Hammett equation


Hammett equation
Hameto lygtis statusas T sritis chemija apibrėžtis Lygtis, kuria naudojamasi reakcijų greičio arba pusiausvyros konstantoms apskaičiuoti. atitikmenys: angl. Hammett equation rus. уравнение Гамметта

Chemijos terminų aiškinamasis žodynas – 2-asis patais. ir papild. leid. – Vilnius: Mokslo ir enciklopedijų leidybos institutas. . 2003.

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  • Hammett equation — ; 1935; 17(1); 125 136 [http://pubs.acs.org/cgi bin/abstract.cgi/chreay/1935/17/i01/f pdf/f cr60056a010.pdf Abstract] ] .The basic idea is that for any two reactions with two aromatic reactants only differing in the type of substituent the change …   Wikipedia

  • Hammett — may refer to:* Hammett (film), 1982 film about writer Dashiell Hammett * Dashiell Hammett (1894–1961), author of novels The Maltese Falcon and The Thin Man * Louis Plack Hammett (1894–1987), physical chemist who developed the Hammett equation *… …   Wikipedia

  • Équation de Hammett — L équation de Hammett, en chimie organique, permet de relier les rendements ou les constantes d équilibre d un grand nombre de réactions impliquant des dérivés de l acide benzoïque avec la nature des meta ou para substituants. Cette équation… …   Wikipédia en Français

  • Hammett acidity function — The Hammett acidity function is a measure of acidity that is used for very concentrated solutions of strong acids, including superacids. In such solutions, simple approximations such as the Henderson Hasselbalch equation are no longer valid due… …   Wikipedia

  • Taft equation — The Taft equation is similar to the Hammett equation in that it relates the varying activities of a group of analogous compounds given changes in substituents. The difference between the equations is that where the Hammett equation does not… …   Wikipedia

  • Louis Plack Hammett — (April 7, 1894 February 9, 1987) was an American physical chemist. He is perhaps best known for the Hammett equation, which relates reaction rates to equilibrium constants for certain classes of organic reactions involving substituted aromatic… …   Wikipedia

  • Louis Plack Hammett — Naissance 7 avril 1894 Wilmington (Delaware) (États Unis) Décès 9 février 1987 Medford Leas (New Jersey) (États Unis) Nationalité …   Wikipédia en Français

  • Curtin–Hammett principle — The Curtin–Hammett principle is a principle in chemical kinetics proposed by David Yarrow Curtin and Louis Plack Hammett. It states that, for a reaction that has a pair of reactive intermediates or reactants that interconvert rapidly (as is… …   Wikipedia

  • Acid dissociation constant — Acetic acid, a weak acid, donates a proton (hydrogen ion, high …   Wikipedia

  • Constante de disociación ácida — El ácido acético, un ácido débil puede perder un protón (destacado en verde) y donarlo a una molécula de agua, H20, dando lugar a un anión acetato CH3COO y creando un catión hidronio …   Wikipedia Español


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