonding. The two… … Wikipedia
chemical bonding — ▪ chemistry Introduction any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another … Universalium
Chemical bond — A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electromagnetic force attraction between opposite charges, either between electrons and… … Wikipedia
Periodinane — PIFA redirects here. For PIFA (Planar Inverted F Antenna), see Microstrip antenna. The Dess Martin Periodinane Periodinanes are chemical compounds containing hypervalent iodine. These iodine compounds are hypervalent because the iodine atom in it … Wikipedia
Three-center bond — In chemistry, there are two types of three center bonds: *Three center two electron bond, found in electron deficient compounds such as boranes *Three center four electron bond, found in hypervalent compounds such as the noble gas compounds … Wikipedia
Liaison 3c-4e — Liaison à trois centres et quatre électrons La liaison à trois centres et quatre électrons (abrégé en liaison 3c 4e) est un modèle employé pour décrire les liaisons dans les molécules hypervalentes telles que le tétrafluorure de soufre SF4, le… … Wikipédia en Français
Liaison à 3 centres et 4 électrons — Liaison à trois centres et quatre électrons La liaison à trois centres et quatre électrons (abrégé en liaison 3c 4e) est un modèle employé pour décrire les liaisons dans les molécules hypervalentes telles que le tétrafluorure de soufre SF4, le… … Wikipédia en Français
Liaison à trois centres et quatre électrons — La liaison à trois centres et quatre électrons (abrégé en liaison 3c 4e) est un modèle employé pour décrire les liaisons dans les molécules hypervalentes telles que le tétrafluorure de soufre SF4, le pentafluorure de phosphore PF5, l hexafluorure … Wikipédia en Français
