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Open AccessArticle

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

1
Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Av. Libertador Bernardo O’Higgins 3363, 9170022 Santiago, Chile
2
Centro para el Desarrollo de la Nanociencia y Nanotecnología, CEDENNA, 9170022 Santiago, Chile
3
Departamento de Ciencias Químicas, Universidad Andres Bello, Republica 275, 8370146 Santiago, Chile
*
Author to whom correspondence should be addressed.
Molecules 2019, 24(1), 44; https://doi.org/10.3390/molecules24010044
Received: 1 December 2018 / Revised: 20 December 2018 / Accepted: 21 December 2018 / Published: 22 December 2018
(This article belongs to the Special Issue Polyoxometalates and Polyoxometalate-Based Systems)
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. View Full-Text
Keywords: organoimido; polyoxometalate; charge transfer; electronic properties; TD-DFT; Rhenium organoimido; polyoxometalate; charge transfer; electronic properties; TD-DFT; Rhenium
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MDPI and ACS Style

Hermosilla-Ibáñez, P.; Wrighton-Araneda, K.; Cañón-Mancisidor, W.; Gutiérrez-Cutiño, M.; Paredes-García, V.; Venegas-Yazigi, D. Substitution Effect on the Charge Transfer Processes in Organo-Imido Lindqvist-Polyoxomolybdate. Molecules 2019, 24, 44.

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