Share this entry

Share this page

Lewis acid

Syllabification: Lew·is ac·id

Definition of Lewis acid in English:

noun

Chemistry
A compound or ionic species that can accept an electron pair from a donor compound.
Example sentences
  • In this electrophilic aromatic substitution, the first electrophile is the Lewis acid that accepts the halogen from an alkyl halide (the nucleophile).
  • In simple additions, the carbonyl compounds can behave as both Lewis acids and Lewis bases depending on what reagents are present.
  • In a coordinate covalent bond, both electrons are donated by the Logan, a Lewis base, to the metal atom, a Lewis acid.

Origin

1940s: named after Gilbert N. Lewis (1875–1946), US chemist.

Definition of Lewis acid in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day orthoepy
Pronunciation: ôrˈTHōəpē
noun
the correct or accepted pronunciation of words