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Delocalized electron
Delocalized electron In chemistry, delocalized electrons are electrons in a molecule that ... 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 ... and in aromatic systems. A case of delocalized electrons occurs also in solid metals, ...
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Chemical bond
... state. In a metallic bond, there are delocalized electrons in a lattice of atoms. By ... assigned to individual atoms, but is instead delocalized in the MOs between atoms. The widely ... of electron delocalization. Electrons can be partially delocalized between atoms, but spend more time around ... either localized on certain atom(s) or delocalized between two or more atoms. The type ... much the electron density is localized or delocalized among the atoms of the substance. ...
http://en.wikipedia.org/wiki/Chemical_bond - 22k - Cached - Similar pages
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Benzene (translated from French)
... is called a resonant system pi (or delocalized) that one can describe like a vast ... an atom or a connection, but is delocalized on all the ring, reinforcing each connection ... in an equivalent way: To represent this delocalized character of the connections, the benzene is ... the real system in which connections? are delocalized on the totality of the cycle is ... intermediary, named intermediary of Wheland, is actually delocalized on the cycle by mesomery, which ...
http://fr.wikipedia.org/wiki/Benzène - 37k - Cached (French) - Wikipedia (French) - Similar pages
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Carbocation (translated from French)
... a chemical compound of the electrons are delocalized one speaks about mesomery . In this case ... 2p close that the electrons can be delocalized. And if the positive load of the ... mésomère effect, it will be it also delocalized and to some extent distributed on all ... But in this compound the electrons are delocalized because of the double connection, the compound ...
http://fr.wikipedia.org/wiki/Carbocation - 13k - Cached (French) - Wikipedia (French) - Similar pages
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Covalent bond (translated from French)
... an electron; the pair of electrons being delocalized between the two atoms. The division of ... in monoxyde CO. Sometimes, an electron is delocalized on several atoms, as in the case ... such as benzene . When the electrons are delocalized on many atoms, there is one metal ... whole number and the bonds can be delocalized on more than two atoms. For example ...
http://fr.wikipedia.org/wiki/Liaison_covalente - 10k - Cached (French) - Wikipedia (French) - Similar pages
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Resonance (chemistry)
... more than two atoms, and hence are delocalized. Both paired and unshared electrons may be delocalized, but all the electrons must be conjugated ... the hybrid structure the positive charge is delocalized over the terminal methylene groups. See also ...
http://en.wikipedia.org/wiki/Resonance_(chemistry) - 11k - Cached - Similar pages
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Aromaticity
... covalently-bound atoms with specific characteristics: A delocalized conjugated pi system, most commonly an arrangement ... or more rings A number of pi delocalized electrons that is even but not a ... is not, since the number of pi delocalized electron is 4, which is not satisfied ...
http://en.wikipedia.org/wiki/Aromaticity - 10k - Cached - Similar pages
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Indol (translated from French)
... itaniline. Indeed, this doublet of electron is delocalized and takes part inaromaticity system. The basic ... a compound rich in electrons (10 electrons delocalized on the cycles) which can be easily ...
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University of Rheims Champagne-Ardenne (translated from French)
... Ardenne modernized its lesson, proposed new dies, delocalized some of its formations, increased its capacities ... Wall , the development with Troyes of a delocalized antenna of the Faculty of Law, Sciences ...
http://fr.wikipedia.org/wiki/Université_de_Reims_Champagne-Ardenne - 12k - Cached (French) - Wikipedia (French) - Similar pages
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Simple aromatic ring
... only of conjugated planar ring systems with delocalized pi electron clouds instead of discrete alternating ... of electrons of the nitrogen atom is delocalized and contributes to the aromatic pi electron ...
http://en.wikipedia.org/wiki/Simple_aromatic_ring - 6k - Cached - Similar pages
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