NationMaster - Encyclopedia: Delocalised

In chemistry, delocalized electrons are electrons in a molecule that do not belong to a single atom or a covalent bond. Delocalized electrons are part of a pi electron system that extends over several adjacent atoms. Delocalized electrons can be found in Conjugated systems of double bonds and in aromatic systems.

In the simple aromatic ring benzene the delocalization of six pi electrons electrons over the whole ring is often indicated by the circle:

Categories: Chemistry stubs | Chemistry

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Delocalised - definition of Delocalised in Encyclopedia (98 words)
	In chemical compounds, delocalised electrons do not belong strictly to a covalent bond or single atom, but move more freely between the parts of the compound.
	One particular example is the benzene ring, where the central ring of carbon atoms leaves three electrons delocalised.
	This is presented either by drawing oscillating double bonds, or simply marking a circle in the benzene ring.

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