electron-deficient

electron-deficient
Макаров: электроноакцепторный, электронодефицитные, электронодефицитный

Универсальный англо-русский словарь. . 2011.

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  • 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

  • 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

  • Four-center two-electron bond — A four center two electron bond is a type of chemical bond in which four atoms share two electrons in bonding which is unusual because in ordinary chemical bonds two atoms share two electrons (2c 2e bonding). This type of bonding is postulated in …   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

  • Negative electron-transfer dissociation — (NETD) is an ion/ion reaction in which an electron from an anionic specie is transferred to cationic reagent.[1] Following this transfer event, the electron deficient anion undergoes internal rearrangement and fragments. NETD is the ion/ion… …   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

  • three-center two-electron bond — noun Any of several forms of extended covalent bond, deficient in one electron, joining three atoms …   Wiktionary

  • 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

  • Metallic bond — Metallic bonding is the electrostatic attractive forces between the delocalized electrons, called conduction electrons, gathered in an electron sea , and the positively charged metal ions. Understood as the sharing of free electrons among a… …   Wikipedia

  • chemical compound — Introduction  any substance composed of identical molecules consisting of atoms (atom) of two or more chemical elements (chemical element).       All the matter in the universe is composed of the atoms of more than 100 different chemical elements …   Universalium

  • Magic acid — Fluorosulfuric acid antimony pentafluoride 1:1 Other names Magic Acid …   Wikipedia


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