Lewis acids

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• Lewis acids and bases — A Lewis acid is a chemical compound, A, that can accept a pair of electrons from a Lewis base, B, that acts as an electron pair donor, forming an adduct, AB. :A + :B rarr; A B Gilbert N. Lewis proposed this definition, which is based on chemical… …   Wikipedia

• Lewis, Gilbert N. — ▪ American chemist Introduction in full  Gilbert Newton Lewis  born Oct. 23, 1875, Weymouth, Mass., U.S. died March 23, 1946, Berkeley, Calif.       American physical chemist best known for his contributions to chemical thermodynamics, the… …   Universalium

• Lewis theory — ▪ chemistry       generalization concerning acids and bases introduced in 1923 by the U.S. chemist Gilbert N. Lewis, in which an acid is regarded as any compound which, in a chemical reaction, is able to attach itself to an unshared pair of… …   Universalium

• Lewis , Gilbert Newton — (1875–1946) Amercan physical chemist Lewis, born the son of a lawyer in Weymouth, Massachusetts, was educated at the University of Nebraska and at Harvard, where he obtained his PhD in 1899. After a period abroad at Göttingen and Leipzig he… …   Scientists

• Lewis Hastings Sarett — Infobox Person name = Lewis Hastings Sarett image size = caption = birth date = December 22, 1917 birth place = Champaign, Illinois death date = November 29, 1999 (age|1917|12|22|1999|11|29) death place = Viola, Idaho occupation = Organic chemist …   Wikipedia

• 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

• Gilbert N. Lewis — Infobox Scientist name = Gilbert N. Lewis box width = image size =250px caption =Lewis in the Berkeley Lab birth date = October 23, 1875 birth place = death date = March 23, 1946 death place = Berkeley residence = citizenship = nationality =… …   Wikipedia

• Gallery of Lewis structures in 3-D — This is a gallery of Lewis structures in 3 D. [ frame|Hydrogen] [ frame|Carbon] [ frame|Nitrogen] [ frame|Oxygen] Carbon Hydrogen covalent bond styles These pictures are 3D Lewis type representations of the carbon hydrogen bond using different… …   Wikipedia

• acid–base reaction — ▪ chemistry Introduction       a type of chemical process typified by the exchange of one or more hydrogen ions, H+, between species that may be neutral (molecules, such as water, H2O; or acetic acid, CH3CO2H) or electrically charged (ions, such… …   Universalium

• Acid — This article is about acids in chemistry. For the drug, see Lysergic acid diethylamide. For other uses, see Acid (disambiguation). Acidity redirects here. For the novelette, see Acidity (Novelette). Acids and Bases …   Wikipedia

• Коптюг — Коптюг, Валентин Афанасьевич Валентин Афанасьевич Коптюг Дата рождения: 9 июня 1931(1931 06 09) Место рождения: Юхнов, Западная область, СССР Дата смерти: 10 января 1997 …   Википедия