Eigen, Manfred

born May 9, 1927, Bochum, Ger.

German physicist.

He received his Ph.D. from the University of Göttingen in 1951. He shared a 1967 Nobel Prize with Ronald Norrish (1897–1978) and George Porter (b. 1920) for work on extremely rapid chemical reactions. His methods, called relaxation techniques, involve applying bursts of energy to a solution and following the rates of subsequent changes (flash photolysis); reactions thus studied include hydrogen ion formation during water dissociation and keto-enol tautomerism.

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▪ German physicist
born May 9, 1927, Bochum, Ger.

      German physicist who was corecipient, with R.G.W. Norrish and George Porter, of the 1967 Nobel Prize for Chemistry for work on extremely rapid chemical reactions.

      Eigen was educated in physics and chemistry at the University of Göttingen (Ph.D., 1951). He worked at the university's Institute of Physical Chemistry from 1951 to 1953, when he joined the Max Planck Institute for Biophysical Chemistry, Göttingen, where he became director in 1964 and later chairman.

      Eigen was able to study many extremely fast chemical reactions by a variety of methods that he introduced and which are called relaxation techniques. (relaxation phenomenon) These involve the application of bursts of energy to a solution that briefly destroy its equilibrium before a new equilibrium is reached. Eigen studied what happened to the solution in the extremely brief interval between the two equilibria by means of absorption spectroscopy. Among specific topics thus investigated were the rate of hydrogen ion formation through dissociation in water, diffusion-controlled protolytic reactions, and the kinetics of keto-enol tautomerism.

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Universalium. 2010.

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  • Eigen , Manfred — (1927–) German physical chemist Eigen, the son of a musician, was born at Bochum in Germany and educated at the University of Göttingen where he obtained his PhD in 1951. He joined the staff of the Max Planck Institute for Physical Chemistry at… …   Scientists

  • Eigen, Manfred — ► (n. 1927) Químico alemán. Fue premio Nobel de Química en 1967, compartido con G. Porter y R. Norrish, por sus estudios sobre reacciones químicas muy rápidas. * * * (n. 9 may. 1927, Bochum, Alemania). Físico alemán. Obtuvo su doctorado en la… …   Enciclopedia Universal

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  • Eigen — Manfred Eigen Manfred Eigen (né le 9 mai 1927 à Bochum) est un biophysicien allemand et un ancien directeur de l Institut Max Planck pour la chimie biophysique. Biographie Après son Abitur en 1944 au Gymnase humaniste de Bochum… …   Wikipédia en Français

  • eigen — ausgefallen; idiosynkratisch; besonders; eigenartig; eigentümlich; originell; bestimmt; eindeutig; charakteristisch; spezifisch * * * ei|gen [ ai̮gn̩] <Adj.>: 1 …   Universal-Lexikon

  • Eigen'sches Evolutionsmodell — Das Modell der Quasispezies wurde von Manfred Eigen und Peter Schuster entwickelt. Es beschreibt qualitativ die Evolution eines geschlossenen Systems von selbstreproduzierenden Molekülen, z. B. RNA oder DNA. Es wurde als Beitrag zur Suche nach… …   Deutsch Wikipedia

  • Manfred — I Italian Manfredi born с 1232 died Feb. 26, 1266, near Benevento, Kingdom of Naples King of Sicily (1258–66). Born out of wedlock, the son of Frederick II, he was made vicar of Italy and Sicily for his half brother Conrad IV, but, following… …   Universalium

  • Manfred — (as used in expressions) Eigen, Manfred Manfred Bennington Lee Richthofen, Manfred, barón von …   Enciclopedia Universal

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