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- W2001066095 abstract "The absorption spectrum and the lifetime of solvated electrons was determined in water-ammonia mixtures with special consideration of the temperature- and pressure dependence. The solvated electrons were produced by pulseradiolysis. With increasing ammonia content the light absorption maximum of the solvated electrons is shifted to longer wave lengths. – The lifetime of the solvated electrons, restricted by the reaction with water, increases almost exponentially with the ammonia content whereas the activation energy and the activation volume decrease down to negative values. The optical data indicate that there is a smooth transition from hydrated to ammoniated electrons and that the molare volume of the electrons increases continuously with the ammonia content. The kinetic data can be explained on this basis and under the assumption that the entropy of the solvated electrons is the bigger the higher their volume. Das Absorptionsmaximum und die Lebensdauer radiolytisch erzeugter solvatisierter Elektronen in Wasser-Ammoniak-Mischungen wurde unter besonderer Berücksichtigung der Druck- und Temperaturabhängigkeit bestimmt. Das Absorptionsmaximum wird mit steigendem Ammoniakgehalt zu längeren Wellenlängen verschoben. – Die Lebensdauer der solvatisierten Elektronen, die durch die Reaktion mit Wasser begrenzt ist, steigt nahezu exponentiell mit dem Ammoniakgehalt an. Die Aktivierungsenergie und das Aktivierungsvolumen nehmen dagegen bis zu negativen Werten ab. Die optischen Daten deuten auf einen kontinuierlichen übergang von hydratisierten zu ammoniierten Elektronen hin, wobei der Raumbedarf der Elektronen mit dem Ammoniakgehalt steigt. Die kinetischen Daten können nach der Transition State Theorie erklärt werden unter dieser Annahme und der Voraussetzung, daß die Entropie der Elektronen mit ihrer Größe steigt." @default.
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- W2001066095 date "1971-07-01" @default.
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- W2001066095 title "solvent Dependence of Optical and Kinetic Properties of solvated Electrons in Water-Ammonia Mixtures" @default.
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- W2001066095 doi "https://doi.org/10.1002/bbpc.19710750733" @default.
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