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Qu'est-ce (qui) est nucleophile - définition
Nucleophile
![alcohol]]](https://commons.wikimedia.org/wiki/Special:FilePath/Hydrox subst.png?width=200 "alcohol]]")
CHEMICAL SPECIES THAT DONATES AN ELECTRON PAIR TO FORM A CHEMICAL BOND IN RELATION TO A REACTION
Nucleophilicity; Nucleophiles; Nucleophilic; Nucleophilic attack; Ambident nucleophile; Nucleophyl
In chemistry, a nucleophile is a chemical species that forms bonds by donating an electron pair. All molecules and ions with a free pair of electrons or at least one pi bond can act as nucleophiles.
nucleophilic
CHEMICAL SPECIES THAT DONATES AN ELECTRON PAIR TO FORM A CHEMICAL BOND IN RELATION TO A REACTION
Nucleophilicity; Nucleophiles; Nucleophilic; Nucleophilic attack; Ambident nucleophile; Nucleophyl
[?nju:kl??(?)'f?l?k]
¦ adjective Chemistry having a tendency to donate electrons or react with protons. Often contrasted with electrophilic.
Derivatives
nucleophile noun
Carbanion
![Chiral oxy[<sup>2</sup>''H''<sub>1</sub>]methyllithiums. Bu stands for butyl, ''i''-Pr stands for isopropyl.](https://commons.wikimedia.org/wiki/Special:FilePath/PhosphatePhosphonateRearrangement.png?width=200 "Chiral oxy[<sup>2</sup>''H''<sub>1</sub>]methyllithiums. Bu stands for butyl, ''i''-Pr stands for isopropyl.")
ANION WITH AN EVEN NUMBER OF ELECTRONS AND HAVING AN UNSHARED PAIR OF ELECTRONS ON A TERVALENT CARBON ATOM OR—IF THE ION IS MESOMERIC—HAVING AT LEAST ONE SIGNIFICANT CONTRIBUTING STRUCTURE WITH AN UNSHARED PAIR OF ELECTRONS ON A TERVALENT CARBON ATOM
Active hydrogen compound; Carbon nucleophile; Carbon acid; CH acidity; Carbanions
A carbanion is an anion in which carbon is trivalent (forms three bonds) and bears a formal negative charge (in at least one significant resonance form).
