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Lewis acid
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Lewis acid — rūgštis statusas T sritis chemija apibrėžtis Elektronų akceptorius. atitikmenys: angl. acid; Lewis acid rus. кислота; кислота Льюиса; льюисовская кислота ryšiai: sinonimas – Luiso rūgštis … Chemijos terminų aiškinamasis žodynas
lewis acid — noun Usage: usually capitalized L Etymology: after Gilbert N. Lewis died 1946 American chemist : acid II 2c … Useful english dictionary
Lewis acid — noun Etymology: Gilbert N. Lewis died 1946 American chemist Date: 1944 a substance that is capable of accepting an unshared pair of electrons from a base to form a covalent bond … New Collegiate Dictionary
Lewis acid — Chem. any substance capable of forming a covalent bond with a base by accepting a pair of electrons from it. [1940 45; named after G. N. LEWIS] * * * … Universalium
Lewis acid — noun Chemistry a compound or ionic species which can accept an electron pair from a donor compound. Origin 1940s: named after the American chemist Gilbert N. Lewis … English new terms dictionary
Lewis acid — /ˈluəs æsəd/ (say loohuhs asuhd) noun any substance which accepts an electron pair, as a hydrogen ion or boron trifluoride. {named after Gilbert Newton Lewis, 1875–1946, US chemist} …
Lewis acid — noun see acid II … Useful english dictionary
Lewis acid site — An acid site on a catalyst where the acidic entity is a positive ion (called a cation) such as Al3+ rather than an ionizable hydrogen. Named for the famed physical chemist G. N. Lewis. See: Brønsted acid site … Petroleum refining glossary
Chiral Lewis acid — Chiral Lewis acids (CLAs) are a novel class of Lewis acid catalyst used in enantioselective asymmetric synthesis reactions which produce optically active products from optically inactive or impure starting materials. This type of preferential… … Wikipedia
Lewis (disambiguation) — Lewis is the largest island of the Western Isles of Scotland.Lewis may also refer to: * Lewis (surname), a family nameIn U.S. places: * Lewis, Colorado * Lewis, Indiana * Lewis, Iowa * Lewis, Kansas * Lewis, Essex County, New York * Lewis, Lewis… … Wikipedia
