Energy of the hydrogen bonds of 1-substituted pyrazole and imidazole with phenol in the electronically excited state |
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| Authors: | Chipanina N N Kazakova N A Shestova L A Domnina E S Skvortsova G G Frolov Yu L |
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| Institution: | (1) Laboratoire de Chimie Générale, Conservatoire National des Arts et Métiers, 292 rue Saint-Martin, 75003 Paris, France;(2) Present address: Laboratoire de Photophysique et Photochimie Supramoléculaires et Macromoléculaires (CNRS UMR 8531), École Normale Supérieure de Cachan, 61 Avenue du Président Wilson, 94235 Cachan Cedex, France; |
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| Abstract: | | 1. |
The energy of the interaction in the electronically excited state was determined from the magnitude of the shift in frequency of the vibronic maximums in the UV spectra of phenol during its formation of hydrogen bonds with 1-ethylpyrazoles, 1-ethyl-, and 1-vinylimidazole.
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The most notable change in the energy of the hydrogen bonds during excitation is observed for 1-ethylimidazole which possesses the greatest electron-donor capability in the ground state.
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