Donato, D. I. and Jannelli, M. P. and Magazzù, S. and Majolino, D. and Migliardo, P. (1994) Determinazione del fattore di correlazione di Kirkwood da misure di permittività dielettrica e di assorbimento FTIR per lo studfio di meccanismi di crescita inliquidi associati. Accademia Peloritana dei Pericolanti Classe FF.MM.NN., LXXII (Supplement 1). pp. 453-464.
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Abstract
A detailed vibrational and permettivity study, performed on associated liquids (alcohols) “dispersed” in , is presented. The experimentally obtained data, taken at a concentration limit as low as
allow to explain the growth mechanism present in such systems (normal-pentanol and 2-methyl-2-butanol), starting from the monomeric state up to oligomers, by increasing the concentration values. Furthermore the behavior of the measured Kirkwood correlation factor
indicates that the cychc speeies (
) are the first existing aggregates, independently from the systems. The interaction among the monomers induces anharmonic effects into the original
stretching, lowering the center frequencies and enlarging the linewidths. When the concentration increases the more hindered alcohol (2M-2BuOH) reveals mainly the existence of cyclic dimers (
< 1), whereas a growth process of linear
-mers is evidenciated for the linear normal-pentanol width a simultaneous disappearance of the cyclic structures.
Item Type: | Article |
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Subjects: | M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Fisiche, Matematiche e Naturali > 1994 > Supplemento 1 parte 2 M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Medico-Biologiche > 1994 > Supplemento 1 parte 2 M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Giuridiche, Economiche e Politiche > 1994 > Supplemento 1 parte 2 M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Lettere Filosofia e belle Arti > 1994 > Supplemento 1 parte 2 |
Depositing User: | Mr Nunzio Femminò |
Date Deposited: | 17 Apr 2014 09:36 |
Last Modified: | 17 Apr 2014 09:36 |
URI: | http://cab.unime.it/mus/id/eprint/5166 |
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