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nucleophile

/nuːkliəfaɪl/ noun · British & US
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What does nucleophile mean?

A nucleophile is a chemical species that donates a pair of electrons to form a covalent bond with an electrophile. This type of species is typically a negatively charged ion or a molecule with a partial negative charge. Nucleophiles play a crucial role in various chemical reactions, including those in organic chemistry and biochemistry. They are often contrasted with electrophiles, which accept pairs of electrons to form covalent bonds. Understanding nucleophiles is essential for studying chemical reactivity and designing new chemical reactions. The term is widely used in chemistry and related fields.

noun

A nucleophile is a chemical species that donates a pair of electrons to form a covalent bond with an electrophile. It is typically a negatively charged ion or a molecule with a partial negative charge.

Senses
  1. A chemical species that donates a pair of electrons to form a covalent bond.
  2. A negatively charged ion or molecule with a partial negative charge that acts as a reactant in a chemical reaction.
Example

"In organic chemistry, the hydroxide ion acts as a nucleophile, attacking the carbon atom in a carbonyl group."

More examples

"The nucleophile attacks the electrophile, resulting in the formation of a new covalent bond."

"In biochemistry, nucleophiles play a crucial role in enzyme-catalyzed reactions."

Plural nucleophiles

The plural form 'nucleophiles' is used to refer to multiple chemical species that act as nucleophiles.

Example

"Several nucleophiles are commonly used in organic synthesis, including hydroxide and ammonia."

Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.

Etymology of nucleophile

The term 'nucleophile' originates from the Latin words 'nucleus', meaning 'kernel' or 'core', and the Greek word 'philos', meaning 'love' or 'affinity'. The term was coined to describe chemical species that have a strong affinity for positively charged or electron-deficient centers.

How nucleophile is actually used

The term 'nucleophile' is commonly used in organic chemistry and biochemistry, and is often contrasted with 'electrophile'.

What's another word for nucleophile?

What's the opposite of nucleophile?

Rhymes with nucleophile