A theoretical-experimental study of Wells-Dawson phospho-tungstic heteropolyacid: An explanation of the pseudoliquid or surface-type behaviour

The aim of the present work is to predict theoretically the nature of the mechanism of catalytic behaviour, pseudoliquid or surface-type, of Wells-Dawson solid acid (WDA). For this purpose, we took into account the dipolar moment of the substrates and the presence of H5O2 + species in their structur...

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Autores principales: Sambeth, Jorge Enrique, Romanelli, Gustavo Pablo, Autino, Juan Carlos, Thomas, Horacio Jorge, Baronetti, Graciela Teresita
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2010
Materias:
Ingeniería Química
Extended Huckel method
Heteropoly compounds
Pseudoliquid phase
Surface-type activity
Wells-Dawson acid
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/96382
https://ri.conicet.gov.ar/11336/76501
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-96382
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería Química
Extended Huckel method
Heteropoly compounds
Pseudoliquid phase
Surface-type activity
Wells-Dawson acid
spellingShingle Ingeniería Química
Extended Huckel method
Heteropoly compounds
Pseudoliquid phase
Surface-type activity
Wells-Dawson acid
Sambeth, Jorge Enrique
Romanelli, Gustavo Pablo
Autino, Juan Carlos
Thomas, Horacio Jorge
Baronetti, Graciela Teresita
A theoretical-experimental study of Wells-Dawson phospho-tungstic heteropolyacid: An explanation of the pseudoliquid or surface-type behaviour
topic_facet Ingeniería Química
Extended Huckel method
Heteropoly compounds
Pseudoliquid phase
Surface-type activity
Wells-Dawson acid
description The aim of the present work is to predict theoretically the nature of the mechanism of catalytic behaviour, pseudoliquid or surface-type, of Wells-Dawson solid acid (WDA). For this purpose, we took into account the dipolar moment of the substrates and the presence of H5O2 + species in their structure, considering both theoretical and experimental results. In the present paper we studied experimentally the deprotection reaction of aldehydes from 1,1-diacetates. These theoretical and experimental results together with our previous works indicate that the catalytic behaviour of WDA is a function of the dipolar moment of organic molecules and the presence of H5O2 + species. The pseudoliquid or surface-type behaviour depends on the physicochemical properties of the organic structure and its possibility of interaction with H5O2 +.
format Articulo
Preprint
author Sambeth, Jorge Enrique
Romanelli, Gustavo Pablo
Autino, Juan Carlos
Thomas, Horacio Jorge
Baronetti, Graciela Teresita
author_facet Sambeth, Jorge Enrique
Romanelli, Gustavo Pablo
Autino, Juan Carlos
Thomas, Horacio Jorge
Baronetti, Graciela Teresita
author_sort Sambeth, Jorge Enrique
title A theoretical-experimental study of Wells-Dawson phospho-tungstic heteropolyacid: An explanation of the pseudoliquid or surface-type behaviour
title_short A theoretical-experimental study of Wells-Dawson phospho-tungstic heteropolyacid: An explanation of the pseudoliquid or surface-type behaviour
title_full A theoretical-experimental study of Wells-Dawson phospho-tungstic heteropolyacid: An explanation of the pseudoliquid or surface-type behaviour
title_fullStr A theoretical-experimental study of Wells-Dawson phospho-tungstic heteropolyacid: An explanation of the pseudoliquid or surface-type behaviour
title_full_unstemmed A theoretical-experimental study of Wells-Dawson phospho-tungstic heteropolyacid: An explanation of the pseudoliquid or surface-type behaviour
title_sort theoretical-experimental study of wells-dawson phospho-tungstic heteropolyacid: an explanation of the pseudoliquid or surface-type behaviour
publishDate 2010
url http://sedici.unlp.edu.ar/handle/10915/96382
https://ri.conicet.gov.ar/11336/76501
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