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delocalization    
不定位; 离域; 非定域作用

不定位; 离域; 非定域作用


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  • Delocalization of Electrons - Chemistry LibreTexts
    Charge delocalization is a stabilizing force because it spreads energy over a larger area rather than keeping it confined to a small area Since electrons are charges, the presence of delocalized electrons brings extra stability to a system compared to a similar system where electrons are localized
  • Delocalized electron - Wikipedia
    [1] The term delocalization is general and can have slightly different meanings in different fields: In organic chemistry, it refers to resonance in conjugated systems and aromatic compounds In solid-state physics, it refers to free electrons that facilitate electrical conduction
  • Delocalized Electron: Definition and Examples
    Delocalization of electrons stabilizes the system because it spreads energy over a larger area rather than keeping it confined to a small area Therefore, delocalization brings extra stability to a system compared to a similar system with localized electrons
  • Definition of delocalization - Chemistry Dictionary
    Delocalization happens when electric charge is spread over more than one atom For example, bonding electrons may be distributed among several atoms that are bonded together
  • Localized and Delocalized Lone Pairs and Bonds - Chemistry Steps
    These electrons belong to only one atom – they are localized The ones that can move around are delocalized – they can be placed on one atom, but they can also be shared between that and the neighboring atom, i e , can participate in resonance stabilization
  • What is a Delocalised Electron? - BYJUS
    How do you know if an electron is delocalised? The simplest way to detect delocalised electrons is to compare electron locations in two resonance forms Delocalization occurs when a pair appears in one place in one form and another place in another form
  • What Are Delocalized Electrons and How Do They Work?
    For delocalization to occur, the p-orbitals on adjacent atoms must be aligned and overlap continuously, forming a chemical highway for the electrons A classic example of a fully delocalized system is the benzene molecule, a hexagonal ring of six carbon atoms
  • IUPAC - delocalization (D01583)
    Delocalization in such species may be represented by partial bonds or as resonance (here symbolized by a two-headed arrow) between contributing structures These examples also illustrate the concomitant delocalization of charge in ionic conjugated systems
  • The Physics of Electron Localization and Delocalization
    In molecular chemistry, the terms localized delocalized usually refer to electrons (atomic nuclei (excepting protons) are rarely treated as delocalized) Localized electrons are typically associated with a specific atom or pair of atoms; delocalized electrons are spread out over several atomic nuclei
  • pushing electrons - The University of Texas at Dallas
    To introduce the concept of electron delocalization from the perspective of molecular orbitals, to understand the relationship between electron delocalization and resonance, and to learn the principles of electron movement used in writing resonance structures in Lewis notation, known as the curved arrow formalism





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