Substitution Effect on the Charge Transfer Processes in Organo-Imido Lindqvist-Polyoxomolybdate

Two new aromatic organo-imido polyoxometalates with an electron donor triazole group ([n-Bu4N]2[Mo6O18NC6H4N3C2H2]) (1) and a highly conjugated fluorene ([n-Bu4N]2[Mo6O18NC13H9]) (2) have been obtained. The electrochemical and spectroscopic properties of several organo-imido systems were studied. Th...

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Main Authors: Patricio Hermosilla-Ibáñez, Kerry Wrighton-Araneda, Walter Cañón-Mancisidor, Marlen Gutiérrez-Cutiño, Verónica Paredes-García, Diego Venegas-Yazigi
Format: Article
Language:English
Published: MDPI AG 2018-12-01
Series:Molecules
Subjects:
Online Access:http://www.mdpi.com/1420-3049/24/1/44
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author Patricio Hermosilla-Ibáñez
Kerry Wrighton-Araneda
Walter Cañón-Mancisidor
Marlen Gutiérrez-Cutiño
Verónica Paredes-García
Diego Venegas-Yazigi
author_facet Patricio Hermosilla-Ibáñez
Kerry Wrighton-Araneda
Walter Cañón-Mancisidor
Marlen Gutiérrez-Cutiño
Verónica Paredes-García
Diego Venegas-Yazigi
author_sort Patricio Hermosilla-Ibáñez
collection DOAJ
description Two new aromatic organo-imido polyoxometalates with an electron donor triazole group ([n-Bu4N]2[Mo6O18NC6H4N3C2H2]) (1) and a highly conjugated fluorene ([n-Bu4N]2[Mo6O18NC13H9]) (2) have been obtained. The electrochemical and spectroscopic properties of several organo-imido systems were studied. These properties were analysed by the theoretical study of the redox potentials and by means of the excitation analysis, in order to understand the effect on the substitution of the organo-imido fragment and the effect of the interaction to a metal centre. Our results show a bathochromic shift related to the charge transfer processes induced by the increase of the conjugated character of the organic fragment. The cathodic shift obtained from the electrochemical studies reflects that the electronic communication and conjugation between the organic and inorganic fragments is the main reason of this phenomenon.
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spelling doaj.art-ca7b6ee7aec04b75be2238e62efcef5c2022-12-22T01:54:31ZengMDPI AGMolecules1420-30492018-12-012414410.3390/molecules24010044molecules24010044Substitution Effect on the Charge Transfer Processes in Organo-Imido Lindqvist-PolyoxomolybdatePatricio Hermosilla-Ibáñez0Kerry Wrighton-Araneda1Walter Cañón-Mancisidor2Marlen Gutiérrez-Cutiño3Verónica Paredes-García4Diego Venegas-Yazigi5Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Av. Libertador Bernardo O’Higgins 3363, 9170022 Santiago, ChileFacultad de Química y Biología, Universidad de Santiago de Chile, USACH, Av. Libertador Bernardo O’Higgins 3363, 9170022 Santiago, ChileFacultad de Química y Biología, Universidad de Santiago de Chile, USACH, Av. Libertador Bernardo O’Higgins 3363, 9170022 Santiago, ChileFacultad de Química y Biología, Universidad de Santiago de Chile, USACH, Av. Libertador Bernardo O’Higgins 3363, 9170022 Santiago, ChileCentro para el Desarrollo de la Nanociencia y Nanotecnología, CEDENNA, 9170022 Santiago, ChileFacultad de Química y Biología, Universidad de Santiago de Chile, USACH, Av. Libertador Bernardo O’Higgins 3363, 9170022 Santiago, ChileTwo new aromatic organo-imido polyoxometalates with an electron donor triazole group ([n-Bu4N]2[Mo6O18NC6H4N3C2H2]) (1) and a highly conjugated fluorene ([n-Bu4N]2[Mo6O18NC13H9]) (2) have been obtained. The electrochemical and spectroscopic properties of several organo-imido systems were studied. These properties were analysed by the theoretical study of the redox potentials and by means of the excitation analysis, in order to understand the effect on the substitution of the organo-imido fragment and the effect of the interaction to a metal centre. Our results show a bathochromic shift related to the charge transfer processes induced by the increase of the conjugated character of the organic fragment. The cathodic shift obtained from the electrochemical studies reflects that the electronic communication and conjugation between the organic and inorganic fragments is the main reason of this phenomenon.http://www.mdpi.com/1420-3049/24/1/44organoimidopolyoxometalatecharge transferelectronic propertiesTD-DFTRhenium
spellingShingle Patricio Hermosilla-Ibáñez
Kerry Wrighton-Araneda
Walter Cañón-Mancisidor
Marlen Gutiérrez-Cutiño
Verónica Paredes-García
Diego Venegas-Yazigi
Substitution Effect on the Charge Transfer Processes in Organo-Imido Lindqvist-Polyoxomolybdate
Molecules
organoimido
polyoxometalate
charge transfer
electronic properties
TD-DFT
Rhenium
title Substitution Effect on the Charge Transfer Processes in Organo-Imido Lindqvist-Polyoxomolybdate
title_full Substitution Effect on the Charge Transfer Processes in Organo-Imido Lindqvist-Polyoxomolybdate
title_fullStr Substitution Effect on the Charge Transfer Processes in Organo-Imido Lindqvist-Polyoxomolybdate
title_full_unstemmed Substitution Effect on the Charge Transfer Processes in Organo-Imido Lindqvist-Polyoxomolybdate
title_short Substitution Effect on the Charge Transfer Processes in Organo-Imido Lindqvist-Polyoxomolybdate
title_sort substitution effect on the charge transfer processes in organo imido lindqvist polyoxomolybdate
topic organoimido
polyoxometalate
charge transfer
electronic properties
TD-DFT
Rhenium
url http://www.mdpi.com/1420-3049/24/1/44
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